Add share network with multiple subnets

This patch adds the possibility to create share networks with
multiple subnets in Manila. It also updates the share server api
to receive "share_network_subnet_id" instead of "share_network_id".

Each share network subnet must be associated with only one
availability zone. Each share network must have a single default
share network subnet.

DocImpact
APIImpact
Depends-On: I13bb48e7c03e16c26946ccf9d48e80592391a3d1
Partially-implements: bp share-network-multiple-subnets
Change-Id: Id8814a8b26c9b9dcb1fe71d0d7e9b79e8b8a9210
Closes-Bug: #1588144
Co-Authored-By: lseki <luciomitsuru.seki@fit-tecnologia.org.br>
Co-Authored-By: dviroel <viroel@gmail.com>

manila/api/common.py

@@ -19,6 +19,7 @@ import re
 import six
 import string
 
+from operator import xor
 from oslo_config import cfg
 from oslo_log import log
 from oslo_utils import encodeutils
@@ -184,6 +185,14 @@ def dict_to_query_str(params):
     return param_str.rstrip('&')
 
 
+def check_net_id_and_subnet_id(body):
+    if xor('neutron_net_id' in body, 'neutron_subnet_id' in body):
+        msg = _("When creating a new share network subnet you need to "
+                "specify both neutron_net_id and neutron_subnet_id or "
+                "none of them.")
+        raise webob.exc.HTTPBadRequest(explanation=msg)
+
+
 class ViewBuilder(object):
     """Model API responses as dictionaries."""
 

manila/api/openstack/api_version_request.py

@@ -137,13 +137,16 @@ REST_API_VERSION_HISTORY = """
     * 2.50 - Added update share type API to Share Type APIs. Through this API
              we can update the ``name``, ``description`` and/or
              ``share_type_access:is_public`` fields of the share type.
+    * 2.51 - Added Share Network with multiple Subnets. Updated Share Networks
+             to handle with one or more subnets in different availability
+             zones.
 """
 
 # The minimum and maximum versions of the API supported
 # The default api version request is defined to be the
 # minimum version of the API supported.
 _MIN_API_VERSION = "2.0"
-_MAX_API_VERSION = "2.50"
+_MAX_API_VERSION = "2.51"
 DEFAULT_API_VERSION = _MIN_API_VERSION
 
 

manila/api/openstack/rest_api_version_history.rst

@@ -281,3 +281,9 @@ user documentation.
   Added update share type API to Share Type APIs. We can update the ``name``,
   ``description`` and/or ``share_type_access:is_public`` fields of the share
   type by the update share type API.
+
+2.51
+----
+  Added to the service the possibility to have multiple subnets per share
+  network, each of them associated to a different AZ. It is also possible to
+  configure a default subnet that spans all availability zones.

manila/api/v1/security_service.py

@@ -151,9 +151,11 @@ class SecurityServiceController(wsgi.Controller):
                                              security_service_id):
         share_networks = db.share_network_get_all_by_security_service(
             context, security_service_id)
+
         for sn in share_networks:
-            if sn['share_servers']:
-                return True
+            for sns in sn['share_network_subnets']:
+                if 'share_servers' in sns and sns['share_servers']:
+                    return True
         return False
 
     def update(self, req, id, body):

manila/api/v1/share_servers.py

@@ -47,21 +47,34 @@ class ShareServerController(wsgi.Controller):
 
         search_opts = {}
         search_opts.update(req.GET)
-
         share_servers = db_api.share_server_get_all(context)
         for s in share_servers:
-            s.project_id = s.share_network['project_id']
-            if s.share_network['name']:
-                s.share_network_name = s.share_network['name']
-            else:
-                s.share_network_name = s.share_network_id
+            try:
+                s.share_network_id = s.share_network_subnet['share_network_id']
+                share_network = db_api.share_network_get(
+                    context, s.share_network_id)
+                s.project_id = share_network['project_id']
+                if share_network['name']:
+                    s.share_network_name = share_network['name']
+                else:
+                    s.share_network_name = share_network['id']
+            except exception.ShareNetworkNotFound:
+                # NOTE(dviroel): The share-network may already be deleted while
+                # the share-server is in 'deleting' state. In this scenario,
+                # we will return some empty values.
+                LOG.debug("Unable to retrieve share network details for share "
+                          "server %(server)s, the network %(network)s was "
+                          "not found.",
+                          {'server': s.id, 'network': s.share_network_id})
+                s.project_id = ''
+                s.share_network_name = ''
         if search_opts:
             for k, v in search_opts.items():
                 share_servers = [s for s in share_servers if
                                  (hasattr(s, k) and
                                   s[k] == v or k == 'share_network' and
-                                  v in [s.share_network['name'],
-                                        s.share_network['id']])]
+                                  v in [s.share_network_name,
+                                        s.share_network_id])]
         return self._view_builder.build_share_servers(req, share_servers)
 
     @wsgi.Controller.authorize
@@ -70,13 +83,21 @@ class ShareServerController(wsgi.Controller):
         context = req.environ['manila.context']
         try:
             server = db_api.share_server_get(context, id)
-            server.project_id = server.share_network["project_id"]
-            if server.share_network['name']:
-                server.share_network_name = server.share_network['name']
+            share_network = db_api.share_network_get(
+                context, server.share_network_subnet['share_network_id'])
+            server.share_network_id = share_network['id']
+            server.project_id = share_network['project_id']
+            if share_network['name']:
+                server.share_network_name = share_network['name']
             else:
-                server.share_network_name = server.share_network_id
+                server.share_network_name = share_network['id']
         except exception.ShareServerNotFound as e:
-            raise exc.HTTPNotFound(explanation=e)
+            raise exc.HTTPNotFound(explanation=e.msg)
+        except exception.ShareNetworkNotFound as e:
+            msg = _("Share server %s could not be found. Its associated "
+                    "share network does not "
+                    "exist.") % server.share_network_subnet['share_network_id']
+            raise exc.HTTPNotFound(explanation=msg)
         return self._view_builder.build_share_server(req, server)
 
     @wsgi.Controller.authorize
@@ -86,7 +107,7 @@ class ShareServerController(wsgi.Controller):
         try:
             share_server = db_api.share_server_get(context, id)
         except exception.ShareServerNotFound as e:
-            raise exc.HTTPNotFound(explanation=e)
+            raise exc.HTTPNotFound(explanation=e.msg)
 
         return self._view_builder.build_share_server_details(
             share_server['backend_details'])
@@ -98,7 +119,7 @@ class ShareServerController(wsgi.Controller):
         try:
             share_server = db_api.share_server_get(context, id)
         except exception.ShareServerNotFound as e:
-            raise exc.HTTPNotFound(explanation=e)
+            raise exc.HTTPNotFound(explanation=e.msg)
         allowed_statuses = [constants.STATUS_ERROR, constants.STATUS_ACTIVE]
         if share_server['status'] not in allowed_statuses:
             data = {
@@ -112,7 +133,7 @@ class ShareServerController(wsgi.Controller):
         try:
             self.share_api.delete_share_server(context, share_server)
         except exception.ShareServerInUse as e:
-            raise exc.HTTPConflict(explanation=e)
+            raise exc.HTTPConflict(explanation=e.msg)
         return webob.Response(status_int=http_client.ACCEPTED)
 
 

manila/api/v1/shares.py

@@ -341,8 +341,15 @@ class ShareMixin(object):
                     context,
                     share_network_id)
             except exception.ShareNetworkNotFound as e:
-                raise exc.HTTPNotFound(explanation=six.text_type(e))
+                raise exc.HTTPNotFound(explanation=e.msg)
             kwargs['share_network_id'] = share_network_id
+            if availability_zone_id:
+                if not db.share_network_subnet_get_by_availability_zone_id(
+                        context, share_network_id,
+                        availability_zone_id=availability_zone_id):
+                    msg = _("A share network subnet was not found for the "
+                            "requested availability zone.")
+                    raise exc.HTTPBadRequest(explanation=msg)
 
         display_name = share.get('display_name')
         display_description = share.get('display_description')

manila/api/v2/router.py

@@ -43,6 +43,7 @@ from manila.api.v2 import share_group_types
 from manila.api.v2 import share_groups
 from manila.api.v2 import share_instance_export_locations
 from manila.api.v2 import share_instances
+from manila.api.v2 import share_network_subnets
 from manila.api.v2 import share_networks
 from manila.api.v2 import share_replica_export_locations
 from manila.api.v2 import share_replicas
@@ -296,6 +297,33 @@ class APIRouter(manila.api.openstack.APIRouter):
                         collection={"detail": "GET"},
                         member={"action": "POST"})
 
+        self.resources["share_network_subnets"] = (
+            share_network_subnets.create_resource())
+        mapper.connect("share-networks",
+                       "/{project_id}/share-networks/{share_network_id}/"
+                       "subnets",
+                       controller=self.resources["share_network_subnets"],
+                       action="create",
+                       conditions={"method": ["POST"]})
+        mapper.connect("share-networks",
+                       "/{project_id}/share-networks/{share_network_id}/"
+                       "subnets/{share_network_subnet_id}",
+                       controller=self.resources["share_network_subnets"],
+                       action="delete",
+                       conditions={"method": ["DELETE"]})
+        mapper.connect("share-networks",
+                       "/{project_id}/share-networks/{share_network_id}/"
+                       "subnets/{share_network_subnet_id}",
+                       controller=self.resources["share_network_subnets"],
+                       action="show",
+                       conditions={"method": ["GET"]})
+        mapper.connect("share-networks",
+                       "/{project_id}/share-networks/{share_network_id}/"
+                       "subnets",
+                       controller=self.resources["share_network_subnets"],
+                       action="index",
+                       conditions={"method": ["GET"]})
+
         self.resources["share_servers"] = share_servers.create_resource()
         mapper.resource("share_server",
                         "share-servers",

manila/api/v2/share_network_subnets.py

@@ -0,0 +1,202 @@
+# Copyright 2019 NetApp, Inc.
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+
+from manila.api import common
+from oslo_db import exception as db_exception
+from oslo_log import log
+from six.moves import http_client
+import webob
+from webob import exc
+
+from manila.api.openstack import wsgi
+from manila.api.views import share_network_subnets as subnet_views
+from manila.db import api as db_api
+from manila import exception
+from manila.i18n import _
+from manila.share import rpcapi as share_rpcapi
+
+LOG = log.getLogger(__name__)
+
+
+class ShareNetworkSubnetController(wsgi.Controller):
+    """The Share Network Subnet API controller for the OpenStack API."""
+
+    resource_name = 'share_network_subnet'
+    _view_builder_class = subnet_views.ViewBuilder
+
+    def __init__(self):
+        super(ShareNetworkSubnetController, self).__init__()
+        self.share_rpcapi = share_rpcapi.ShareAPI()
+
+    @wsgi.Controller.api_version("2.51")
+    @wsgi.Controller.authorize
+    def index(self, req, share_network_id):
+        """Returns a list of share network subnets."""
+        context = req.environ['manila.context']
+
+        try:
+            share_network = db_api.share_network_get(context, share_network_id)
+        except exception.ShareNetworkNotFound as e:
+            raise exc.HTTPNotFound(explanation=e.msg)
+
+        return self._view_builder.build_share_network_subnets(
+            req, share_network.get('share_network_subnets'))
+
+    def _all_share_servers_are_auto_deletable(self, share_network_subnet):
+        return all([ss['is_auto_deletable'] for ss
+                    in share_network_subnet['share_servers']])
+
+    @wsgi.Controller.api_version('2.51')
+    @wsgi.Controller.authorize
+    def delete(self, req, share_network_id, share_network_subnet_id):
+        """Delete specified share network subnet."""
+        context = req.environ['manila.context']
+
+        try:
+            db_api.share_network_get(context, share_network_id)
+        except exception.ShareNetworkNotFound as e:
+            raise exc.HTTPNotFound(explanation=e.msg)
+
+        try:
+            share_network_subnet = db_api.share_network_subnet_get(
+                context, share_network_subnet_id)
+        except exception.ShareNetworkSubnetNotFound as e:
+            raise exc.HTTPNotFound(explanation=e.msg)
+
+        for share_server in share_network_subnet['share_servers'] or []:
+            shares = db_api.share_instances_get_all_by_share_server(
+                context, share_server['id'])
+            if shares:
+                msg = _("Cannot delete share network subnet %(id)s, it has "
+                        "one or more shares.") % {
+                    'id': share_network_subnet_id}
+                LOG.error(msg)
+                raise exc.HTTPConflict(explanation=msg)
+
+        # NOTE(silvacarlose): Do not allow the deletion of any share server
+        # if any of them has the flag is_auto_deletable = False
+        if not self._all_share_servers_are_auto_deletable(
+                share_network_subnet):
+            msg = _("The service cannot determine if there are any "
+                    "non-managed shares on the share network subnet %(id)s,"
+                    "so it cannot be deleted. Please contact the cloud "
+                    "administrator to rectify.") % {
+                'id': share_network_subnet_id}
+            LOG.error(msg)
+            raise exc.HTTPConflict(explanation=msg)
+
+        for share_server in share_network_subnet['share_servers']:
+            self.share_rpcapi.delete_share_server(context, share_server)
+
+        db_api.share_network_subnet_delete(context, share_network_subnet_id)
+        return webob.Response(status_int=http_client.ACCEPTED)
+
+    def _validate_subnet(self, context, share_network_id, az=None):
+        """Validate the az for the given subnet.
+
+        If az is None, the method will search for an existent default subnet.
+        In case of a given AZ, validates if there's an existent subnet for it.
+        """
+        msg = ("Another share network subnet was found in the "
+               "specified availability zone. Only one share network "
+               "subnet is allowed per availability zone for share "
+               "network %s." % share_network_id)
+        if az is None:
+            default_subnet = db_api.share_network_subnet_get_default_subnet(
+                context, share_network_id)
+            if default_subnet is not None:
+                raise exc.HTTPConflict(explanation=msg)
+        else:
+            az_subnet = (
+                db_api.share_network_subnet_get_by_availability_zone_id(
+                    context, share_network_id, az['id'])
+            )
+            # If the 'availability_zone_id' is not None, we found a conflict,
+            # otherwise we just have found the default subnet
+            if az_subnet and az_subnet['availability_zone_id']:
+                raise exc.HTTPConflict(explanation=msg)
+
+    @wsgi.Controller.api_version("2.51")
+    @wsgi.Controller.authorize
+    def create(self, req, share_network_id, body):
+        """Add a new share network subnet into the share network."""
+        context = req.environ['manila.context']
+
+        if not self.is_valid_body(body, 'share-network-subnet'):
+            msg = _("Share Network Subnet is missing from the request body.")
+            raise exc.HTTPBadRequest(explanation=msg)
+
+        data = body['share-network-subnet']
+        data['share_network_id'] = share_network_id
+
+        common.check_net_id_and_subnet_id(data)
+
+        try:
+            db_api.share_network_get(context, share_network_id)
+        except exception.ShareNetworkNotFound as e:
+            raise exc.HTTPNotFound(explanation=e.msg)
+
+        availability_zone = data.pop('availability_zone', None)
+        subnet_az = None
+
+        if availability_zone:
+            try:
+                subnet_az = db_api.availability_zone_get(context,
+                                                         availability_zone)
+            except exception.AvailabilityZoneNotFound:
+                msg = _("The provided availability zone %s does not "
+                        "exist.") % availability_zone
+                raise exc.HTTPBadRequest(explanation=msg)
+
+        self._validate_subnet(context, share_network_id, az=subnet_az)
+
+        try:
+            data['availability_zone_id'] = (
+                subnet_az['id'] if subnet_az is not None else None)
+            share_network_subnet = db_api.share_network_subnet_create(
+                context, data)
+        except db_exception.DBError as e:
+            msg = _('Could not create the share network subnet.')
+            LOG.error(e)
+            raise exc.HTTPInternalServerError(explanation=msg)
+        share_network_subnet = db_api.share_network_subnet_get(
+            context, share_network_subnet['id'])
+        return self._view_builder.build_share_network_subnet(
+            req, share_network_subnet)
+
+    @wsgi.Controller.api_version('2.51')
+    @wsgi.Controller.authorize
+    def show(self, req, share_network_id, share_network_subnet_id):
+        """Show share network subnet."""
+        context = req.environ['manila.context']
+
+        try:
+            db_api.share_network_get(context, share_network_id)
+        except exception.ShareNetworkNotFound as e:
+            raise exc.HTTPNotFound(explanation=e.msg)
+
+        try:
+            share_network_subnet = db_api.share_network_subnet_get(
+                context, share_network_subnet_id)
+        except exception.ShareNetworkSubnetNotFound as e:
+            raise exc.HTTPNotFound(explanation=e.msg)
+
+        return self._view_builder.build_share_network_subnet(
+            req, share_network_subnet)
+
+
+def create_resource():
+    return wsgi.Resource(ShareNetworkSubnetController())

manila/api/v2/share_networks.py

@@ -15,6 +15,7 @@
 
 """The shares api."""
 
+import copy
 from oslo_db import exception as db_exception
 from oslo_log import log
 from oslo_utils import timeutils
@@ -66,6 +67,9 @@ class ShareNetworkController(wsgi.Controller):
         return all([ss['is_auto_deletable'] for ss
                     in share_network['share_servers']])
 
+    def _share_network_contains_subnets(self, share_network):
+        return len(share_network['share_network_subnets']) > 1
+
     def delete(self, req, id):
         """Delete specified share network."""
         context = req.environ['manila.context']
@@ -95,18 +99,29 @@ class ShareNetworkController(wsgi.Controller):
             LOG.error(msg)
             raise exc.HTTPConflict(explanation=msg)
 
-        # NOTE(silvacarlose): Do not allow the deletion of any share server
-        # if one of them has the flag is_auto_deletable = False
-        if not self._all_share_servers_are_auto_deletable(share_network):
-            msg = _("The service cannot determine if there are any "
-                    "non-managed shares on the share network %(id)s, so it "
-                    "cannot be deleted. Please contact the cloud "
-                    "administrator to rectify.") % {'id': id}
+        # NOTE(silvacarlose): Do not allow the deletion of share networks
+        # if it still contains two or more subnets
+        if self._share_network_contains_subnets(share_network):
+            msg = _("The share network %(id)s has more than one subnet "
+                    "attached. Please remove the subnets untill you have one "
+                    "or no subnets remaining.") % {'id': id}
             LOG.error(msg)
             raise exc.HTTPConflict(explanation=msg)
 
-        for share_server in share_network['share_servers']:
-            self.share_rpcapi.delete_share_server(context, share_server)
+        for subnet in share_network['share_network_subnets']:
+            if not self._all_share_servers_are_auto_deletable(subnet):
+                msg = _("The service cannot determine if there are any "
+                        "non-managed shares on the share network subnet "
+                        "%(id)s, so it cannot be deleted. Please contact the "
+                        "cloud administrator to rectify.") % {
+                    'id': subnet['id']}
+                LOG.error(msg)
+                raise exc.HTTPConflict(explanation=msg)
+
+        for subnet in share_network['share_network_subnets']:
+            for share_server in subnet['share_servers']:
+                self.share_rpcapi.delete_share_server(context, share_server)
+
         db_api.share_network_delete(context, id)
 
         try:
@@ -122,6 +137,16 @@ class ShareNetworkController(wsgi.Controller):
                           user_id=share_network['user_id'])
         return webob.Response(status_int=http_client.ACCEPTED)
 
+    def _subnet_has_search_opt(self, key, value, network, exact_value=False):
+        for subnet in network.get('share_network_subnets') or []:
+            if subnet.get(key) == value or (
+                    not exact_value and
+                    value in subnet.get(key.rstrip('~'))
+                    if key.endswith('~') and
+                    subnet.get(key.rstrip('~')) else ()):
+                return True
+        return False
+
     def _get_share_networks(self, req, is_detail=True):
         """Returns a list of share networks."""
         context = req.environ['manila.context']
@@ -179,19 +204,30 @@ class ShareNetworkController(wsgi.Controller):
                     value = int(value)
                 if (req.api_version_request >=
                         api_version.APIVersionRequest("2.36")):
-                    networks = [network for network in networks
-                                if network.get(key) == value or
-                                (value in network.get(key.rstrip('~'))
-                                 if key.endswith('~') and
-                                 network.get(key.rstrip('~')) else ())]
+                    networks = [
+                        network for network in networks
+                        if network.get(key) == value or
+                        self._subnet_has_search_opt(key, value, network) or
+                        (value in network.get(key.rstrip('~'))
+                            if key.endswith('~') and
+                            network.get(key.rstrip('~')) else ())]
                 else:
-                    networks = [network for network in networks
-                                if network.get(key) == value]
+                    networks = [
+                        network for network in networks
+                        if network.get(key) == value or
+                        self._subnet_has_search_opt(key, value, network,
+                                                    exact_value=True)]
 
         limited_list = common.limited(networks, req)
         return self._view_builder.build_share_networks(
             req, limited_list, is_detail)
 
+    def _share_network_subnets_contain_share_servers(self, share_network):
+        for subnet in share_network['share_network_subnets']:
+            if subnet['share_servers'] and len(subnet['share_servers']) > 0:
+                return True
+        return False
+
     def index(self, req):
         """Returns a summary list of share networks."""
         policy.check_policy(req.environ['manila.context'], RESOURCE_NAME,
@@ -223,7 +259,7 @@ class ShareNetworkController(wsgi.Controller):
             msg = _("nova networking is not supported starting in Ocata.")
             raise exc.HTTPBadRequest(explanation=msg)
 
-        if share_network['share_servers']:
+        if self._share_network_subnets_contain_share_servers(share_network):
             for value in update_values:
                 if value not in ['name', 'description']:
                     msg = (_("Cannot update share network %s. It is used by "
@@ -231,8 +267,15 @@ class ShareNetworkController(wsgi.Controller):
                              "fields are available for update") %
                            share_network['id'])
                     raise exc.HTTPForbidden(explanation=msg)
-
         try:
+            if ('neutron_net_id' in update_values or
+                    'neutron_subnet_id' in update_values):
+                subnet = db_api.share_network_subnet_get_default_subnet(
+                    context, id)
+                if subnet:
+                    db_api.share_network_subnet_update(context,
+                                                       subnet['id'],
+                                                       update_values)
             share_network = db_api.share_network_update(context,
                                                         id,
                                                         update_values)
@@ -250,14 +293,36 @@ class ShareNetworkController(wsgi.Controller):
         if not body or RESOURCE_NAME not in body:
             raise exc.HTTPUnprocessableEntity()
 
-        values = body[RESOURCE_NAME]
-        values['project_id'] = context.project_id
-        values['user_id'] = context.user_id
+        share_network_values = body[RESOURCE_NAME]
+        share_network_subnet_values = copy.deepcopy(share_network_values)
+        share_network_values['project_id'] = context.project_id
+        share_network_values['user_id'] = context.user_id
 
-        if 'nova_net_id' in values:
+        if 'nova_net_id' in share_network_values:
             msg = _("nova networking is not supported starting in Ocata.")
             raise exc.HTTPBadRequest(explanation=msg)
 
+        share_network_values.pop('availability_zone', None)
+        share_network_values.pop('neutron_net_id', None)
+        share_network_values.pop('neutron_subnet_id', None)
+
+        if req.api_version_request >= api_version.APIVersionRequest("2.51"):
+            if 'availability_zone' in share_network_subnet_values:
+                try:
+                    az = db_api.availability_zone_get(
+                        context,
+                        share_network_subnet_values['availability_zone'])
+                    share_network_subnet_values['availability_zone_id'] = (
+                        az['id'])
+                    share_network_subnet_values.pop('availability_zone')
+                except exception.AvailabilityZoneNotFound:
+                    msg = (_("The provided availability zone %s does not "
+                             "exist.")
+                           % share_network_subnet_values['availability_zone'])
+                    raise exc.HTTPBadRequest(explanation=msg)
+
+        common.check_net_id_and_subnet_id(share_network_subnet_values)
+
         try:
             reservations = QUOTAS.reserve(context, share_networks=1)
         except exception.OverQuota as e:
@@ -279,13 +344,32 @@ class ShareNetworkController(wsgi.Controller):
                 raise exception.ShareNetworksLimitExceeded(
                     allowed=quotas['share_networks'])
         else:
+            # Tries to create the new share network
             try:
-                share_network = db_api.share_network_create(context, values)
+                share_network = db_api.share_network_create(
+                    context, share_network_values)
+            except db_exception.DBError as e:
+                LOG.exception(e)
+                msg = "Could not create share network."
+                raise exc.HTTPInternalServerError(explanation=msg)
+
+            share_network_subnet_values['share_network_id'] = (
+                share_network['id'])
+            share_network_subnet_values.pop('id', None)
+
+            # Try to create the share network subnet. If it fails, the service
+            # must rollback the share network creation.
+            try:
+                db_api.share_network_subnet_create(
+                    context, share_network_subnet_values)
             except db_exception.DBError:
-                msg = "Could not save supplied data due to database error"
-                raise exc.HTTPBadRequest(explanation=msg)
+                db_api.share_network_delete(context, share_network['id'])
+                msg = _('Could not create share network.')
+                raise exc.HTTPInternalServerError(explanation=msg)
 
             QUOTAS.commit(context, reservations)
+            share_network = db_api.share_network_get(context,
+                                                     share_network['id'])
             return self._view_builder.build_share_network(req, share_network)
 
     def action(self, req, id, body):
@@ -305,7 +389,7 @@ class ShareNetworkController(wsgi.Controller):
         context = req.environ['manila.context']
         policy.check_policy(context, RESOURCE_NAME, 'add_security_service')
         share_network = db_api.share_network_get(context, id)
-        if share_network['share_servers']:
+        if self._share_network_subnets_contain_share_servers(share_network):
             msg = _("Cannot add security services. Share network is used.")
             raise exc.HTTPForbidden(explanation=msg)
         security_service = db_api.security_service_get(
@@ -338,7 +422,8 @@ class ShareNetworkController(wsgi.Controller):
         context = req.environ['manila.context']
         policy.check_policy(context, RESOURCE_NAME, 'remove_security_service')
         share_network = db_api.share_network_get(context, id)
-        if share_network['share_servers']:
+
+        if self._share_network_subnets_contain_share_servers(share_network):
             msg = _("Cannot remove security services. Share network is used.")
             raise exc.HTTPForbidden(explanation=msg)
         try:

manila/api/v2/share_replicas.py

@@ -116,7 +116,6 @@ class ShareReplicationController(wsgi.Controller, wsgi.AdminActionsMixin):
 
         share_id = body.get('share_replica').get('share_id')
         availability_zone = body.get('share_replica').get('availability_zone')
-        share_network_id = body.get('share_replica').get('share_network_id')
 
         if not share_id:
             msg = _("Must provide Share ID to add replica.")
@@ -128,6 +127,8 @@ class ShareReplicationController(wsgi.Controller, wsgi.AdminActionsMixin):
             msg = _("No share exists with ID %s.")
             raise exc.HTTPNotFound(explanation=msg % share_id)
 
+        share_network_id = share_ref.get('share_network_id', None)
+
         try:
             new_replica = self.share_api.create_share_replica(
                 context, share_ref, availability_zone=availability_zone,

manila/api/v2/share_servers.py

@@ -31,6 +31,7 @@ LOG = log.getLogger(__name__)
 
 
 class ShareServerController(share_servers.ShareServerController,
+                            wsgi.Controller,
                             wsgi.AdminActionsMixin):
     """The Share Server API V2 controller for the OpenStack API."""
 
@@ -55,28 +56,42 @@ class ShareServerController(share_servers.ShareServerController,
     def share_server_reset_status(self, req, id, body):
         return self._reset_status(req, id, body)
 
-    @wsgi.Controller.api_version("2.49")
     @wsgi.Controller.authorize('manage_share_server')
-    @wsgi.response(202)
-    def manage(self, req, body):
+    def _manage(self, req, body):
         """Manage a share server."""
+        LOG.debug("Manage Share Server with id: %s", id)
+
         context = req.environ['manila.context']
-        identifier, host, share_network, driver_opts = (
+        identifier, host, share_network, driver_opts, network_subnet = (
             self._validate_manage_share_server_parameters(context, body))
 
         try:
             result = self.share_api.manage_share_server(
-                context, identifier, host, share_network, driver_opts)
+                context, identifier, host, network_subnet, driver_opts)
         except exception.InvalidInput as e:
-            raise exc.HTTPBadRequest(explanation=e)
+            raise exc.HTTPBadRequest(explanation=e.msg)
+        except exception.PolicyNotAuthorized as e:
+            raise exc.HTTPForbidden(explanation=e.msg)
 
         result.project_id = share_network["project_id"]
-        if result.share_network['name']:
-            result.share_network_name = result.share_network['name']
+        result.share_network_id = share_network["id"]
+        if share_network['name']:
+            result.share_network_name = share_network['name']
         else:
-            result.share_network_name = result.share_network_id
+            result.share_network_name = share_network['id']
         return self._view_builder.build_share_server(req, result)
 
+    @wsgi.Controller.api_version('2.51')
+    @wsgi.response(202)
+    def manage(self, req, body):
+        return self._manage(req, body)
+
+    @wsgi.Controller.api_version('2.49')  # noqa
+    @wsgi.response(202)
+    def manage(self, req, body):  # pylint: disable=function-redefined
+        body.get('share_server', {}).pop('share_network_subnet_id', None)
+        return self._manage(req, body)
+
     @wsgi.Controller.authorize('unmanage_share_server')
     def _unmanage(self, req, id, body=None):
         context = req.environ['manila.context']
@@ -91,7 +106,7 @@ class ShareServerController(share_servers.ShareServerController,
             share_server = db_api.share_server_get(
                 context, id)
         except exception.ShareServerNotFound as e:
-            raise exc.HTTPNotFound(explanation=e)
+            raise exc.HTTPNotFound(explanation=e.msg)
 
         allowed_statuses = [constants.STATUS_ERROR, constants.STATUS_ACTIVE,
                             constants.STATUS_MANAGE_ERROR,
@@ -111,7 +126,7 @@ class ShareServerController(share_servers.ShareServerController,
                 context, share_server, force=force)
         except (exception.ShareServerInUse,
                 exception.PolicyNotAuthorized) as e:
-            raise exc.HTTPBadRequest(explanation=e)
+            raise exc.HTTPBadRequest(explanation=e.msg)
 
         return webob.Response(status_int=http_client.ACCEPTED)
 
@@ -141,6 +156,25 @@ class ShareServerController(share_servers.ShareServerController,
         identifier = data['identifier']
         host, share_network_id = data['host'], data['share_network_id']
 
+        network_subnet_id = data.get('share_network_subnet_id')
+        if network_subnet_id:
+            try:
+                network_subnet = db_api.share_network_subnet_get(
+                    context, network_subnet_id)
+            except exception.ShareNetworkSubnetNotFound:
+                msg = _("The share network subnet %s does not "
+                        "exist.") % network_subnet_id
+                raise exc.HTTPBadRequest(explanation=msg)
+        else:
+            network_subnet = db_api.share_network_subnet_get_default_subnet(
+                context, share_network_id)
+
+        if network_subnet is None:
+            msg = _("The share network %s does have a default subnet. Create "
+                    "one or use a specific subnet to manage this share server "
+                    "with API version >= 2.51.") % share_network_id
+            raise exc.HTTPBadRequest(explanation=msg)
+
         if share_utils.extract_host(host, 'pool'):
             msg = _("Host parameter should not contain pool.")
             raise exc.HTTPBadRequest(explanation=msg)
@@ -168,7 +202,7 @@ class ShareServerController(share_servers.ShareServerController,
             msg = _("Driver options must be in dictionary format.")
             raise exc.HTTPBadRequest(explanation=msg)
 
-        return identifier, host, share_network, driver_opts
+        return identifier, host, share_network, driver_opts, network_subnet
 
 
 def create_resource():

manila/api/views/share_network_subnets.py

@@ -0,0 +1,53 @@
+# Copyright 2019 NetApp, Inc.
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+from manila.api import common
+
+
+class ViewBuilder(common.ViewBuilder):
+    """Model a server API response as a python dictionary."""
+
+    _collection_name = 'share_network_subnets'
+
+    def build_share_network_subnet(self, request, share_network_subnet):
+        return {
+            'share_network_subnet': self._build_share_network_subnet_view(
+                request, share_network_subnet)}
+
+    def build_share_network_subnets(self, request, share_network_subnets):
+        return {'share_network_subnets':
+                [self._build_share_network_subnet_view(
+                    request, share_network_subnet)
+                 for share_network_subnet in share_network_subnets]}
+
+    def _build_share_network_subnet_view(self, request, share_network_subnet):
+        sns = {
+            'id': share_network_subnet.get('id'),
+            'availability_zone': share_network_subnet.get('availability_zone'),
+            'share_network_id': share_network_subnet.get('share_network_id'),
+            'share_network_name': share_network_subnet.share_network['name'],
+            'created_at': share_network_subnet.get('created_at'),
+            'segmentation_id': share_network_subnet.get('segmentation_id'),
+            'neutron_subnet_id': share_network_subnet.get('neutron_subnet_id'),
+            'updated_at': share_network_subnet.get('updated_at'),
+            'neutron_net_id': share_network_subnet.get('neutron_net_id'),
+            'ip_version': share_network_subnet.get('ip_version'),
+            'cidr': share_network_subnet.get('cidr'),
+            'network_type': share_network_subnet.get('network_type'),
+            'mtu': share_network_subnet.get('mtu'),
+            'gateway': share_network_subnet.get('gateway')
+        }
+        self.update_versioned_resource_dict(request, sns, share_network_subnet)
+        return sns

manila/api/views/share_networks.py

@@ -20,7 +20,8 @@ class ViewBuilder(common.ViewBuilder):
     """Model a server API response as a python dictionary."""
 
     _collection_name = 'share_networks'
-    _detail_version_modifiers = ["add_gateway", "add_mtu", "add_nova_net_id"]
+    _detail_version_modifiers = ["add_gateway", "add_mtu", "add_nova_net_id",
+                                 "add_subnets"]
 
     def build_share_network(self, request, share_network):
         """View of a share network."""
@@ -34,6 +35,20 @@ class ViewBuilder(common.ViewBuilder):
                     request, share_network, is_detail)
                  for share_network in share_networks]}
 
+    def _update_share_network_info(self, request, share_network):
+        for sns in share_network.get('share_network_subnets') or []:
+            if sns.get('is_default') and sns.get('is_default') is True:
+                share_network.update({
+                    'neutron_net_id': sns.get('neutron_net_id'),
+                    'neutron_subnet_id': sns.get('neutron_subnet_id'),
+                    'network_type': sns.get('network_type'),
+                    'segmentation_id': sns.get('segmentation_id'),
+                    'cidr': sns.get('cidr'),
+                    'ip_version': sns.get('ip_version'),
+                    'gateway': sns.get('gateway'),
+                    'mtu': sns.get('mtu'),
+                })
+
     def _build_share_network_view(self, request, share_network,
                                   is_detail=True):
         sn = {
@@ -41,6 +56,7 @@ class ViewBuilder(common.ViewBuilder):
             'name': share_network.get('name'),
         }
         if is_detail:
+            self._update_share_network_info(request, share_network)
             sn.update({
                 'project_id': share_network.get('project_id'),
                 'created_at': share_network.get('created_at'),
@@ -57,6 +73,30 @@ class ViewBuilder(common.ViewBuilder):
             self.update_versioned_resource_dict(request, sn, share_network)
         return sn
 
+    @common.ViewBuilder.versioned_method("2.51")
+    def add_subnets(self, context, network_dict, network):
+        subnets = [{
+            'id': sns.get('id'),
+            'availability_zone': sns.get('availability_zone'),
+            'created_at': sns.get('created_at'),
+            'updated_at': sns.get('updated_at'),
+            'segmentation_id': sns.get('segmentation_id'),
+            'neutron_net_id': sns.get('neutron_net_id'),
+            'neutron_subnet_id': sns.get('neutron_subnet_id'),
+            'ip_version': sns.get('ip_version'),
+            'cidr': sns.get('cidr'),
+            'network_type': sns.get('network_type'),
+            'mtu': sns.get('mtu'),
+            'gateway': sns.get('gateway'),
+        } for sns in network.get('share_network_subnets')]
+
+        network_dict['share_network_subnets'] = subnets
+        attr_to_remove = [
+            'neutron_net_id', 'neutron_subnet_id', 'network_type',
+            'segmentation_id', 'cidr', 'ip_version', 'gateway', 'mtu']
+        for attr in attr_to_remove:
+            network_dict.pop(attr)
+
     @common.ViewBuilder.versioned_method("2.18")
     def add_gateway(self, context, network_dict, network):
         network_dict['gateway'] = network.get('gateway')

manila/api/views/share_servers.py

@@ -22,6 +22,7 @@ class ViewBuilder(common.ViewBuilder):
     _collection_name = 'share_servers'
     _detail_version_modifiers = [
         "add_is_auto_deletable_and_identifier_fields",
+        "add_share_network_subnet_id_field"
     ]
 
     def build_share_server(self, request, share_server):
@@ -56,11 +57,17 @@ class ViewBuilder(common.ViewBuilder):
             share_server_dict['created_at'] = share_server.created_at
             share_server_dict['backend_details'] = share_server.backend_details
 
-            self.update_versioned_resource_dict(
-                request, share_server_dict, share_server)
+        self.update_versioned_resource_dict(
+            request, share_server_dict, share_server)
 
         return share_server_dict
 
+    @common.ViewBuilder.versioned_method("2.51")
+    def add_share_network_subnet_id_field(
+            self, context, share_server_dict, share_server):
+        share_server_dict['share_network_subnet_id'] = (
+            share_server['share_network_subnet_id'])
+
     @common.ViewBuilder.versioned_method("2.49")
     def add_is_auto_deletable_and_identifier_fields(
             self, context, share_server_dict, share_server):

manila/db/api.py

@@ -848,6 +848,55 @@ def count_share_networks(context, project_id, user_id=None,
 ##################
 
 
+def share_network_subnet_create(context, values):
+    """Create a share network subnet DB record."""
+    return IMPL.share_network_subnet_create(context, values)
+
+
+def share_network_subnet_delete(context, network_subnet_id):
+    """Delete a share network subnet DB record."""
+    return IMPL.share_network_subnet_delete(context, network_subnet_id)
+
+
+def share_network_subnet_update(context, network_subnet_id, values):
+    """Update a share network subnet DB record."""
+    return IMPL.share_network_subnet_update(context, network_subnet_id, values)
+
+
+def share_network_subnet_get(context, network_subnet_id, session=None):
+    """Get requested share network subnet DB record."""
+    return IMPL.share_network_subnet_get(context, network_subnet_id,
+                                         session=session)
+
+
+def share_network_subnet_get_all(context):
+    """Get all share network subnet DB record."""
+    return IMPL.share_network_subnet_get_all(context)
+
+
+def share_network_subnet_get_by_availability_zone_id(context, share_network_id,
+                                                     availability_zone_id):
+    """Get a share network subnet DB record.
+
+    This method returns a subnet DB record for a given share network id and
+    an availability zone. If the 'availability_zone_id' is 'None', a record may
+    be returned and it will represent the default share network subnet.
+    Be aware that if there is no subnet for a specific availability zone id,
+    this method will return the default share network subnet, if it exists.
+    """
+    return IMPL.share_network_subnet_get_by_availability_zone_id(
+        context, share_network_id, availability_zone_id)
+
+
+def share_network_subnet_get_default_subnet(context, share_network_id):
+    """Get the default share network subnet DB record."""
+    return IMPL.share_network_subnet_get_default_subnet(context,
+                                                        share_network_id)
+
+
+##################
+
+
 def network_allocation_create(context, values):
     """Create a network allocation DB record."""
     return IMPL.network_allocation_create(context, values)

manila/db/migrations/alembic/versions/805685098bd2_add_share_network_subnets_table_and_modify_share_servers_table.py

@@ -0,0 +1,231 @@
+# Copyright 2019 NetApp, Inc.
+# All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+"""add_share_network_subnets_table_and_modify_share_networks_and_servers
+
+Revision ID: 805685098bd2
+Revises: 6a3fd2984bc31
+Create Date: 2019-05-09 16:28:41.919714
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = '805685098bd2'
+down_revision = '6a3fd2984bc31'
+
+from alembic import op
+from manila.db.migrations import utils
+from oslo_log import log
+from oslo_utils import uuidutils
+
+import sqlalchemy as sa
+
+LOG = log.getLogger(__name__)
+
+
+def upgrade():
+    # New table
+    try:
+        share_networks_fk_name = (
+            "fk_share_network_subnets_share_network_id_share_networks")
+        availability_zones_fk_name = (
+            "fk_share_network_subnets_availaility_zone_id_availability_zones")
+        share_network_subnets_table = op.create_table(
+            'share_network_subnets',
+            sa.Column('id', sa.String(36), primary_key=True, nullable=False),
+            sa.Column('neutron_net_id', sa.String(36), nullable=True),
+            sa.Column('neutron_subnet_id', sa.String(36), nullable=True),
+            sa.Column('network_type', sa.String(32), nullable=True),
+            sa.Column('cidr', sa.String(64), nullable=True),
+            sa.Column('segmentation_id', sa.Integer, nullable=True),
+            sa.Column('gateway', sa.String(64), nullable=True),
+            sa.Column('mtu', sa.Integer, nullable=True),
+            sa.Column('share_network_id', sa.String(36), sa.ForeignKey(
+                'share_networks.id', name=share_networks_fk_name)),
+            sa.Column('ip_version', sa.Integer, nullable=True),
+            sa.Column('availability_zone_id', sa.String(36),
+                      sa.ForeignKey('availability_zones.id',
+                                    name=availability_zones_fk_name)),
+            sa.Column('created_at', sa.DateTime),
+            sa.Column('updated_at', sa.DateTime),
+            sa.Column('deleted_at', sa.DateTime),
+            sa.Column('deleted', sa.String(36), default='False'),
+            mysql_engine='InnoDB',
+            mysql_charset='utf8'
+        )
+    except Exception:
+        LOG.error("Table |%s| not created!", 'share_network_subnets')
+        raise
+
+    share_serves_fk_name = (
+        "fk_share_servers_share_network_subnet_id_share_network_subnets")
+    op.add_column(
+        'share_servers',
+        sa.Column(
+            'share_network_subnet_id', sa.String(36),
+            sa.ForeignKey('share_network_subnets.id',
+                          name=share_serves_fk_name),
+        )
+    )
+
+    connection = op.get_bind()
+
+    share_networks_table = utils.load_table('share_networks', connection)
+    share_servers_table = utils.load_table('share_servers', connection)
+
+    share_network_subnets = []
+
+    # Get all share_networks and move all their data to share network subnet
+    for share_network in connection.execute(share_networks_table.select()):
+        share_network_subnet = {
+            'id': uuidutils.generate_uuid(),
+            'neutron_net_id': share_network.neutron_net_id,
+            'neutron_subnet_id': share_network.neutron_subnet_id,
+            'network_type': share_network.network_type,
+            'cidr': share_network.cidr,
+            'segmentation_id': share_network.segmentation_id,
+            'gateway': share_network.gateway,
+            'mtu': share_network.mtu,
+            'share_network_id': share_network.id,
+            'ip_version': share_network.ip_version,
+            'created_at': share_network.created_at,
+            'updated_at': share_network.updated_at,
+            'deleted_at': share_network.deleted_at,
+            'deleted': share_network.deleted,
+        }
+        share_network_subnets.append(share_network_subnet)
+
+    # Insertions for the new share network subnets
+    op.bulk_insert(share_network_subnets_table, share_network_subnets)
+
+    # Updates the field share server table with the share network subnet id
+    for sns in share_network_subnets:
+        share_servers = connection.execute(share_servers_table.select().where(
+            share_servers_table.c.share_network_id == sns['share_network_id']
+        ))
+        updated_data = {'share_network_subnet_id': sns['id']}
+        _update_share_servers(share_servers, updated_data, share_servers_table)
+
+    if connection.engine.name == 'mysql':
+        # Drops necessary constraint from share servers table. Only mysql
+        # needs constraint handling. Postgresql/sqlite don't
+        op.drop_constraint("share_servers_ibfk_1", "share_servers",
+                           type_="foreignkey")
+
+    op.drop_column('share_servers', 'share_network_id')
+    op.drop_column('share_networks', 'neutron_net_id')
+    op.drop_column('share_networks', 'neutron_subnet_id')
+    op.drop_column('share_networks', 'network_type')
+    op.drop_column('share_networks', 'segmentation_id')
+    op.drop_column('share_networks', 'gateway')
+    op.drop_column('share_networks', 'mtu')
+    op.drop_column('share_networks', 'cidr')
+    op.drop_column('share_networks', 'ip_version')
+
+
+def _update_share_servers(share_servers, updated_data, share_servers_table):
+    for share_server in share_servers:
+        # pylint: disable=no-value-for-parameter
+        op.execute(
+            share_servers_table.update().where(
+                share_servers_table.c.id == share_server.id,
+            ).values(updated_data)
+        )
+
+
+def retrieve_default_subnet(subnets):
+    # NOTE (silvacarlose): A default subnet is that one which doesn't contain
+    # an availability zone. If all the share networks contain an az, we can
+    # retrieve whichever share network, then we pick up the first.
+    for subnet in subnets:
+        if subnet.availability_zone_id is None:
+            return subnet
+
+    return subnets[0] if subnets is not None else None
+
+
+def downgrade():
+    connection = op.get_bind()
+
+    # Include again the removed fields in the share network table
+    op.add_column('share_networks',
+                  sa.Column('neutron_net_id', sa.String(36), nullable=True))
+    op.add_column('share_networks',
+                  sa.Column('neutron_subnet_id', sa.String(36), nullable=True))
+    op.add_column('share_networks',
+                  sa.Column('network_type', sa.String(32), nullable=True))
+    op.add_column('share_networks',
+                  sa.Column('cidr', sa.String(64), nullable=True))
+    op.add_column('share_networks',
+                  sa.Column('gateway', sa.String(64), nullable=True))
+    op.add_column('share_networks',
+                  sa.Column('mtu', sa.Integer, nullable=True))
+    op.add_column('share_networks',
+                  sa.Column('segmentation_id', sa.Integer, nullable=True))
+    op.add_column('share_networks',
+                  sa.Column('ip_version', sa.Integer, nullable=True))
+
+    # Include again the removed field in the share server table
+    op.add_column('share_servers',
+                  sa.Column('share_network_id', sa.String(36),
+                            sa.ForeignKey('share_networks.id',
+                                          name="share_servers_ibfk_1")))
+
+    share_networks_table = utils.load_table('share_networks', connection)
+    share_servers_table = utils.load_table('share_servers', connection)
+    subnets_table = utils.load_table('share_network_subnets', connection)
+
+    for share_network in connection.execute(share_networks_table.select()):
+        network_subnets = connection.execute(subnets_table.select().where(
+            subnets_table.c.share_network_id == share_network.id))
+        default_subnet = retrieve_default_subnet(network_subnets)
+
+        if default_subnet is not None:
+            op.execute(
+                # pylint: disable=no-value-for-parameter
+                share_networks_table.update().where(
+                    share_networks_table.c.id == share_network.id,
+                ).values({
+                    'neutron_net_id': default_subnet.neutron_net_id,
+                    'neutron_subnet_id': default_subnet.neutron_subnet_id,
+                    'network_type': default_subnet.network_type,
+                    'cidr': default_subnet.cidr,
+                    'gateway': default_subnet.gateway,
+                    'mtu': default_subnet.mtu,
+                    'segmentation_id': default_subnet.segmentation_id,
+                    'ip_version': default_subnet.ip_version,
+                })
+            )
+
+        for network_subnet in network_subnets:
+            share_servers = connection.execute(
+                share_servers_table.select().where(
+                    share_servers_table.c.share_network_subnet_id ==
+                    network_subnet.id))
+            updated_data = {'share_network_id': share_network.id}
+            _update_share_servers(share_servers, updated_data,
+                                  share_servers_table)
+
+    share_serves_fk_name = (
+        "fk_share_servers_share_network_subnet_id_share_network_subnets")
+    if connection.engine.name == 'mysql':
+        op.drop_constraint(share_serves_fk_name, "share_servers",
+                           type_="foreignkey")
+    op.drop_column('share_servers', 'share_network_subnet_id')
+    try:
+        op.drop_table('share_network_subnets')
+    except Exception:
+        LOG.error("Failed to drop 'share_network_subnets' table!")
+        raise

manila/db/sqlalchemy/api.py

@@ -42,7 +42,7 @@ from oslo_utils import uuidutils
 import six
 from sqlalchemy import MetaData
 from sqlalchemy import or_
-from sqlalchemy.orm import joinedload
+from sqlalchemy.orm import joinedload, load_only
 from sqlalchemy.sql.expression import literal
 from sqlalchemy.sql.expression import true
 from sqlalchemy.sql import func
@@ -3396,7 +3396,7 @@ def _network_get_query(context, session=None):
     return (model_query(context, models.ShareNetwork, session=session).
             options(joinedload('share_instances'),
                     joinedload('security_services'),
-                    joinedload('share_servers')))
+                    joinedload('share_network_subnets')))
 
 
 @require_context
@@ -3454,8 +3454,8 @@ def share_network_get_all_by_security_service(context, security_service_id):
             join(models.ShareNetworkSecurityServiceAssociation,
             models.ShareNetwork.id ==
             models.ShareNetworkSecurityServiceAssociation.share_network_id).
-            filter_by(security_service_id=security_service_id, deleted=0).
-            options(joinedload('share_servers')).all())
+            filter_by(security_service_id=security_service_id, deleted=0)
+            .all())
 
 
 @require_context
@@ -3534,13 +3534,103 @@ def count_share_networks(context, project_id, user_id=None,
 ###################
 
 
+@require_context
+def _network_subnet_get_query(context, session=None):
+    if session is None:
+        session = get_session()
+    return (model_query(context, models.ShareNetworkSubnet, session=session).
+            options(joinedload('share_servers')))
+
+
+@require_context
+def share_network_subnet_create(context, values):
+    values = ensure_model_dict_has_id(values)
+
+    network_subnet_ref = models.ShareNetworkSubnet()
+    network_subnet_ref.update(values)
+    session = get_session()
+    with session.begin():
+        network_subnet_ref.save(session=session)
+        return share_network_subnet_get(
+            context, network_subnet_ref['id'], session=session)
+
+
+@require_context
+def share_network_subnet_delete(context, network_subnet_id):
+
+    session = get_session()
+    with session.begin():
+        network_subnet_ref = share_network_subnet_get(context,
+                                                      network_subnet_id,
+                                                      session=session)
+        network_subnet_ref.soft_delete(session=session, update_status=True)
+
+
+@require_context
+@oslo_db_api.wrap_db_retry(max_retries=5, retry_on_deadlock=True)
+def share_network_subnet_update(context, network_subnet_id, values):
+    session = get_session()
+    with session.begin():
+        network_subnet_ref = share_network_subnet_get(context,
+                                                      network_subnet_id,
+                                                      session=session)
+        network_subnet_ref.update(values)
+        network_subnet_ref.save(session=session)
+        return network_subnet_ref
+
+
+@require_context
+def share_network_subnet_get(context, network_subnet_id, session=None):
+    result = (_network_subnet_get_query(context, session)
+              .filter_by(id=network_subnet_id)
+              .first())
+    if result is None:
+        raise exception.ShareNetworkSubnetNotFound(
+            share_network_subnet_id=network_subnet_id)
+    return result
+
+
+@require_context
+def share_network_subnet_get_all(context):
+    return _network_subnet_get_query(context).all()
+
+
+@require_context
+def share_network_subnet_get_all_by_share_network(context, network_id):
+    return _network_subnet_get_query(context).filter_by(
+        share_network_id=network_id).all()
+
+
+@require_context
+def share_network_subnet_get_by_availability_zone_id(
+        context, share_network_id, availability_zone_id):
+    result = (_network_subnet_get_query(context).filter_by(
+        share_network_id=share_network_id,
+        availability_zone_id=availability_zone_id).first())
+    # If a specific subnet wasn't found, try get the default one
+    if availability_zone_id and not result:
+        return (_network_subnet_get_query(context).filter_by(
+            share_network_id=share_network_id,
+            availability_zone_id=None).first())
+    return result
+
+
+@require_context
+def share_network_subnet_get_default_subnet(context, share_network_id):
+    return share_network_subnet_get_by_availability_zone_id(
+        context, share_network_id, availability_zone_id=None)
+
+
+###################
+
+
 def _server_get_query(context, session=None):
     if session is None:
         session = get_session()
     return (model_query(context, models.ShareServer, session=session).
             options(joinedload('share_instances'),
                     joinedload('network_allocations'),
-                    joinedload('share_network')))
+                    joinedload('share_network_subnet')))
 
 
 @require_context
@@ -3632,11 +3722,22 @@ def share_server_search_by_identifier(context, identifier, session=None):
 def share_server_get_all_by_host_and_share_net_valid(context, host,
                                                      share_net_id,
                                                      session=None):
-    result = (_server_get_query(context, session).filter_by(host=host)
-              .filter_by(share_network_id=share_net_id)
+    # Get subnets by share_net_id
+    subnets = (_network_subnet_get_query(context, session)
+               .filter_by(share_network_id=share_net_id)
+               .options(load_only("id"))
+               .all())
+    subnet_ids = [s.id for s in subnets]
+
+    # Retrieve servers by the retrieved subnet ids
+    result = (_server_get_query(context, session)
+              .filter_by(host=host)
+              .filter(models.ShareServer.share_network_subnet_id.in_(
+                      subnet_ids))
               .filter(models.ShareServer.status.in_(
-                      (constants.STATUS_CREATING,
-                       constants.STATUS_ACTIVE))).all())
+                     (constants.STATUS_CREATING,
+                      constants.STATUS_ACTIVE))).all())
+
     if not result:
         filters_description = ('share_network_id is "%(share_net_id)s",'
                                ' host is "%(host)s" and status in'

manila/db/sqlalchemy/models.py

@@ -916,14 +916,6 @@ class ShareNetwork(BASE, ManilaBase):
     deleted = Column(String(36), default='False')
     project_id = Column(String(255), nullable=False)
     user_id = Column(String(255), nullable=False)
-    neutron_net_id = Column(String(36), nullable=True)
-    neutron_subnet_id = Column(String(36), nullable=True)
-    network_type = Column(String(32), nullable=True)
-    segmentation_id = Column(Integer, nullable=True)
-    cidr = Column(String(64), nullable=True)
-    gateway = Column(String(64), nullable=True)
-    mtu = Column(Integer, nullable=True)
-    ip_version = Column(Integer, nullable=True)
     name = Column(String(255), nullable=True)
     description = Column(String(255), nullable=True)
     security_services = orm.relationship(
@@ -945,19 +937,68 @@ class ShareNetwork(BASE, ManilaBase):
         primaryjoin='and_('
                     'ShareNetwork.id == ShareInstance.share_network_id,'
                     'ShareInstance.deleted == "False")')
+    share_network_subnets = orm.relationship(
+        "ShareNetworkSubnet", backref='share_network', lazy='immediate',
+        primaryjoin='and_'
+                    '(ShareNetwork.id == ShareNetworkSubnet.share_network_id,'
+                    'ShareNetworkSubnet.deleted == "False")')
+
+
+class ShareNetworkSubnet(BASE, ManilaBase):
+    """Represents a share network subnet used by some resources."""
+
+    _extra_keys = ['availability_zone']
+
+    __tablename__ = 'share_network_subnets'
+    id = Column(String(36), primary_key=True, nullable=False)
+    neutron_net_id = Column(String(36), nullable=True)
+    neutron_subnet_id = Column(String(36), nullable=True)
+    network_type = Column(String(32), nullable=True)
+    cidr = Column(String(64), nullable=True)
+    segmentation_id = Column(Integer, nullable=True)
+    gateway = Column(String(64), nullable=True)
+    mtu = Column(Integer, nullable=True)
+    deleted = Column(String(36), default='False')
+    share_network_id = Column(String(36), ForeignKey('share_networks.id'),
+                              nullable=False)
+    ip_version = Column(Integer, nullable=True)
+    availability_zone_id = Column(
+        String(36), ForeignKey('availability_zones.id'), nullable=True)
+
     share_servers = orm.relationship(
-        "ShareServer", backref='share_network',
-        primaryjoin='and_(ShareNetwork.id == ShareServer.share_network_id,'
+        "ShareServer", backref='share_network_subnet',
+        lazy='immediate',
+        primaryjoin='and_(ShareNetworkSubnet.id '
+                    '== ShareServer.share_network_subnet_id,'
                     'ShareServer.deleted == "False")')
 
+    _availability_zone = orm.relationship(
+        "AvailabilityZone",
+        lazy='immediate',
+        foreign_keys=availability_zone_id,
+        primaryjoin=(
+            "and_("
+            "ShareNetworkSubnet.availability_zone_id == AvailabilityZone.id, "
+            "AvailabilityZone.deleted == 'False')"))
+
+    @property
+    def availability_zone(self):
+        if self._availability_zone:
+            return self._availability_zone['name']
+
+    @property
+    def is_default(self):
+        return self.availability_zone_id is None
+
 
 class ShareServer(BASE, ManilaBase):
     """Represents share server used by share."""
     __tablename__ = 'share_servers'
     id = Column(String(36), primary_key=True, nullable=False)
     deleted = Column(String(36), default='False')
-    share_network_id = Column(String(36), ForeignKey('share_networks.id'),
-                              nullable=True)
+    share_network_subnet_id = Column(
+        String(36), ForeignKey('share_network_subnets.id'),
+        nullable=True)
     host = Column(String(255), nullable=False)
     is_auto_deletable = Column(Boolean, default=True)
     identifier = Column(String(255), nullable=True)

manila/exception.py

@@ -228,6 +228,11 @@ class ShareNetworkNotFound(NotFound):
     message = _("Share network %(share_network_id)s could not be found.")
 
 
+class ShareNetworkSubnetNotFound(NotFound):
+    message = _("Share network subnet %(share_network_subnet_id)s could not be"
+                " found.")
+
+
 class ShareServerNotFound(NotFound):
     message = _("Share server %(share_server_id)s could not be found.")
 

manila/network/__init__.py

@@ -85,6 +85,14 @@ class NetworkBaseAPI(db_base.Base):
                     "'%s'.") % share_server_id
             raise exception.NetworkBadConfigurationException(reason=msg)
 
+    def _verify_share_network_subnet(self, share_server_id,
+                                     share_network_subnet):
+        if share_network_subnet is None:
+            msg = _("'Share network subnet' is not provided for setting up "
+                    "network interfaces for 'Share server' "
+                    "'%s'.") % share_server_id
+            raise exception.NetworkBadConfigurationException(reason=msg)
+
     def update_network_allocation(self, context, share_server):
         """Update network allocation.
 
@@ -98,7 +106,7 @@ class NetworkBaseAPI(db_base.Base):
 
     @abc.abstractmethod
     def allocate_network(self, context, share_server, share_network=None,
-                         **kwargs):
+                         share_network_subnet=None, **kwargs):
         pass
 
     @abc.abstractmethod
@@ -106,8 +114,9 @@ class NetworkBaseAPI(db_base.Base):
         pass
 
     @abc.abstractmethod
-    def manage_network_allocations(self, context, allocations, share_server,
-                                   share_network=None):
+    def manage_network_allocations(
+            self, context, allocations, share_server, share_network=None,
+            share_network_subnet=None):
         pass
 
     @abc.abstractmethod

manila/network/neutron/neutron_network_plugin.py

@@ -125,19 +125,21 @@ class NeutronNetworkPlugin(network.NetworkBaseAPI):
                                                 **self._neutron_api_kwargs)
         return self._neutron_api
 
-    def _store_neutron_net_info(self, context, share_network):
-        self._save_neutron_network_data(context, share_network)
-        self._save_neutron_subnet_data(context, share_network)
+    def _store_neutron_net_info(self, context, share_network_subnet):
+        self._save_neutron_network_data(context, share_network_subnet)
+        self._save_neutron_subnet_data(context, share_network_subnet)
 
     def allocate_network(self, context, share_server, share_network=None,
-                         **kwargs):
+                         share_network_subnet=None, **kwargs):
         """Allocate network resources using given network information.
 
         Create neutron ports for a given neutron network and subnet,
         create manila db records for allocated neutron ports.
 
         :param context: RequestContext object
+        :param share_server: share server data
         :param share_network: share network data
+        :param share_network_subnet: share network subnet data
         :param kwargs: allocations parameters given by the back-end
                        driver. Supported params:
                        'count' - how many allocations should be created
@@ -149,32 +151,37 @@ class NeutronNetworkPlugin(network.NetworkBaseAPI):
             raise exception.NetworkBadConfigurationException(reason=msg)
 
         self._verify_share_network(share_server['id'], share_network)
-        self._store_neutron_net_info(context, share_network)
+        self._verify_share_network_subnet(share_server['id'],
+                                          share_network_subnet)
+        self._store_neutron_net_info(context, share_network_subnet)
 
         allocation_count = kwargs.get('count', 1)
         device_owner = kwargs.get('device_owner', 'share')
 
         ports = []
         for __ in range(0, allocation_count):
-            ports.append(self._create_port(context, share_server,
-                                           share_network, device_owner))
+            ports.append(self._create_port(
+                         context, share_server, share_network,
+                         share_network_subnet, device_owner))
 
         return ports
 
-    def manage_network_allocations(self, context, allocations, share_server,
-                                   share_network=None):
+    def manage_network_allocations(
+            self, context, allocations, share_server, share_network=None,
+            share_network_subnet=None):
 
-        self._verify_share_network(share_server['id'], share_network)
-        self._store_neutron_net_info(context, share_network)
+        self._verify_share_network_subnet(share_server['id'],
+                                          share_network_subnet)
+        self._store_neutron_net_info(context, share_network_subnet)
 
         # We begin matching the allocations to known neutron ports and
         # finally return the non-consumed allocations
         remaining_allocations = list(allocations)
-
-        fixed_ip_filter = 'subnet_id=' + share_network['neutron_subnet_id']
+        fixed_ip_filter = ('subnet_id=' +
+                           share_network_subnet['neutron_subnet_id'])
 
         port_list = self.neutron_api.list_ports(
-            network_id=share_network['neutron_net_id'],
+            network_id=share_network_subnet['neutron_net_id'],
             device_owner='manila:share',
             fixed_ips=fixed_ip_filter)
 
@@ -189,15 +196,15 @@ class NeutronNetworkPlugin(network.NetworkBaseAPI):
                 'id': selected_port['port']['id'],
                 'share_server_id': share_server['id'],
                 'ip_address': selected_port['allocation'],
-                'gateway': share_network['gateway'],
+                'gateway': share_network_subnet['gateway'],
                 'mac_address': selected_port['port']['mac_address'],
                 'status': constants.STATUS_ACTIVE,
                 'label': self.label,
-                'network_type': share_network.get('network_type'),
-                'segmentation_id': share_network.get('segmentation_id'),
-                'ip_version': share_network['ip_version'],
-                'cidr': share_network['cidr'],
-                'mtu': share_network['mtu'],
+                'network_type': share_network_subnet.get('network_type'),
+                'segmentation_id': share_network_subnet.get('segmentation_id'),
+                'ip_version': share_network_subnet['ip_version'],
+                'cidr': share_network_subnet['cidr'],
+                'mtu': share_network_subnet['mtu'],
             }
 
             # There should not be existing allocations with the same port_id.
@@ -296,37 +303,38 @@ class NeutronNetworkPlugin(network.NetworkBaseAPI):
         for port in ports:
             self._delete_port(context, port)
 
-    def _get_port_create_args(self, share_server, share_network,
+    def _get_port_create_args(self, share_server, share_network_subnet,
                               device_owner):
         return {
-            "network_id": share_network['neutron_net_id'],
-            "subnet_id": share_network['neutron_subnet_id'],
+            "network_id": share_network_subnet['neutron_net_id'],
+            "subnet_id": share_network_subnet['neutron_subnet_id'],
             "device_owner": 'manila:' + device_owner,
             "device_id": share_server.get('id'),
         }
 
-    def _create_port(self, context, share_server, share_network, device_owner):
-        create_args = self._get_port_create_args(share_server, share_network,
-                                                 device_owner)
+    def _create_port(self, context, share_server, share_network,
+                     share_network_subnet, device_owner):
+        create_args = self._get_port_create_args(
+            share_server, share_network_subnet, device_owner)
 
         port = self.neutron_api.create_port(
             share_network['project_id'], **create_args)
 
-        ip_address = self._get_matched_ip_address(port['fixed_ips'],
-                                                  share_network['ip_version'])
+        ip_address = self._get_matched_ip_address(
+            port['fixed_ips'], share_network_subnet['ip_version'])
         port_dict = {
             'id': port['id'],
             'share_server_id': share_server['id'],
             'ip_address': ip_address,
-            'gateway': share_network['gateway'],
+            'gateway': share_network_subnet['gateway'],
             'mac_address': port['mac_address'],
             'status': constants.STATUS_ACTIVE,
             'label': self.label,
-            'network_type': share_network.get('network_type'),
-            'segmentation_id': share_network.get('segmentation_id'),
-            'ip_version': share_network['ip_version'],
-            'cidr': share_network['cidr'],
-            'mtu': share_network['mtu'],
+            'network_type': share_network_subnet.get('network_type'),
+            'segmentation_id': share_network_subnet.get('segmentation_id'),
+            'ip_version': share_network_subnet['ip_version'],
+            'cidr': share_network_subnet['cidr'],
+            'mtu': share_network_subnet['mtu'],
         }
         return self.db.network_allocation_create(context, port_dict)
 
@@ -344,19 +352,19 @@ class NeutronNetworkPlugin(network.NetworkBaseAPI):
         extensions = self.neutron_api.list_extensions()
         return neutron_constants.PROVIDER_NW_EXT in extensions
 
-    def _is_neutron_multi_segment(self, share_network, net_info=None):
+    def _is_neutron_multi_segment(self, share_network_subnet, net_info=None):
         if net_info is None:
             net_info = self.neutron_api.get_network(
-                share_network['neutron_net_id'])
+                share_network_subnet['neutron_net_id'])
         return 'segments' in net_info
 
-    def _save_neutron_network_data(self, context, share_network):
+    def _save_neutron_network_data(self, context, share_network_subnet):
         net_info = self.neutron_api.get_network(
-            share_network['neutron_net_id'])
+            share_network_subnet['neutron_net_id'])
         segmentation_id = None
         network_type = None
 
-        if self._is_neutron_multi_segment(share_network, net_info):
+        if self._is_neutron_multi_segment(share_network_subnet, net_info):
             # we have a multi segment network and need to identify the
             # lowest segment used for binding
             phy_nets = []
@@ -383,26 +391,26 @@ class NeutronNetworkPlugin(network.NetworkBaseAPI):
             'segmentation_id': segmentation_id,
             'mtu':  net_info['mtu'],
         }
-        share_network.update(provider_nw_dict)
+        share_network_subnet.update(provider_nw_dict)
 
         if self.label != 'admin':
-            self.db.share_network_update(
-                context, share_network['id'], provider_nw_dict)
+            self.db.share_network_subnet_update(
+                context, share_network_subnet['id'], provider_nw_dict)
 
-    def _save_neutron_subnet_data(self, context, share_network):
+    def _save_neutron_subnet_data(self, context, share_network_subnet):
         subnet_info = self.neutron_api.get_subnet(
-            share_network['neutron_subnet_id'])
+            share_network_subnet['neutron_subnet_id'])
 
         subnet_values = {
             'cidr': subnet_info['cidr'],
             'gateway': subnet_info['gateway_ip'],
             'ip_version': subnet_info['ip_version']
         }
-        share_network.update(subnet_values)
+        share_network_subnet.update(subnet_values)
 
         if self.label != 'admin':
-            self.db.share_network_update(
-                context, share_network['id'], subnet_values)
+            self.db.share_network_subnet_update(
+                context, share_network_subnet['id'], subnet_values)
 
 
 class NeutronSingleNetworkPlugin(NeutronNetworkPlugin):
@@ -416,36 +424,47 @@ class NeutronSingleNetworkPlugin(NeutronNetworkPlugin):
         self.subnet = self.neutron_api.configuration.neutron_subnet_id
         self._verify_net_and_subnet()
 
-    def _select_proper_share_network(self, context, share_network):
+    def _select_proper_share_network_subnet(self, context,
+                                            share_network_subnet):
         if self.label != 'admin':
-            share_network = self._update_share_network_net_data(
-                context, share_network)
+            share_network_subnet = self._update_share_network_net_data(
+                context, share_network_subnet)
         else:
-            share_network = {
+            share_network_subnet = {
                 'project_id': self.neutron_api.admin_project_id,
                 'neutron_net_id': self.net,
                 'neutron_subnet_id': self.subnet,
             }
-        return share_network
+        return share_network_subnet
 
     def allocate_network(self, context, share_server, share_network=None,
-                         **kwargs):
+                         share_network_subnet=None, **kwargs):
 
-        share_network = self._select_proper_share_network(
-            context, share_network)
+        share_network_subnet = self._select_proper_share_network_subnet(
+            context, share_network_subnet)
+        # Update share network project_id info if needed
+        if share_network_subnet.get('project_id', None) is not None:
+            share_network['project_id'] = share_network_subnet.pop(
+                'project_id')
 
         return super(NeutronSingleNetworkPlugin, self).allocate_network(
-            context, share_server, share_network, **kwargs)
+            context, share_server, share_network, share_network_subnet,
+            **kwargs)
 
-    def manage_network_allocations(self, context, allocations, share_server,
-                                   share_network=None):
-
-        share_network = self._select_proper_share_network(
-            context, share_network)
+    def manage_network_allocations(
+            self, context, allocations, share_server, share_network=None,
+            share_network_subnet=None):
+        share_network_subnet = self._select_proper_share_network_subnet(
+            context, share_network_subnet)
+        # Update share network project_id info if needed
+        if share_network and share_network_subnet.get('project_id', None):
+            share_network['project_id'] = (
+                share_network_subnet.pop('project_id'))
 
         return super(NeutronSingleNetworkPlugin,
                      self).manage_network_allocations(
-            context, allocations, share_server, share_network)
+            context, allocations, share_server, share_network,
+            share_network_subnet)
 
     def _verify_net_and_subnet(self):
         data = dict(net=self.net, subnet=self.subnet)
@@ -460,33 +479,33 @@ class NeutronSingleNetworkPlugin(NeutronNetworkPlugin):
                 "Neutron net and subnet are expected to be both set. "
                 "Got: net=%(net)s and subnet=%(subnet)s." % data)
 
-    def _update_share_network_net_data(self, context, share_network):
+    def _update_share_network_net_data(self, context, share_network_subnet):
         upd = dict()
 
-        if not share_network.get('neutron_net_id') == self.net:
-            if share_network.get('neutron_net_id') is not None:
+        if not share_network_subnet.get('neutron_net_id') == self.net:
+            if share_network_subnet.get('neutron_net_id') is not None:
                 raise exception.NetworkBadConfigurationException(
                     "Using neutron net id different from None or value "
                     "specified in the config is forbidden for "
                     "NeutronSingleNetworkPlugin. Allowed values: (%(net)s, "
                     "None), received value: %(err)s" % {
                         "net": self.net,
-                        "err": share_network.get('neutron_net_id')})
+                        "err": share_network_subnet.get('neutron_net_id')})
             upd['neutron_net_id'] = self.net
-        if not share_network.get('neutron_subnet_id') == self.subnet:
-            if share_network.get('neutron_subnet_id') is not None:
+        if not share_network_subnet.get('neutron_subnet_id') == self.subnet:
+            if share_network_subnet.get('neutron_subnet_id') is not None:
                 raise exception.NetworkBadConfigurationException(
                     "Using neutron subnet id different from None or value "
                     "specified in the config is forbidden for "
                     "NeutronSingleNetworkPlugin. Allowed values: (%(snet)s, "
                     "None), received value: %(err)s" % {
                         "snet": self.subnet,
-                        "err": share_network.get('neutron_subnet_id')})
+                        "err": share_network_subnet.get('neutron_subnet_id')})
             upd['neutron_subnet_id'] = self.subnet
         if upd:
-            share_network = self.db.share_network_update(
-                context, share_network['id'], upd)
-        return share_network
+            share_network_subnet = self.db.share_network_subnet_update(
+                context, share_network_subnet['id'], upd)
+        return share_network_subnet
 
 
 class NeutronBindNetworkPlugin(NeutronNetworkPlugin):
@@ -541,11 +560,11 @@ class NeutronBindNetworkPlugin(NeutronNetworkPlugin):
             "ports": inactive_ports}
         raise exception.NetworkBindException(msg)
 
-    def _get_port_create_args(self, share_server, share_network,
+    def _get_port_create_args(self, share_server, share_network_subnet,
                               device_owner):
         arguments = super(
             NeutronBindNetworkPlugin, self)._get_port_create_args(
-                share_network, share_network, device_owner)
+            share_server, share_network_subnet, device_owner)
         arguments['host_id'] = self.config.neutron_host_id
         arguments['binding:vnic_type'] = self.config.neutron_vnic_type
         if self.binding_profiles:
@@ -561,7 +580,7 @@ class NeutronBindNetworkPlugin(NeutronNetworkPlugin):
                 "local_link_information": local_links}
         return arguments
 
-    def _save_neutron_network_data(self, context, share_network):
+    def _save_neutron_network_data(self, context, share_network_subnet):
         """Store the Neutron network info.
 
         In case of dynamic multi segments the segment is determined while
@@ -571,36 +590,37 @@ class NeutronBindNetworkPlugin(NeutronNetworkPlugin):
         Instead, multi segments network will wait until ports are bound and
         then store network information (see allocate_network()).
         """
-        if self._is_neutron_multi_segment(share_network):
+        if self._is_neutron_multi_segment(share_network_subnet):
             # In case of dynamic multi segment the segment is determined while
             # binding the port, only mtu is known and already needed
-            self._save_neutron_network_mtu(context, share_network)
+            self._save_neutron_network_mtu(context, share_network_subnet)
             return
         super(NeutronBindNetworkPlugin, self)._save_neutron_network_data(
-            context, share_network)
+            context, share_network_subnet)
 
-    def _save_neutron_network_mtu(self, context, share_network):
+    def _save_neutron_network_mtu(self, context, share_network_subnet):
         """Store the Neutron network mtu.
 
         In case of dynamic multi segments only the mtu needs storing before
         binding the port.
         """
         net_info = self.neutron_api.get_network(
-            share_network['neutron_net_id'])
+            share_network_subnet['neutron_net_id'])
 
         mtu_dict = {
             'mtu':  net_info['mtu'],
         }
-        share_network.update(mtu_dict)
+        share_network_subnet.update(mtu_dict)
 
         if self.label != 'admin':
-            self.db.share_network_update(
-                context, share_network['id'], mtu_dict)
+            self.db.share_network_subnet_update(
+                context, share_network_subnet['id'], mtu_dict)
 
     def allocate_network(self, context, share_server, share_network=None,
-                         **kwargs):
+                         share_network_subnet=None, **kwargs):
         ports = super(NeutronBindNetworkPlugin, self).allocate_network(
-            context, share_server, share_network, **kwargs)
+            context, share_server, share_network, share_network_subnet,
+            **kwargs)
         # If vnic type is 'normal' we expect a neutron agent to bind the
         # ports. This action requires a vnic to be spawned by the driver.
         # Therefore we do not wait for the port binding here, but
@@ -609,16 +629,18 @@ class NeutronBindNetworkPlugin(NeutronNetworkPlugin):
         # order to update the ports with the correct binding.
         if self.config.neutron_vnic_type != 'normal':
             self._wait_for_ports_bind(ports, share_server)
-            if self._is_neutron_multi_segment(share_network):
+            if self._is_neutron_multi_segment(share_network_subnet):
                 # update segment information after port bind
                 super(NeutronBindNetworkPlugin,
-                      self)._save_neutron_network_data(context, share_network)
+                      self)._save_neutron_network_data(context,
+                                                       share_network_subnet)
                 for num, port in enumerate(ports):
                     port_info = {
-                        'network_type': share_network['network_type'],
-                        'segmentation_id': share_network['segmentation_id'],
-                        'cidr': share_network['cidr'],
-                        'ip_version': share_network['ip_version'],
+                        'network_type': share_network_subnet['network_type'],
+                        'segmentation_id':
+                            share_network_subnet['segmentation_id'],
+                        'cidr': share_network_subnet['cidr'],
+                        'ip_version': share_network_subnet['ip_version'],
                     }
                     ports[num] = self.db.network_allocation_update(
                         context, port['id'], port_info)

manila/network/standalone_network_plugin.py

@@ -264,8 +264,8 @@ class StandaloneNetworkPlugin(network.NetworkBaseAPI):
                     'available': len(ips)}
         raise exception.NetworkBadConfigurationException(reason=msg)
 
-    def _save_network_info(self, context, share_network):
-        """Update share-network with plugin specific data."""
+    def _save_network_info(self, context, share_network_subnet):
+        """Update share-network-subnet with plugin specific data."""
         data = {
             'network_type': self.network_type,
             'segmentation_id': self.segmentation_id,
@@ -274,14 +274,15 @@ class StandaloneNetworkPlugin(network.NetworkBaseAPI):
             'ip_version': self.ip_version,
             'mtu': self.mtu,
         }
-        share_network.update(data)
+        share_network_subnet.update(data)
         if self.label != 'admin':
-            self.db.share_network_update(context, share_network['id'], data)
+            self.db.share_network_subnet_update(
+                context, share_network_subnet['id'], data)
 
     @utils.synchronized(
         "allocate_network_for_standalone_network_plugin", external=True)
     def allocate_network(self, context, share_server, share_network=None,
-                         **kwargs):
+                         share_network_subnet=None, **kwargs):
         """Allocate network resources using one dedicated network.
 
         This one has interprocess lock to avoid concurrency in creation of
@@ -289,10 +290,11 @@ class StandaloneNetworkPlugin(network.NetworkBaseAPI):
         """
         allocation_count = kwargs.get('count', 1)
         if self.label != 'admin':
-            self._verify_share_network(share_server['id'], share_network)
+            self._verify_share_network(share_server['id'],
+                                       share_network_subnet)
         else:
-            share_network = share_network or {}
-        self._save_network_info(context, share_network)
+            share_network_subnet = share_network_subnet or {}
+        self._save_network_info(context, share_network_subnet)
         allocations = []
         ip_addresses = self._get_available_ips(context, allocation_count)
         for ip_address in ip_addresses:
@@ -301,12 +303,12 @@ class StandaloneNetworkPlugin(network.NetworkBaseAPI):
                 'ip_address': ip_address,
                 'status': constants.STATUS_ACTIVE,
                 'label': self.label,
-                'network_type': share_network['network_type'],
-                'segmentation_id': share_network['segmentation_id'],
-                'cidr': share_network['cidr'],
-                'gateway': share_network['gateway'],
-                'ip_version': share_network['ip_version'],
-                'mtu': share_network['mtu'],
+                'network_type': share_network_subnet['network_type'],
+                'segmentation_id': share_network_subnet['segmentation_id'],
+                'cidr': share_network_subnet['cidr'],
+                'gateway': share_network_subnet['gateway'],
+                'ip_version': share_network_subnet['ip_version'],
+                'mtu': share_network_subnet['mtu'],
             }
             allocations.append(
                 self.db.network_allocation_create(context, data))
@@ -323,12 +325,14 @@ class StandaloneNetworkPlugin(network.NetworkBaseAPI):
         self.deallocate_network(context, share_server_id)
 
     def manage_network_allocations(self, context, allocations, share_server,
-                                   share_network=None):
+                                   share_network=None,
+                                   share_network_subnet=None):
         if self.label != 'admin':
-            self._verify_share_network(share_server['id'], share_network)
+            self._verify_share_network_subnet(share_server['id'],
+                                              share_network_subnet)
         else:
-            share_network = share_network or {}
-        self._save_network_info(context, share_network)
+            share_network_subnet = share_network_subnet or {}
+        self._save_network_info(context, share_network_subnet)
 
         # We begin matching the allocations to known neutron ports and
         # finally return the non-consumed allocations
@@ -350,12 +354,12 @@ class StandaloneNetworkPlugin(network.NetworkBaseAPI):
                 'ip_address': allocation,
                 'status': constants.STATUS_ACTIVE,
                 'label': self.label,
-                'network_type': share_network['network_type'],
-                'segmentation_id': share_network['segmentation_id'],
-                'cidr': share_network['cidr'],
-                'gateway': share_network['gateway'],
-                'ip_version': share_network['ip_version'],
-                'mtu': share_network['mtu'],
+                'network_type': share_network_subnet['network_type'],
+                'segmentation_id': share_network_subnet['segmentation_id'],
+                'cidr': share_network_subnet['cidr'],
+                'gateway': share_network_subnet['gateway'],
+                'ip_version': share_network_subnet['ip_version'],
+                'mtu': share_network_subnet['mtu'],
             }
             self.db.network_allocation_create(context, data)
             remaining_allocations.remove(allocation)

manila/policies/__init__.py

@@ -34,6 +34,7 @@ from manila.policies import share_group_types_spec
 from manila.policies import share_instance
 from manila.policies import share_instance_export_location
 from manila.policies import share_network
+from manila.policies import share_network_subnet
 from manila.policies import share_replica
 from manila.policies import share_replica_export_location
 from manila.policies import share_server
@@ -70,6 +71,7 @@ def list_rules():
         share_replica.list_rules(),
         share_replica_export_location.list_rules(),
         share_network.list_rules(),
+        share_network_subnet.list_rules(),
         security_service.list_rules(),
         share_export_location.list_rules(),
         share_instance.list_rules(),

manila/policies/share_network_subnet.py

@@ -0,0 +1,70 @@
+# Copyright 2019 NetApp, Inc.
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+from oslo_policy import policy
+
+from manila.policies import base
+
+BASE_POLICY_NAME = 'share_network_subnet:%s'
+
+
+share_network_subnet_policies = [
+    policy.DocumentedRuleDefault(
+        name=BASE_POLICY_NAME % 'create',
+        check_str=base.RULE_DEFAULT,
+        description="Create a new share network subnet.",
+        operations=[
+            {
+                'method': 'POST',
+                'path': '/share-networks/{share_network_id}/subnets'
+            }
+        ]),
+    policy.DocumentedRuleDefault(
+        name=BASE_POLICY_NAME % 'delete',
+        check_str=base.RULE_DEFAULT,
+        description="Delete a share network subnet.",
+        operations=[
+            {
+                'method': 'DELETE',
+                'path': '/share-networks/{share_network_id}/subnets/'
+                        '{share_network_subnet_id}'
+            }
+        ]),
+    policy.DocumentedRuleDefault(
+        name=BASE_POLICY_NAME % 'show',
+        check_str=base.RULE_DEFAULT,
+        description="Shows a share network subnet.",
+        operations=[
+            {
+                'method': 'GET',
+                'path': '/share-networks/{share_network_id}/subnets/'
+                        '{share_network_subnet_id}'
+            }
+        ]),
+    policy.DocumentedRuleDefault(
+        name=BASE_POLICY_NAME % 'index',
+        check_str=base.RULE_DEFAULT,
+        description="Get all share network subnets.",
+        operations=[
+            {
+                'method': 'GET',
+                'path': '/share-networks/{share_network_id}/subnets'
+            }
+        ]),
+]
+
+
+def list_rules():
+    return share_network_subnet_policies

manila/share/api.py

@@ -66,6 +66,16 @@ class API(base.Base):
         self.share_rpcapi = share_rpcapi.ShareAPI()
         self.access_helper = access.ShareInstanceAccess(self.db, None)
 
+    def _get_all_availability_zones_with_subnets(self, context,
+                                                 share_network_id):
+        compatible_azs = []
+        for az in self.db.availability_zone_get_all(context):
+            if self.db.share_network_subnet_get_by_availability_zone_id(
+                    context, share_network_id=share_network_id,
+                    availability_zone_id=az['id']):
+                compatible_azs.append(az['name'])
+        return compatible_azs
+
     def create(self, context, share_proto, size, name, description,
                snapshot_id=None, availability_zone=None, metadata=None,
                share_network_id=None, share_type=None, is_public=False,
@@ -227,6 +237,25 @@ class API(base.Base):
             options['source_share_group_snapshot_member_id'] = (
                 share_group_snapshot_member['id'])
 
+        # NOTE(dviroel): If a target availability zone was not provided, the
+        # scheduler will receive a list with all availability zones that
+        # contains a subnet within the selected share network.
+        if share_network_id and not availability_zone:
+            azs_with_subnet = self._get_all_availability_zones_with_subnets(
+                context, share_network_id)
+            if not availability_zones:
+                availability_zones = azs_with_subnet
+            else:
+                availability_zones = (
+                    [az for az in availability_zones if az in azs_with_subnet])
+            if not availability_zones:
+                msg = _(
+                    "The share network is not supported within any requested "
+                    "availability zone. Check the share type's "
+                    "'availability_zones' extra-spec and the availability "
+                    "zones of the share network subnets")
+                raise exception.InvalidInput(message=msg)
+
         try:
             share = self.db.share_create(context, options,
                                          create_share_instance=False)
@@ -484,11 +513,45 @@ class API(base.Base):
                        'az': availability_zone}
             raise exception.InvalidShare(message=msg % payload)
 
+        if share_network_id:
+            if availability_zone:
+                try:
+                    az = self.db.availability_zone_get(context,
+                                                       availability_zone)
+                except exception.AvailabilityZoneNotFound:
+                    msg = _("Share replica cannot be created because the "
+                            "specified availability zone does not exist.")
+                    raise exception.InvalidInput(message=msg)
+                if self.db.share_network_subnet_get_by_availability_zone_id(
+                        context, share_network_id, az.get('id')) is None:
+                    msg = _("Share replica cannot be created because the "
+                            "share network is not available within the "
+                            "specified availability zone.")
+                    raise exception.InvalidShare(message=msg)
+            else:
+                # NOTE(dviroel): If a target availability zone was not
+                # provided, the scheduler will receive a list with all
+                # availability zones that contains subnets within the
+                # selected share network.
+                azs_subnet = self._get_all_availability_zones_with_subnets(
+                    context, share_network_id)
+                if not type_azs:
+                    type_azs = azs_subnet
+                else:
+                    type_azs = (
+                        [az for az in type_azs if az in azs_subnet])
+                if not type_azs:
+                    msg = _(
+                        "The share network is not supported within any "
+                        "requested  availability zone. Check the share type's "
+                        "'availability_zones' extra-spec and the availability "
+                        "zones of the share network subnets")
+                    raise exception.InvalidInput(message=msg)
+
         if share['replication_type'] == constants.REPLICATION_TYPE_READABLE:
             cast_rules_to_readonly = True
         else:
             cast_rules_to_readonly = False
-
         request_spec, share_replica = (
             self.create_share_instance_and_get_request_spec(
                 context, share, availability_zone=availability_zone,
@@ -641,7 +704,9 @@ class API(base.Base):
             if share_server['status'] != constants.STATUS_ACTIVE:
                 msg = _("Share Server specified is not active.")
                 raise exception.InvalidShareServer(message=msg)
-            share_data['share_network_id'] = share_server['share_network_id']
+            subnet = self.db.share_network_subnet_get(
+                context, share_server['share_network_subnet_id'])
+            share_data['share_network_id'] = subnet['share_network_id']
 
         share_data.update({
             'user_id': context.user_id,
@@ -1019,7 +1084,7 @@ class API(base.Base):
         self.share_rpcapi.delete_share_server(context, server)
 
     def manage_share_server(
-            self, context, identifier, host, share_network, driver_opts):
+            self, context, identifier, host, share_net_subnet, driver_opts):
         """Manage a share server."""
 
         try:
@@ -1037,7 +1102,7 @@ class API(base.Base):
 
         values = {
             'host': host,
-            'share_network_id': share_network['id'],
+            'share_network_subnet_id': share_net_subnet['id'],
             'status': constants.STATUS_MANAGING,
             'is_auto_deletable': False,
             'identifier': identifier,

manila/share/driver.py

@@ -843,14 +843,15 @@ class ShareDriver(object):
                                                              share_server)
 
     def allocate_network(self, context, share_server, share_network,
-                         count=None, **kwargs):
+                         share_network_subnet, count=None, **kwargs):
         """Allocate network resources using given network information."""
         if count is None:
             count = self.get_network_allocations_number()
         if count:
             kwargs.update(count=count)
             self.network_api.allocate_network(
-                context, share_server, share_network, **kwargs)
+                context, share_server, share_network=share_network,
+                share_network_subnet=share_network_subnet, **kwargs)
 
     def allocate_admin_network(self, context, share_server, count=None,
                                **kwargs):

manila/share/manager.py

@@ -23,6 +23,7 @@ import copy
 import datetime
 import functools
 import hashlib
+from operator import xor
 
 from oslo_config import cfg
 from oslo_log import log
@@ -45,7 +46,7 @@ from manila.message import message_field
 from manila import quota
 from manila.share import access
 from manila.share import api
-import manila.share.configuration
+from manila.share import configuration
 from manila.share import drivers_private_data
 from manila.share import migration
 from manila.share import rpcapi as share_rpcapi
@@ -213,7 +214,7 @@ class ShareManager(manager.SchedulerDependentManager):
 
     def __init__(self, share_driver=None, service_name=None, *args, **kwargs):
         """Load the driver from args, or from flags."""
-        self.configuration = manila.share.configuration.Configuration(
+        self.configuration = configuration.Configuration(
             share_manager_opts,
             config_group=service_name)
         super(ShareManager, self).__init__(service_name='share',
@@ -525,13 +526,11 @@ class ShareManager(manager.SchedulerDependentManager):
                     " should be provided. ")
             raise ValueError(msg)
 
-        parent_share_server = None
-
         def error(msg, *args):
             LOG.error(msg, *args)
             self.db.share_instance_update(context, share_instance['id'],
                                           {'status': constants.STATUS_ERROR})
-
+        parent_share_server = None
         if snapshot:
             parent_share_server_id = (
                 snapshot['share']['instance']['share_server_id'])
@@ -553,9 +552,23 @@ class ShareManager(manager.SchedulerDependentManager):
                 raise exception.InvalidShareServer(
                     share_server_id=parent_share_server
                 )
-
-        if parent_share_server and not share_network_id:
-            share_network_id = parent_share_server['share_network_id']
+        share_network_subnet_id = None
+        if share_network_id:
+            share_network_subnet = (
+                self.db.share_network_subnet_get_by_availability_zone_id(
+                    context, share_network_id,
+                    availability_zone_id=share_instance.get(
+                        'availability_zone_id')))
+            if not share_network_subnet:
+                raise exception.ShareNetworkSubnetNotFound(
+                    share_network_subnet_id=None)
+            share_network_subnet_id = share_network_subnet['id']
+        elif parent_share_server:
+            share_network_subnet_id = (
+                parent_share_server['share_network_subnet_id'])
+            share_network_subnet = self.db.share_network_subnet_get(
+                context, share_network_subnet_id)
+            share_network_id = share_network_subnet['share_network_id']
 
         def get_available_share_servers():
             if parent_share_server:
@@ -566,7 +579,7 @@ class ShareManager(manager.SchedulerDependentManager):
                         context, self.host, share_network_id)
                 )
 
-        @utils.synchronized("share_manager_%s" % share_network_id,
+        @utils.synchronized("share_manager_%s" % share_network_subnet_id,
                             external=True)
         def _wrapped_provide_share_server_for_share():
             try:
@@ -595,7 +608,7 @@ class ShareManager(manager.SchedulerDependentManager):
                     context,
                     {
                         'host': self.host,
-                        'share_network_id': share_network_id,
+                        'share_network_subnet_id': share_network_subnet_id,
                         'status': constants.STATUS_CREATING,
                     }
                 )
@@ -689,7 +702,9 @@ class ShareManager(manager.SchedulerDependentManager):
 
         return share_server['id']
 
-    def _provide_share_server_for_share_group(self, context, share_network_id,
+    def _provide_share_server_for_share_group(self, context,
+                                              share_network_id,
+                                              share_network_subnet_id,
                                               share_group_ref,
                                               share_group_snapshot=None):
         """Gets or creates share_server and updates share group with its id.
@@ -707,6 +722,10 @@ class ShareManager(manager.SchedulerDependentManager):
         :param context: Current context
         :param share_network_id: Share network where existing share server
                                  should be found or created.
+        :param share_network_subnet_id: Share network subnet where
+                                        existing share server should be found
+                                        or created. If not specified, the
+                                        default subnet will be used.
         :param share_group_ref: Share Group model
         :param share_group_snapshot: Optional -- ShareGroupSnapshot model.  If
                                      supplied, driver will use it to choose
@@ -757,7 +776,7 @@ class ShareManager(manager.SchedulerDependentManager):
                     context,
                     {
                         'host': self.host,
-                        'share_network_id': share_network_id,
+                        'share_network_subnet_id': share_network_subnet_id,
                         'status': constants.STATUS_CREATING
                     }
                 )
@@ -1831,7 +1850,6 @@ class ShareManager(manager.SchedulerDependentManager):
                              request_spec=None, filter_properties=None):
         """Create a share replica."""
         context = context.elevated()
-
         share_replica = self.db.share_replica_get(
             context, share_replica_id, with_share_data=True,
             with_share_server=True)
@@ -1847,7 +1865,6 @@ class ShareManager(manager.SchedulerDependentManager):
             self.db.share_replicas_get_available_active_replica(
                 context, share_replica['share_id'], with_share_data=True,
                 with_share_server=True))
-
         if not _active_replica:
             self.db.share_replica_update(
                 context, share_replica['id'],
@@ -1868,9 +1885,8 @@ class ShareManager(manager.SchedulerDependentManager):
         # We need the share_network_id in case of
         # driver_handles_share_server=True
         share_network_id = share_replica.get('share_network_id', None)
-
-        if (share_network_id and
-                not self.driver.driver_handles_share_servers):
+        if xor(bool(share_network_id),
+               self.driver.driver_handles_share_servers):
             self.db.share_replica_update(
                 context, share_replica['id'],
                 {'status': constants.STATUS_ERROR,
@@ -1883,8 +1899,8 @@ class ShareManager(manager.SchedulerDependentManager):
                 resource_id=share_replica['id'],
                 detail=message_field.Detail.UNEXPECTED_NETWORK)
             raise exception.InvalidDriverMode(
-                "Driver does not expect share-network to be provided "
-                "with current configuration.")
+                "The share-network value provided does not match with the "
+                "current driver configuration.")
 
         if share_network_id:
             try:
@@ -2608,12 +2624,14 @@ class ShareManager(manager.SchedulerDependentManager):
             msg = ("Since share %(share)s has been un-managed from share "
                    "server %(server)s. This share server must be removed "
                    "manually, either by un-managing or by deleting it. The "
-                   "share network %(network)s cannot be deleted unless this "
-                   "share server has been removed.")
+                   "share network subnet %(subnet)s and share network "
+                   "%(network) cannot be deleted unless this share server has "
+                   "been removed.")
             msg_args = {
                 'share': share_id,
                 'server': share_server['id'],
-                'network': share_server['share_network_id']
+                'subnet': share_server['share_network_subnet_id'],
+                'network': share_instance['share_network_id']
             }
             LOG.warning(msg, msg_args)
 
@@ -2698,10 +2716,11 @@ class ShareManager(manager.SchedulerDependentManager):
 
         server = self.db.share_server_get(context, share_server_id)
 
-        share_network = self.db.share_network_get(
-            context, server['share_network_id'])
-
         try:
+            share_network_subnet = self.db.share_network_subnet_get(
+                context, server['share_network_subnet_id'])
+            share_network = self.db.share_network_get(
+                context, share_network_subnet['share_network_id'])
 
             number_allocations = (
                 self.driver.get_network_allocations_number())
@@ -2733,7 +2752,7 @@ class ShareManager(manager.SchedulerDependentManager):
                         self.driver.network_api.
                         manage_network_allocations(
                             context, remaining_allocations, server,
-                            share_network))
+                            share_network, share_network_subnet))
 
                     # We require that all allocations are managed, else we
                     # may have problems deleting this share server
@@ -3578,7 +3597,8 @@ class ShareManager(manager.SchedulerDependentManager):
         self._report_driver_status(context)
         self._publish_service_capabilities(context)
 
-    def _form_server_setup_info(self, context, share_server, share_network):
+    def _form_server_setup_info(self, context, share_server, share_network,
+                                share_network_subnet):
         # Network info is used by driver for setting up share server
         # and getting server info on share creation.
         network_allocations = self.db.network_allocations_get_for_share_server(
@@ -3592,30 +3612,34 @@ class ShareManager(manager.SchedulerDependentManager):
         # They should be removed right after no one uses them.
         network_info = {
             'server_id': share_server['id'],
-            'segmentation_id': share_network['segmentation_id'],
-            'cidr': share_network['cidr'],
-            'neutron_net_id': share_network['neutron_net_id'],
-            'neutron_subnet_id': share_network['neutron_subnet_id'],
+            'segmentation_id': share_network_subnet['segmentation_id'],
+            'cidr': share_network_subnet['cidr'],
+            'neutron_net_id': share_network_subnet['neutron_net_id'],
+            'neutron_subnet_id': share_network_subnet['neutron_subnet_id'],
             'security_services': share_network['security_services'],
             'network_allocations': network_allocations,
             'admin_network_allocations': admin_network_allocations,
             'backend_details': share_server.get('backend_details'),
-            'network_type': share_network['network_type'],
+            'network_type': share_network_subnet['network_type'],
         }
         return network_info
 
     def _setup_server(self, context, share_server, metadata=None):
         try:
+            share_network_subnet = share_server['share_network_subnet']
+            share_network_subnet_id = share_network_subnet['id']
+            share_network_id = share_network_subnet['share_network_id']
             share_network = self.db.share_network_get(
-                context, share_server['share_network_id'])
-            self.driver.allocate_network(context, share_server, share_network)
+                context, share_network_id)
+            self.driver.allocate_network(context, share_server, share_network,
+                                         share_network_subnet)
             self.driver.allocate_admin_network(context, share_server)
 
-            # Get share_network again in case it was updated.
-            share_network = self.db.share_network_get(
-                context, share_server['share_network_id'])
+            # Get share_network_subnet in case it was updated.
+            share_network_subnet = self.db.share_network_subnet_get(
+                context, share_network_subnet_id)
             network_info = self._form_server_setup_info(
-                context, share_server, share_network)
+                context, share_server, share_network, share_network_subnet)
             self._validate_segmentation_id(network_info)
 
             # NOTE(vponomaryov): Save security services data to share server
@@ -3735,7 +3759,7 @@ class ShareManager(manager.SchedulerDependentManager):
     def delete_share_server(self, context, share_server):
 
         @utils.synchronized(
-            "share_manager_%s" % share_server['share_network_id'])
+            "share_manager_%s" % share_server['share_network_subnet_id'])
         def _wrapped_delete_share_server():
             # NOTE(vponomaryov): Verify that there are no dependent shares.
             # Without this verification we can get here exception in next case:
@@ -3944,7 +3968,8 @@ class ShareManager(manager.SchedulerDependentManager):
         if parent_share_server_id and self.driver.driver_handles_share_servers:
             share_server = self.db.share_server_get(context,
                                                     parent_share_server_id)
-            share_network_id = share_server['share_network_id']
+            share_network_subnet = share_server['share_network_subnet']
+            share_network_id = share_network_subnet['share_network_id']
 
         if share_network_id and not self.driver.driver_handles_share_servers:
             self.db.share_group_update(
@@ -3954,10 +3979,17 @@ class ShareManager(manager.SchedulerDependentManager):
             raise exception.InvalidInput(reason=msg)
 
         if not share_server and share_network_id:
+
+            availability_zone_id = self._get_az_for_share_group(
+                context, share_group_ref)
+            subnet = self.db.share_network_subnet_get_by_availability_zone_id(
+                context, share_network_id, availability_zone_id)
+
             try:
                 share_server, share_group_ref = (
                     self._provide_share_server_for_share_group(
-                        context, share_network_id, share_group_ref,
+                        context, share_network_id, subnet.get('id'),
+                        share_group_ref,
                         share_group_snapshot=snap_ref,
                     )
                 )

manila/tests/api/fakes.py

@@ -270,20 +270,6 @@ fixture_valid_reset_status_body = (
     ({'reset_status': {'status': 'migrating_to'}}, '2.7'),
 )
 
-share_network_id = '5dfe0898-e2a1-4740-9177-81c7d26713b0'
-share_network = {
-    'name': 'share-net-fake',
-    'share_network_id': '5dfe0898-e2a1-4740-9177-81c7d26713b0',
-    'project_id': '5dfe0898-e2a1-4740-9177-81c7d26713b0'
-}
-SHARE_SERVER = {
-    'share_network': share_network,
-    'share_network_id': 'c5b3a865-56d0-4d88-abe5-879965e099c9',
-    'host': host,
-    'id': 'c39bb9ae-16a5-40f2-a24f-1cf3f549d3d3',
-    'status': constants.STATUS_ACTIVE
-}
-
 
 def mock_fake_admin_check(context, resource_name, action, *args, **kwargs):
     if context.is_admin:

manila/tests/api/openstack/test_wsgi.py

@@ -150,14 +150,14 @@ class RequestTest(test.TestCase):
                          mock.Mock(return_value=max_version))
         self.mock_object(api_version, 'min_api_version',
                          mock.Mock(return_value=min_version))
-        headers = {'X-OpenStack-Manila-API-Version': '2.50'}
+        headers = {'X-OpenStack-Manila-API-Version': '2.51'}
         request = wsgi.Request.blank(
             'https://openstack.acme.com/v2/shares', method='GET',
             headers=headers, script_name='/v2/shares')
 
         self.assertRaises(exception.InvalidGlobalAPIVersion,
                           request.set_api_version_request)
-        self.assertEqual(api_version.APIVersionRequest('2.50'),
+        self.assertEqual(api_version.APIVersionRequest('2.51'),
                          request.api_version_request)
 
     @ddt.data('', '/share', '/v1', '/v2/shares', '/v1.1/', '/share/v1',

manila/tests/api/test_common.py

@@ -328,6 +328,21 @@ class MiscFunctionsTest(test.TestCase):
         policy.check_policy.assert_called_once_with(
             'fake_context', 'share', 'set_public_share', do_raise=False)
 
+    @ddt.data(({}, True),
+              ({'neutron_net_id': 'fake_nn_id'}, False),
+              ({'neutron_subnet_id': 'fake_sn_id'}, False),
+              ({'neutron_net_id': 'fake_nn_id',
+                'neutron_subnet_id': 'fake_sn_id'}, True))
+    @ddt.unpack
+    def test__check_net_id_and_subnet_id(self, body, expected):
+        if not expected:
+            self.assertRaises(webob.exc.HTTPBadRequest,
+                              common.check_net_id_and_subnet_id,
+                              body)
+        else:
+            result = common.check_net_id_and_subnet_id(body)
+            self.assertIsNone(result)
+
 
 @ddt.ddt
 class ViewBuilderTest(test.TestCase):

manila/tests/api/v1/test_security_service.py

@@ -13,6 +13,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+import ddt
 import mock
 from six.moves.urllib import parse
 import webob
@@ -25,6 +26,7 @@ from manila import test
 from manila.tests.api import fakes
 
 
+@ddt.ddt
 class ShareApiTest(test.TestCase):
     """Share Api Test."""
     def setUp(self):
@@ -81,6 +83,21 @@ class ShareApiTest(test.TestCase):
             }, ]
         }
 
+        self.fake_share_network_list_with_share_servers = [{
+            'id': 'fake_sn_id',
+            'share_network_subnets': [{
+                'id': 'fake_sns_id',
+                'share_servers': [{'id': 'fake_ss_id'}]
+            }]
+        }]
+        self.fake_share_network_list_without_share_servers = [{
+            'id': 'fake_sn_id',
+            'share_network_subnets': [{
+                'id': 'fake_sns_id',
+                'share_servers': []
+            }]
+        }]
+
     def _stop_started_patcher(self, patcher):
         if hasattr(patcher, 'is_local'):
             patcher.stop()
@@ -163,10 +180,11 @@ class ShareApiTest(test.TestCase):
         self.mock_object(security_service.policy, 'check_policy')
         db.security_service_get = mock.Mock(return_value=new)
         db.security_service_update = mock.Mock(return_value=updated)
+        fake_sns = {'id': 'fake_sns_id', 'share_servers': ['fake_ss']}
         db.share_network_get_all_by_security_service = mock.Mock(
             return_value=[{
                 'id': 'fake_id',
-                'share_servers': 'fake_share_server'
+                'share_network_subnets': [fake_sns]
             }])
         body = {"security_service": {"name": "new"}}
         req = fakes.HTTPRequest.blank('/security_service/1')
@@ -187,10 +205,11 @@ class ShareApiTest(test.TestCase):
         self.mock_object(security_service.policy, 'check_policy')
         db.security_service_get = mock.Mock(return_value=new)
         db.security_service_update = mock.Mock(return_value=updated)
+        fake_sns = {'id': 'fake_sns_id', 'share_servers': ['fake_ss']}
         db.share_network_get_all_by_security_service = mock.Mock(
             return_value=[{
                 'id': 'fake_id',
-                'share_servers': 'fake_share_server'
+                'share_network_subnets': [fake_sns]
             }])
         body = {"security_service": {"description": "new"}}
         req = fakes.HTTPRequest.blank('/security_service/1')
@@ -209,8 +228,9 @@ class ShareApiTest(test.TestCase):
                        mock.Mock())
     def test_security_service_update_invalid_keys_sh_server_exists(self):
         self.mock_object(security_service.policy, 'check_policy')
+        fake_sns = {'id': 'fake_sns_id', 'share_servers': ['fake_ss']}
         db.share_network_get_all_by_security_service.return_value = [
-            {'id': 'fake_id', 'share_servers': 'fake_share_servers'},
+            {'id': 'fake_id', 'share_network_subnets': [fake_sns]},
         ]
         db.security_service_get.return_value = self.ss_active_directory.copy()
         body = {'security_service': {'user_id': 'new_user'}}
@@ -234,8 +254,9 @@ class ShareApiTest(test.TestCase):
                        mock.Mock())
     def test_security_service_update_valid_keys_sh_server_exists(self):
         self.mock_object(security_service.policy, 'check_policy')
+        fake_sns = {'id': 'fake_sns_id', 'share_servers': ['fake_ss']}
         db.share_network_get_all_by_security_service.return_value = [
-            {'id': 'fake_id', 'share_servers': 'fake_share_servers'},
+            {'id': 'fake_id', 'share_network_subnets': [fake_sns]},
         ]
         old = self.ss_active_directory.copy()
         updated = self.ss_active_directory.copy()
@@ -265,6 +286,36 @@ class ShareApiTest(test.TestCase):
                       security_service.RESOURCE_NAME, 'update', old)
         ])
 
+    @mock.patch.object(db, 'security_service_get', mock.Mock())
+    def test_security_service_update_has_share_servers(self):
+        db.security_service_get = mock.Mock()
+        self.mock_object(
+            self.controller, '_share_servers_dependent_on_sn_exist',
+            mock.Mock(return_value=True))
+        body = {"security_service": {"type": "ldap"}}
+
+        req = fakes.HTTPRequest.blank('/security_services/1')
+        self.assertRaises(webob.exc.HTTPForbidden,
+                          self.controller.update,
+                          req,
+                          1,
+                          body)
+
+    @ddt.data(True, False)
+    def test_security_service_update_share_server_dependent_exists(self,
+                                                                   expected):
+        req = fakes.HTTPRequest.blank('/security_services/1')
+        context = req.environ['manila.context']
+        db.security_service_get = mock.Mock()
+        network = (self.fake_share_network_list_with_share_servers if expected
+                   else self.fake_share_network_list_without_share_servers)
+        db.share_network_get_all_by_security_service = mock.Mock(
+            return_value=network)
+
+        result = self.controller._share_servers_dependent_on_sn_exist(
+            context, 'fake_id')
+        self.assertEqual(expected, result)
+
     def test_security_service_list(self):
         db.security_service_get_all_by_project = mock.Mock(
             return_value=[self.ss_active_directory.copy()])

manila/tests/api/v1/test_share_servers.py

@@ -13,9 +13,11 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+import ddt
 import mock
 from webob import exc
 
+from manila.api.openstack import api_version_request as api_version
 from manila.api.v1 import share_servers
 from manila.common import constants
 from manila import context
@@ -31,23 +33,43 @@ fake_share_server_list = {
             'status': constants.STATUS_ACTIVE,
             'updated_at': None,
             'host': 'fake_host',
-            'share_network_id': 'fake_sn_id',
             'share_network_name': 'fake_sn_name',
+            'share_network_id': 'fake_sn_id',
+            'share_network_subnet_id': 'fake_sns_id',
             'project_id': 'fake_project_id',
             'id': 'fake_server_id',
+            'is_auto_deletable': False,
+            'identifier': 'fake_id'
         },
         {
             'status': constants.STATUS_ERROR,
             'updated_at': None,
             'host': 'fake_host_2',
-            'share_network_id': 'fake_sn_id_2',
             'share_network_name': 'fake_sn_id_2',
+            'share_network_id': 'fake_sn_id_2',
+            'share_network_subnet_id': 'fake_sns_id_2',
             'project_id': 'fake_project_id_2',
             'id': 'fake_server_id_2',
+            'is_auto_deletable': True,
+            'identifier': 'fake_id_2'
         },
     ]
 }
 
+fake_share_network_get_list = {
+    'share_networks': [
+        {
+            'name': 'fake_sn_name',
+            'id': 'fake_sn_id',
+            'project_id': 'fake_project_id',
+        },
+        {
+            'name': None,
+            'id': 'fake_sn_id_2',
+            'project_id': 'fake_project_id_2',
+        }
+    ]
+}
 
 fake_share_server_get_result = {
     'share_server': {
@@ -57,12 +79,15 @@ fake_share_server_get_result = {
         'host': 'fake_host',
         'share_network_name': 'fake_sn_name',
         'share_network_id': 'fake_sn_id',
+        'share_network_subnet_id': 'fake_sns_id',
         'project_id': 'fake_project_id',
         'id': 'fake_server_id',
         'backend_details': {
             'fake_key_1': 'fake_value_1',
             'fake_key_2': 'fake_value_2',
-        }
+        },
+        'is_auto_deletable': False,
+        'identifier': 'fake_id'
     }
 }
 
@@ -88,13 +113,14 @@ class FakeShareServer(object):
             self.created_at = kwargs.get('created_at', None)
         self.updated_at = kwargs.get('updated_at', None)
         self.host = kwargs.get('host', 'fake_host')
-        self.share_network = kwargs.get('share_network', {
-            'name': 'fake_sn_name', 'id': 'fake_sn_id',
-            'project_id': 'fake_project_id'})
-        self.share_network_id = kwargs.get('share_network_id',
-                                           self.share_network['id'])
+        self.share_network_subnet = kwargs.get('share_network_subnet', {
+            'id': 'fake_sns_id', 'share_network_id': 'fake_sn_id'})
+        self.share_network_subnet_id = kwargs.get(
+            'share_network_subnet_id', self.share_network_subnet['id'])
         self.status = kwargs.get('status', constants.STATUS_ACTIVE)
-        self.project_id = self.share_network['project_id']
+        self.project_id = 'fake_project_id'
+        self.identifier = kwargs.get('identifier', 'fake_id')
+        self.is_auto_deletable = kwargs.get('is_auto_deletable', False)
         self.backend_details = share_server_backend_details
 
     def __getitem__(self, item):
@@ -106,10 +132,12 @@ def fake_share_server_get_all():
         FakeShareServer(),
         FakeShareServer(id='fake_server_id_2',
                         host='fake_host_2',
-                        share_network={
-                            'name': None,
-                            'id': 'fake_sn_id_2',
-                            'project_id': 'fake_project_id_2'},
+                        share_network_subnet={
+                            'id': 'fake_sns_id_2',
+                            'share_network_id': 'fake_sn_id_2',
+                            },
+                        identifier='fake_id_2',
+                        is_auto_deletable=True,
                         status=constants.STATUS_ERROR)
     ]
     return fake_share_servers
@@ -136,15 +164,10 @@ class FakeRequestWithProjectId(FakeRequestAdmin):
     GET = {'project_id': fake_share_server_get_all()[0].project_id}
 
 
-class FakeRequestWithShareNetworkName(FakeRequestAdmin):
+class FakeRequestWithShareNetworkSubnetId(FakeRequestAdmin):
     GET = {
-        'share_network': fake_share_server_get_all()[0].share_network['name'],
-    }
-
-
-class FakeRequestWithShareNetworkId(FakeRequestAdmin):
-    GET = {
-        'share_network': fake_share_server_get_all()[0].share_network['id'],
+        'share_network_subnet_id':
+            fake_share_server_get_all()[0].share_network_subnet_id,
     }
 
 
@@ -152,6 +175,7 @@ class FakeRequestWithFakeFilter(FakeRequestAdmin):
     GET = {'fake_key': 'fake_value'}
 
 
+@ddt.ddt
 class ShareServerAPITest(test.TestCase):
 
     def setUp(self):
@@ -163,15 +187,20 @@ class ShareServerAPITest(test.TestCase):
         self.mock_object(db_api, 'share_server_get_all',
                          mock.Mock(return_value=fake_share_server_get_all()))
 
-    def _prepare_request(self, url, use_admin_context):
+    def _prepare_request(self, url, use_admin_context,
+                         version=api_version._MAX_API_VERSION):
         request = fakes.HTTPRequest.blank(url,
-                                          use_admin_context=use_admin_context)
+                                          use_admin_context=use_admin_context,
+                                          version=version)
         ctxt = request.environ['manila.context']
         return request, ctxt
 
     def test_index_no_filters(self):
         request, ctxt = self._prepare_request(url='/v2/share-servers/',
                                               use_admin_context=True)
+        self.mock_object(db_api, 'share_network_get', mock.Mock(
+            side_effect=[fake_share_network_get_list['share_networks'][0],
+                         fake_share_network_get_list['share_networks'][1]]))
         result = self.controller.index(request)
         policy.check_policy.assert_called_once_with(
             ctxt, self.resource_name, 'index')
@@ -183,6 +212,9 @@ class ShareServerAPITest(test.TestCase):
             url='/index?host=%s'
                 % fake_share_server_list['share_servers'][0]['host'],
             use_admin_context=True)
+        self.mock_object(db_api, 'share_network_get', mock.Mock(
+            side_effect=[fake_share_network_get_list['share_networks'][0],
+                         fake_share_network_get_list['share_networks'][1]]))
         result = self.controller.index(request)
         policy.check_policy.assert_called_once_with(
             ctxt, self.resource_name, 'index')
@@ -194,6 +226,9 @@ class ShareServerAPITest(test.TestCase):
         request, ctxt = self._prepare_request(url='/index?status=%s' %
                                                   constants.STATUS_ERROR,
                                               use_admin_context=True)
+        self.mock_object(db_api, 'share_network_get', mock.Mock(
+            side_effect=[fake_share_network_get_list['share_networks'][0],
+                         fake_share_network_get_list['share_networks'][1]]))
         result = self.controller.index(request)
         policy.check_policy.assert_called_once_with(
             ctxt, self.resource_name, 'index')
@@ -206,10 +241,14 @@ class ShareServerAPITest(test.TestCase):
             url='/index?project_id=%s'
                 % fake_share_server_get_all()[0].project_id,
             use_admin_context=True)
+        self.mock_object(db_api, 'share_network_get', mock.Mock(
+            side_effect=[fake_share_network_get_list['share_networks'][0],
+                         fake_share_network_get_list['share_networks'][1]]))
         result = self.controller.index(request)
         policy.check_policy.assert_called_once_with(
             ctxt, self.resource_name, 'index')
         db_api.share_server_get_all.assert_called_once_with(ctxt)
+
         self.assertEqual([fake_share_server_list['share_servers'][0]],
                          result['share_servers'])
 
@@ -218,6 +257,9 @@ class ShareServerAPITest(test.TestCase):
             url='/index?host=%s'
                 % fake_share_server_list['share_servers'][0]['host'],
             use_admin_context=True)
+        self.mock_object(db_api, 'share_network_get', mock.Mock(
+            side_effect=[fake_share_network_get_list['share_networks'][0],
+                         fake_share_network_get_list['share_networks'][1]]))
         result = self.controller.index(request)
         policy.check_policy.assert_called_once_with(
             ctxt, self.resource_name, 'index')
@@ -228,8 +270,11 @@ class ShareServerAPITest(test.TestCase):
     def test_index_share_network_filter_by_id(self):
         request, ctxt = self._prepare_request(
             url='/index?share_network=%s'
-                % fake_share_server_get_all()[0].share_network['id'],
+                % fake_share_network_get_list['share_networks'][0]['id'],
             use_admin_context=True)
+        self.mock_object(db_api, 'share_network_get', mock.Mock(
+            side_effect=[fake_share_network_get_list['share_networks'][0],
+                         fake_share_network_get_list['share_networks'][1]]))
         result = self.controller.index(request)
         policy.check_policy.assert_called_once_with(
             ctxt, self.resource_name, 'index')
@@ -240,16 +285,57 @@ class ShareServerAPITest(test.TestCase):
     def test_index_fake_filter(self):
         request, ctxt = self._prepare_request(url='/index?fake_key=fake_value',
                                               use_admin_context=True)
+        self.mock_object(db_api, 'share_network_get', mock.Mock(
+            side_effect=[fake_share_network_get_list['share_networks'][0],
+                         fake_share_network_get_list['share_networks'][1]]))
         result = self.controller.index(request)
         policy.check_policy.assert_called_once_with(
             ctxt, self.resource_name, 'index')
         db_api.share_server_get_all.assert_called_once_with(ctxt)
         self.assertEqual(0, len(result['share_servers']))
 
+    def test_index_share_network_not_found(self):
+        request, ctxt = self._prepare_request(
+            url='/index?identifier=%s'
+                % fake_share_server_get_all()[0].identifier,
+            use_admin_context=True)
+        self.mock_object(
+            db_api, 'share_network_get',
+            mock.Mock(side_effect=exception.ShareNetworkNotFound(
+                share_network_id='fake')))
+
+        result = self.controller.index(request)
+        db_api.share_server_get_all.assert_called_once_with(ctxt)
+        policy.check_policy.assert_called_once_with(
+            ctxt, self.resource_name, 'index')
+        exp_share_server = fake_share_server_list['share_servers'][0].copy()
+        exp_share_server['project_id'] = ''
+        exp_share_server['share_network_name'] = ''
+        self.assertEqual([exp_share_server],
+                         result['share_servers'])
+
+    def test_index_share_network_not_found_filter_project(self):
+        request, ctxt = self._prepare_request(
+            url='/index?project_id=%s'
+                % fake_share_server_get_all()[0].project_id,
+            use_admin_context=True)
+        self.mock_object(
+            db_api, 'share_network_get',
+            mock.Mock(side_effect=exception.ShareNetworkNotFound(
+                share_network_id='fake')))
+
+        result = self.controller.index(request)
+        db_api.share_server_get_all.assert_called_once_with(ctxt)
+        policy.check_policy.assert_called_once_with(
+            ctxt, self.resource_name, 'index')
+        self.assertEqual(0, len(result['share_servers']))
+
     def test_show(self):
         self.mock_object(db_api, 'share_server_get',
                          mock.Mock(return_value=fake_share_server_get()))
         request, ctxt = self._prepare_request('/show', use_admin_context=True)
+        self.mock_object(db_api, 'share_network_get', mock.Mock(
+            return_value=fake_share_network_get_list['share_networks'][0]))
         result = self.controller.show(
             request,
             fake_share_server_get_result['share_server']['id'])
@@ -260,6 +346,36 @@ class ShareServerAPITest(test.TestCase):
         self.assertEqual(fake_share_server_get_result['share_server'],
                          result['share_server'])
 
+    @ddt.data(
+        {'share_server_side_effect': exception.ShareServerNotFound(
+            share_server_id="foo"),
+            'share_net_side_effect': mock.Mock()},
+        {'share_server_side_effect': mock.Mock(
+            return_value=fake_share_server_get()),
+            'share_net_side_effect': exception.ShareNetworkNotFound(
+                share_network_id="foo")})
+    @ddt.unpack
+    def test_show_server_not_found(self, share_server_side_effect,
+                                   share_net_side_effect):
+        self.mock_object(db_api, 'share_server_get',
+                         mock.Mock(side_effect=share_server_side_effect))
+        request, ctxt = self._prepare_request('/show', use_admin_context=True)
+        self.mock_object(db_api, 'share_network_get', mock.Mock(
+            side_effect=share_net_side_effect))
+        self.assertRaises(
+            exc.HTTPNotFound, self.controller.show, request,
+            fake_share_server_get_result['share_server']['id'])
+
+        policy.check_policy.assert_called_once_with(
+            ctxt, self.resource_name, 'show')
+        db_api.share_server_get.assert_called_once_with(
+            ctxt, fake_share_server_get_result['share_server']['id'])
+        if isinstance(share_net_side_effect, exception.ShareNetworkNotFound):
+            exp_share_net_id = (fake_share_server_get()
+                                .share_network_subnet['share_network_id'])
+            db_api.share_network_get.assert_called_once_with(
+                ctxt, exp_share_net_id)
+
     def test_details(self):
         self.mock_object(db_api, 'share_server_get',
                          mock.Mock(return_value=fake_share_server_get()))
@@ -274,6 +390,21 @@ class ShareServerAPITest(test.TestCase):
         self.assertEqual(fake_share_server_backend_details_get_result,
                          result)
 
+    def test_details_share_server_not_found(self):
+        share_server_id = 'fake'
+        self.mock_object(
+            db_api, 'share_server_get',
+            mock.Mock(side_effect=exception.ShareServerNotFound(
+                share_server_id=share_server_id)))
+        self.assertRaises(exc.HTTPNotFound,
+                          self.controller.details,
+                          FakeRequestAdmin,
+                          share_server_id)
+        policy.check_policy.assert_called_once_with(
+            CONTEXT, self.resource_name, 'details')
+        db_api.share_server_get.assert_called_once_with(
+            CONTEXT, share_server_id)
+
     def test_delete_active_server(self):
         share_server = FakeShareServer(status=constants.STATUS_ACTIVE)
         self.mock_object(db_api, 'share_server_get',

manila/tests/api/v1/test_shares.py

@@ -239,6 +239,9 @@ class ShareAPITest(test.TestCase):
         self.mock_object(share_api.API, 'create', create_mock)
         self.mock_object(share_api.API, 'get_share_network', mock.Mock(
             return_value={'id': 'fakenetid'}))
+        self.mock_object(
+            db, 'share_network_subnet_get_by_availability_zone_id',
+            mock.Mock(return_value={'id': 'fakesubnetid'}))
 
         body = {"share": copy.deepcopy(shr)}
         req = fakes.HTTPRequest.blank('/shares')
@@ -249,6 +252,7 @@ class ShareAPITest(test.TestCase):
         expected = self._get_expected_share_detailed_response(shr)
         expected['share'].pop('snapshot_support')
         self.assertEqual(expected, res_dict)
+        # pylint: disable=unsubscriptable-object
         self.assertEqual("fakenetid",
                          create_mock.call_args[1]['share_network_id'])
 
@@ -312,6 +316,8 @@ class ShareAPITest(test.TestCase):
             return_value=parent_share))
         self.mock_object(share_api.API, 'get_share_network', mock.Mock(
             return_value={'id': parent_share_net}))
+        self.mock_object(
+            db, 'share_network_subnet_get_by_availability_zone_id')
 
         body = {"share": copy.deepcopy(shr)}
         req = fakes.HTTPRequest.blank('/shares')
@@ -323,6 +329,7 @@ class ShareAPITest(test.TestCase):
         expected = self._get_expected_share_detailed_response(shr)
         expected['share'].pop('snapshot_support')
         self.assertEqual(expected, res_dict)
+        # pylint: disable=unsubscriptable-object
         self.assertEqual(parent_share_net,
                          create_mock.call_args[1]['share_network_id'])
 
@@ -356,6 +363,8 @@ class ShareAPITest(test.TestCase):
             return_value=parent_share))
         self.mock_object(share_api.API, 'get_share_network', mock.Mock(
             return_value={'id': parent_share_net}))
+        self.mock_object(
+            db, 'share_network_subnet_get_by_availability_zone_id')
 
         body = {"share": copy.deepcopy(shr)}
         req = fakes.HTTPRequest.blank('/shares')
@@ -367,6 +376,7 @@ class ShareAPITest(test.TestCase):
         expected = self._get_expected_share_detailed_response(shr)
         expected['share'].pop('snapshot_support')
         self.assertEqual(expected, res_dict)
+        # pylint: disable=unsubscriptable-object
         self.assertEqual(parent_share_net,
                          create_mock.call_args[1]['share_network_id'])
 
@@ -425,6 +435,8 @@ class ShareAPITest(test.TestCase):
             return_value=parent_share))
         self.mock_object(share_api.API, 'get_share_network', mock.Mock(
             return_value={'id': parent_share_net}))
+        self.mock_object(
+            db, 'share_network_subnet_get_by_availability_zone_id')
 
         body = {"share": copy.deepcopy(shr)}
         req = fakes.HTTPRequest.blank('/shares', version=microversion)
@@ -436,6 +448,7 @@ class ShareAPITest(test.TestCase):
         expected = self._get_expected_share_detailed_response(shr)
         expected['share'].pop('snapshot_support')
         self.assertDictEqual(expected, res_dict)
+        # pylint: disable=unsubscriptable-object
         self.assertEqual(parent_share_net,
                          create_mock.call_args[1]['share_network_id'])
 
@@ -478,6 +491,28 @@ class ShareAPITest(test.TestCase):
                           req,
                           body)
 
+    @ddt.data((exception.ShareNetworkNotFound(share_network_id='fake'),
+               webob.exc.HTTPNotFound),
+              (mock.Mock(), webob.exc.HTTPBadRequest))
+    @ddt.unpack
+    def test_share_create_invalid_subnet(self, share_network_side_effect,
+                                         exception_to_raise):
+        fake_share_with_sn = copy.deepcopy(self.share)
+        fake_share_with_sn['share_network_id'] = 'fakenetid'
+        self.mock_object(db, 'share_network_get',
+                         mock.Mock(side_effect=share_network_side_effect))
+        self.mock_object(
+            db, 'share_network_subnet_get_by_availability_zone_id',
+            mock.Mock(return_value=None))
+
+        body = {"share": fake_share_with_sn}
+
+        req = fakes.HTTPRequest.blank('/shares')
+        self.assertRaises(exception_to_raise,
+                          self.controller.create,
+                          req,
+                          body)
+
     def test_share_show(self):
         req = fakes.HTTPRequest.blank('/shares/1')
         expected = self._get_expected_share_detailed_response()

manila/tests/api/v2/test_share_network_subnets.py

@@ -0,0 +1,481 @@
+# Copyright 2019 NetApp, Inc.
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+import copy
+import ddt
+import mock
+from oslo_db import exception as db_exception
+
+from manila.api import common
+from manila.api.v2 import share_network_subnets
+from manila.db import api as db_api
+from manila import exception
+from manila import policy
+from manila import test
+from manila.tests.api import fakes
+from manila.tests import db_utils
+from webob import exc
+
+fake_az = {
+    'id': 'ae525e12-07e8-4ddc-a2fd-4a89ad4a65ff',
+    'name': 'fake_az_name'
+}
+
+fake_default_subnet = {
+    'neutron_net_id': 'fake_nn_id',
+    'neutron_subnet_id': 'fake_nsn_id',
+    'availability_zone_id': None
+}
+
+fake_subnet_with_az = {
+    'neutron_net_id': 'fake_nn_id',
+    'neutron_subnet_id': 'fake_nsn_id',
+    'availability_zone_id': 'fake_az_id'
+}
+
+
+@ddt.ddt
+class ShareNetworkSubnetControllerTest(test.TestCase):
+    """Share network subnet api test"""
+
+    def setUp(self):
+        super(ShareNetworkSubnetControllerTest, self).setUp()
+        self.controller = share_network_subnets.ShareNetworkSubnetController()
+        self.mock_policy_check = self.mock_object(
+            policy, 'check_policy', mock.Mock(return_value=True))
+        self.resource_name = self.controller.resource_name
+        self.mock_az_get = self.mock_object(db_api, 'availability_zone_get',
+                                            mock.Mock(return_value=fake_az))
+        self.share_network = db_utils.create_share_network(
+            name='fake_network', id='fake_sn_id')
+        self.share_server = db_utils.create_share_server(
+            share_network_subnet_id='fake_sns_id')
+        self.subnet = db_utils.create_share_network_subnet(
+            share_network_id=self.share_network['id'])
+        self.share = db_utils.create_share()
+
+    def test_share_network_subnet_delete(self):
+        req = fakes.HTTPRequest.blank('/subnets/%s' % self.subnet['id'],
+                                      version="2.51")
+        context = req.environ['manila.context']
+
+        mock_sns_get = self.mock_object(
+            db_api, 'share_network_subnet_get',
+            mock.Mock(return_value=self.subnet))
+        mock_all_get_all_shares_by_ss = self.mock_object(
+            db_api, 'share_instances_get_all_by_share_server',
+            mock.Mock(return_value=[]))
+        mock_all_ss_are_auto_deletable = self.mock_object(
+            self.controller, '_all_share_servers_are_auto_deletable',
+            mock.Mock(return_value=True))
+        mock_delete_share_server = self.mock_object(
+            self.controller.share_rpcapi, 'delete_share_server')
+        mock_subnet_delete = self.mock_object(db_api,
+                                              'share_network_subnet_delete')
+
+        result = self.controller.delete(req, self.share_network['id'],
+                                        self.subnet['id'])
+
+        self.assertEqual(202, result.status_int)
+        mock_sns_get.assert_called_once_with(
+            context, self.subnet['id'])
+        mock_all_get_all_shares_by_ss.assert_called_once_with(
+            context, self.subnet['share_servers'][0].id
+        )
+        mock_all_ss_are_auto_deletable.assert_called_once_with(
+            self.subnet)
+        mock_delete_share_server.assert_called_once_with(
+            context, self.subnet['share_servers'][0])
+        mock_subnet_delete.assert_called_once_with(
+            context, self.subnet['id'])
+        policy.check_policy.assert_called_once_with(
+            context, self.resource_name, 'delete')
+
+    def test_share_network_subnet_delete_network_not_found(self):
+        req = fakes.HTTPRequest.blank('/subnets/%s' % self.subnet['id'],
+                                      version="2.51")
+        context = req.environ['manila.context']
+
+        mock_sn_get = self.mock_object(
+            db_api, 'share_network_get',
+            mock.Mock(side_effect=exception.ShareNetworkNotFound(
+                share_network_id=self.share_network['id']
+            )))
+
+        self.assertRaises(exc.HTTPNotFound,
+                          self.controller.delete,
+                          req,
+                          self.share_network['id'],
+                          self.subnet['id'])
+        mock_sn_get.assert_called_once_with(
+            context, self.share_network['id'])
+        self.mock_policy_check.assert_called_once_with(
+            context, self.resource_name, 'delete')
+
+    def test_share_network_subnet_delete_subnet_not_found(self):
+        req = fakes.HTTPRequest.blank('/subnets/%s' % self.subnet['id'],
+                                      version="2.51")
+        context = req.environ['manila.context']
+
+        mock_sns_get = self.mock_object(
+            db_api, 'share_network_subnet_get',
+            mock.Mock(side_effect=exception.ShareNetworkSubnetNotFound(
+                share_network_subnet_id=self.subnet['id']
+            )))
+
+        self.assertRaises(exc.HTTPNotFound,
+                          self.controller.delete,
+                          req,
+                          self.share_network['id'],
+                          self.subnet['id'])
+        mock_sns_get.assert_called_once_with(
+            context, self.subnet['id'])
+        self.mock_policy_check.assert_called_once_with(
+            context, self.resource_name, 'delete')
+
+    def test_delete_subnet_with_share_servers_fail(self):
+        req = fakes.HTTPRequest.blank('/subnets/%s' % self.subnet['id'],
+                                      version="2.51")
+        context = req.environ['manila.context']
+
+        mock_sns_get = self.mock_object(
+            db_api, 'share_network_subnet_get',
+            mock.Mock(return_value=self.subnet))
+        mock_all_get_all_shares_by_ss = self.mock_object(
+            db_api, 'share_instances_get_all_by_share_server',
+            mock.Mock(return_value=[]))
+        mock_all_ss_are_auto_deletable = self.mock_object(
+            self.controller, '_all_share_servers_are_auto_deletable',
+            mock.Mock(return_value=False))
+
+        self.assertRaises(exc.HTTPConflict,
+                          self.controller.delete,
+                          req,
+                          self.share_network['id'],
+                          self.subnet['id'])
+
+        mock_sns_get.assert_called_once_with(
+            context, self.subnet['id'])
+        mock_all_get_all_shares_by_ss.assert_called_once_with(
+            context, self.subnet['share_servers'][0].id
+        )
+        mock_all_ss_are_auto_deletable.assert_called_once_with(
+            self.subnet
+        )
+        self.mock_policy_check.assert_called_once_with(
+            context, self.resource_name, 'delete')
+
+    def test_delete_subnet_with_shares_fail(self):
+        req = fakes.HTTPRequest.blank('/subnets/%s' % self.subnet['id'],
+                                      version="2.51")
+        context = req.environ['manila.context']
+
+        mock_sns_get = self.mock_object(
+            db_api, 'share_network_subnet_get',
+            mock.Mock(return_value=self.subnet))
+        mock_all_get_all_shares_by_ss = self.mock_object(
+            db_api, 'share_instances_get_all_by_share_server',
+            mock.Mock(return_value=[self.share]))
+
+        self.assertRaises(exc.HTTPConflict,
+                          self.controller.delete,
+                          req,
+                          self.share_network['id'],
+                          self.subnet['id'])
+
+        mock_sns_get.assert_called_once_with(
+            context, self.subnet['id'])
+        mock_all_get_all_shares_by_ss.assert_called_once_with(
+            context, self.subnet['share_servers'][0].id
+        )
+        self.mock_policy_check.assert_called_once_with(
+            context, self.resource_name, 'delete')
+
+    @ddt.data((None, fake_default_subnet, None),
+              (fake_az, None, fake_subnet_with_az))
+    @ddt.unpack
+    def test__validate_subnet(self, az, default_subnet, subnet_az):
+        req = fakes.HTTPRequest.blank('/subnets', version='2.51')
+        context = req.environ['manila.context']
+
+        mock_get_default_sns = self.mock_object(
+            db_api, 'share_network_subnet_get_default_subnet',
+            mock.Mock(return_value=default_subnet))
+        mock_get_subnet_by_az = self.mock_object(
+            db_api, 'share_network_subnet_get_by_availability_zone_id',
+            mock.Mock(return_value=subnet_az))
+
+        self.assertRaises(exc.HTTPConflict,
+                          self.controller._validate_subnet,
+                          context,
+                          self.share_network['id'],
+                          az)
+        if az:
+            mock_get_subnet_by_az.assert_called_once_with(
+                context, self.share_network['id'], az['id'])
+            mock_get_default_sns.assert_not_called()
+        else:
+            mock_get_default_sns.assert_called_once_with(
+                context, self.share_network['id'])
+            mock_get_subnet_by_az.assert_not_called()
+
+    def _setup_create_test_request_body(self):
+        body = {
+            'share_network_id': self.share_network['id'],
+            'availability_zone': fake_az['name'],
+            'neutron_net_id': 'fake_nn_id',
+            'neutron_subnet_id': 'fake_nsn_id'
+        }
+        return body
+
+    def test_subnet_create(self):
+        req = fakes.HTTPRequest.blank('/subnets', version="2.51")
+        context = req.environ['manila.context']
+        body = {
+            'share-network-subnet': self._setup_create_test_request_body()
+        }
+        sn_id = body['share-network-subnet']['share_network_id']
+
+        expected_result = copy.deepcopy(body)
+        expected_result['share-network-subnet']['id'] = self.subnet['id']
+        mock_check_net_and_subnet_id = self.mock_object(
+            common, 'check_net_id_and_subnet_id')
+        mock_validate_subnet = self.mock_object(
+            self.controller, '_validate_subnet')
+        mock_subnet_create = self.mock_object(
+            db_api, 'share_network_subnet_create',
+            mock.Mock(return_value=self.subnet))
+
+        self.controller.create(
+            req, body['share-network-subnet']['share_network_id'], body)
+
+        mock_check_net_and_subnet_id.assert_called_once_with(
+            body['share-network-subnet'])
+        mock_validate_subnet.assert_called_once_with(
+            context, sn_id, az=fake_az)
+        mock_subnet_create.assert_called_once_with(
+            context, body['share-network-subnet'])
+
+    def test_subnet_create_share_network_not_found(self):
+        fake_sn_id = 'fake_id'
+        req = fakes.HTTPRequest.blank('/subnets', version="2.51")
+        context = req.environ['manila.context']
+        body = {
+            'share-network-subnet': self._setup_create_test_request_body()
+        }
+        mock_sn_get = self.mock_object(
+            db_api, 'share_network_get',
+            mock.Mock(side_effect=exception.ShareNetworkNotFound(
+                share_network_id=fake_sn_id)))
+
+        self.assertRaises(exc.HTTPNotFound,
+                          self.controller.create,
+                          req,
+                          fake_sn_id,
+                          body)
+        mock_sn_get.assert_called_once_with(context, fake_sn_id)
+
+    def test_subnet_create_az_not_found(self):
+        fake_sn_id = 'fake_id'
+        req = fakes.HTTPRequest.blank('/subnets', version="2.51")
+        context = req.environ['manila.context']
+        body = {
+            'share-network-subnet': self._setup_create_test_request_body()
+        }
+        mock_sn_get = self.mock_object(db_api, 'share_network_get')
+        mock_az_get = self.mock_object(
+            db_api, 'availability_zone_get',
+            mock.Mock(side_effect=exception.AvailabilityZoneNotFound(id='')))
+
+        expected_az = body['share-network-subnet']['availability_zone']
+
+        self.assertRaises(exc.HTTPBadRequest,
+                          self.controller.create,
+                          req,
+                          fake_sn_id,
+                          body)
+        mock_sn_get.assert_called_once_with(context, fake_sn_id)
+        mock_az_get.assert_called_once_with(
+            context, expected_az)
+
+    def test_subnet_create_subnet_default_or_same_az_exists(self):
+        fake_sn_id = 'fake_id'
+        req = fakes.HTTPRequest.blank('/subnets', version="2.51")
+        context = req.environ['manila.context']
+        body = {
+            'share-network-subnet': self._setup_create_test_request_body()
+        }
+        mock_sn_get = self.mock_object(db_api, 'share_network_get')
+        mock__validate_subnet = self.mock_object(
+            self.controller, '_validate_subnet',
+            mock.Mock(side_effect=exc.HTTPConflict(''))
+        )
+        expected_az = body['share-network-subnet']['availability_zone']
+
+        self.assertRaises(exc.HTTPConflict,
+                          self.controller.create,
+                          req,
+                          fake_sn_id,
+                          body)
+        mock_sn_get.assert_called_once_with(context, fake_sn_id)
+        self.mock_az_get.assert_called_once_with(context, expected_az)
+        mock__validate_subnet.assert_called_once_with(
+            context, fake_sn_id, az=fake_az)
+
+    def test_subnet_create_subnet_db_error(self):
+        fake_sn_id = 'fake_sn_id'
+        req = fakes.HTTPRequest.blank('/subnets', version="2.51")
+        context = req.environ['manila.context']
+        body = {
+            'share-network-subnet': self._setup_create_test_request_body()
+        }
+        mock_sn_get = self.mock_object(db_api, 'share_network_get')
+        mock__validate_subnet = self.mock_object(
+            self.controller, '_validate_subnet')
+        mock_db_subnet_create = self.mock_object(
+            db_api, 'share_network_subnet_create',
+            mock.Mock(side_effect=db_exception.DBError()))
+        expected_data = copy.deepcopy(body['share-network-subnet'])
+        expected_data['availability_zone_id'] = fake_az['id']
+        expected_data.pop('availability_zone')
+
+        self.assertRaises(exc.HTTPInternalServerError,
+                          self.controller.create,
+                          req,
+                          fake_sn_id,
+                          body)
+
+        mock_sn_get.assert_called_once_with(context, fake_sn_id)
+        self.mock_az_get.assert_called_once_with(context, fake_az['name'])
+        mock__validate_subnet.assert_called_once_with(
+            context, fake_sn_id, az=fake_az)
+        mock_db_subnet_create.assert_called_once_with(
+            context, expected_data
+        )
+
+    def test_show_subnet(self):
+        subnet = db_utils.create_share_network_subnet(
+            id='fake_sns_2', share_network_id=self.share_network['id'])
+        expected_result = {
+            'share_network_subnet': {
+                "created_at": subnet['created_at'],
+                "id": subnet['id'],
+                "share_network_id": subnet['share_network_id'],
+                "share_network_name": self.share_network['name'],
+                "availability_zone": subnet['availability_zone'],
+                "segmentation_id": subnet['segmentation_id'],
+                "neutron_subnet_id": subnet['neutron_subnet_id'],
+                "updated_at": subnet['updated_at'],
+                "neutron_net_id": subnet['neutron_net_id'],
+                "ip_version": subnet['ip_version'],
+                "cidr": subnet['cidr'],
+                "network_type": subnet['network_type'],
+                "gateway": subnet['gateway'],
+                "mtu": subnet['mtu'],
+            }
+        }
+        req = fakes.HTTPRequest.blank('/subnets/%s' % subnet['id'],
+                                      version="2.51")
+        context = req.environ['manila.context']
+        mock_sn_get = self.mock_object(
+            db_api, 'share_network_get', mock.Mock(
+                return_value=self.share_network))
+        mock_sns_get = self.mock_object(
+            db_api, 'share_network_subnet_get', mock.Mock(
+                return_value=subnet))
+
+        result = self.controller.show(req, self.share_network['id'],
+                                      subnet['id'])
+
+        self.assertEqual(expected_result, result)
+        mock_sn_get.assert_called_once_with(context, self.share_network['id'])
+        mock_sns_get.assert_called_once_with(context, subnet['id'])
+
+    @ddt.data(
+        (mock.Mock(side_effect=exception.ShareNetworkNotFound(
+            share_network_id='fake_net_id')), None),
+        (mock.Mock(), mock.Mock(
+            side_effect=exception.ShareNetworkSubnetNotFound(
+                share_network_subnet_id='fake_subnet_id'))))
+    @ddt.unpack
+    def test_show_subnet_not_found(self, sn_get_side_effect,
+                                   sns_get_side_effect):
+        req = fakes.HTTPRequest.blank('/subnets/%s' % self.subnet['id'],
+                                      version="2.51")
+        context = req.environ['manila.context']
+
+        mock_sn_get = self.mock_object(
+            db_api, 'share_network_get', sn_get_side_effect)
+        mock_sns_get = self.mock_object(
+            db_api, 'share_network_subnet_get', sns_get_side_effect)
+
+        self.assertRaises(exc.HTTPNotFound,
+                          self.controller.show,
+                          req,
+                          self.share_network['id'],
+                          self.subnet['id'])
+        mock_sn_get.assert_called_once_with(context, self.share_network['id'])
+        if sns_get_side_effect:
+            mock_sns_get.assert_called_once_with(context, self.subnet['id'])
+
+    def test_list_subnet(self):
+        share_network_id = 'fake_id'
+        subnet = db_utils.create_share_network_subnet(
+            share_network_id=share_network_id, id='fake_id')
+        fake_sn = db_utils.create_share_network(id=share_network_id)
+        expected_result = {
+            'share_network_subnets': [{
+                "created_at": subnet['created_at'],
+                "id": subnet['id'],
+                "share_network_id": subnet['id'],
+                "share_network_name": fake_sn["name"],
+                "availability_zone": subnet['availability_zone'],
+                "segmentation_id": subnet['segmentation_id'],
+                "neutron_subnet_id": subnet['neutron_subnet_id'],
+                "updated_at": subnet['updated_at'],
+                "neutron_net_id": subnet['neutron_net_id'],
+                "ip_version": subnet['ip_version'],
+                "cidr": subnet['cidr'],
+                "network_type": subnet['network_type'],
+                "gateway": subnet['gateway'],
+                "mtu": subnet['mtu'],
+            }]
+        }
+
+        req = fakes.HTTPRequest.blank('/subnets/', version="2.51")
+        context = req.environ['manila.context']
+        mock_sn_get = self.mock_object(
+            db_api, 'share_network_get', mock.Mock(
+                return_value=fake_sn))
+
+        result = self.controller.index(req, self.share_network['id'])
+
+        self.assertEqual(expected_result, result)
+        mock_sn_get.assert_called_once_with(context, self.share_network['id'])
+
+    def test_list_subnet_share_network_not_found(self):
+        req = fakes.HTTPRequest.blank('/subnets/', version="2.51")
+        context = req.environ['manila.context']
+
+        mock_sn_get = self.mock_object(
+            db_api, 'share_network_get', mock.Mock(
+                side_effect=exception.ShareNetworkNotFound(
+                    share_network_id=self.share_network['id'])))
+
+        self.assertRaises(exc.HTTPNotFound,
+                          self.controller.index,
+                          req,
+                          self.share_network['id'])
+        mock_sn_get.assert_called_once_with(context, self.share_network['id'])

manila/tests/api/v2/test_share_networks.py

@@ -13,7 +13,9 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+import copy
 import ddt
+from manila.api import common
 import mock
 from oslo_db import exception as db_exception
 from oslo_utils import timeutils
@@ -29,23 +31,32 @@ from manila import test
 from manila.tests.api import fakes
 
 
-fake_share_network = {
-    'id': 'fake network id',
-    'project_id': 'fake project',
-    'created_at': timeutils.parse_strtime('2002-02-02', fmt="%Y-%m-%d"),
-    'updated_at': None,
+fake_share_network_subnet = {
+    'id': 'fake subnet id',
     'neutron_net_id': 'fake net id',
     'neutron_subnet_id': 'fake subnet id',
     'network_type': 'vlan',
     'segmentation_id': 1000,
     'cidr': '10.0.0.0/24',
     'ip_version': 4,
+    'share_network_id': 'fake network id',
+    'availability_zone_id': None,
+    'share_servers': [],
+    'availability_zone': []
+}
+
+fake_share_network = {
+    'id': 'fake network id',
+    'project_id': 'fake project',
+    'created_at': timeutils.parse_strtime('2002-02-02', fmt="%Y-%m-%d"),
+    'updated_at': None,
     'name': 'fake name',
     'description': 'fake description',
-    'share_servers': [],
-    'security_services': []
+    'security_services': [],
+    'share_network_subnets': []
 }
 
+
 fake_share_network_shortened = {
     'id': 'fake network id',
     'name': 'fake name',
@@ -56,15 +67,9 @@ fake_share_network_with_ss = {
     'project_id': 'fake',
     'created_at': timeutils.parse_strtime('2001-01-01', fmt="%Y-%m-%d"),
     'updated_at': None,
-    'neutron_net_id': '1111',
-    'neutron_subnet_id': '2222',
-    'network_type': 'local',
-    'segmentation_id': 2000,
-    'cidr': '8.0.0.0/12',
-    'ip_version': 6,
     'name': 'test-sn',
     'description': 'fake description',
-    'share_servers': [],
+    'share_network_subnets': [],
     'security_services': [{'id': 'fake-ss-id'}]
 }
 
@@ -95,42 +100,63 @@ class ShareNetworkAPITest(test.TestCase):
         self.assertEqual(share_nw['project_id'], view['project_id'])
         self.assertEqual(share_nw['created_at'], view['created_at'])
         self.assertEqual(share_nw['updated_at'], view['updated_at'])
-        self.assertEqual(share_nw['neutron_net_id'],
-                         view['neutron_net_id'])
-        self.assertEqual(share_nw['neutron_subnet_id'],
-                         view['neutron_subnet_id'])
-        self.assertEqual(share_nw['network_type'], view['network_type'])
-        self.assertEqual(share_nw['segmentation_id'],
-                         view['segmentation_id'])
-        self.assertEqual(share_nw['cidr'], view['cidr'])
-        self.assertEqual(share_nw['ip_version'], view['ip_version'])
         self.assertEqual(share_nw['name'], view['name'])
         self.assertEqual(share_nw['description'], view['description'])
-
-        self.assertEqual(share_nw['created_at'], view['created_at'])
-        self.assertEqual(share_nw['updated_at'], view['updated_at'])
         self.assertNotIn('shares', view)
         self.assertNotIn('network_allocations', view)
         self.assertNotIn('security_services', view)
 
-    @ddt.data(
-        {'neutron_net_id': 'fake_neutron_net_id'},
-        {'neutron_subnet_id': 'fake_neutron_subnet_id'},
-        {'neutron_net_id': 'fake', 'neutron_subnet_id': 'fake'})
-    def test_create_valid_cases(self, data):
+    def _setup_body_for_create_test(self, data):
         data.update({'user_id': 'fake_user_id'})
         body = {share_networks.RESOURCE_NAME: data}
+        return body
+
+    @ddt.data(
+        {'neutron_net_id': 'fake', 'neutron_subnet_id': 'fake'})
+    def test_create_valid_cases(self, data):
+        body = self._setup_body_for_create_test(data)
         result = self.controller.create(self.req, body)
         data.pop('user_id', None)
         for k, v in data.items():
             self.assertIn(data[k], result['share_network'][k])
 
+    @ddt.data(
+        {'neutron_net_id': 'fake', 'neutron_subnet_id': 'fake',
+         'availability_zone': 'fake'})
+    def test_create_valid_cases_upper_2_50(self, data):
+        req = fakes.HTTPRequest.blank('/share-networks', version="2.51")
+        context = req.environ['manila.context']
+        body = self._setup_body_for_create_test(data)
+        fake_az = {
+            'name': 'fake',
+            'id': 'fake_id'
+        }
+        self.mock_object(db_api, 'availability_zone_get',
+                         mock.Mock(return_value=fake_az))
+
+        result = self.controller.create(req, body)
+        result_subnet = result['share_network']['share_network_subnets'][0]
+        data.pop('user_id', None)
+        data.pop('project_id', None)
+        data.pop('availability_zone_id', None)
+        data.pop('id', None)
+        data['availability_zone'] = result_subnet['availability_zone']
+
+        for k, v in data.items():
+            self.assertIn(k, result_subnet.keys())
+
+        db_api.availability_zone_get.assert_called_once_with(
+            context, fake_az['name']
+        )
+
     @ddt.data(
         {'nova_net_id': 'foo', 'neutron_net_id': 'bar'},
         {'nova_net_id': 'foo', 'neutron_subnet_id': 'quuz'},
         {'nova_net_id': 'foo', 'neutron_net_id': 'bar',
          'neutron_subnet_id': 'quuz'},
-        {'nova_net_id': 'fake_nova_net_id'})
+        {'nova_net_id': 'fake_nova_net_id'},
+        {'neutron_net_id': 'bar'},
+        {'neutron_subnet_id': 'quuz'})
     def test_create_invalid_cases(self, data):
         data.update({'user_id': 'fake_user_id'})
         body = {share_networks.RESOURCE_NAME: data}
@@ -138,9 +164,9 @@ class ShareNetworkAPITest(test.TestCase):
             webob_exc.HTTPBadRequest, self.controller.create, self.req, body)
 
     @ddt.data(
-        {'neutron_net_id': 'fake_neutron_net_id'},
-        {'neutron_subnet_id': 'fake_neutron_subnet_id'},
-        {'neutron_net_id': 'fake', 'neutron_subnet_id': 'fake'})
+        {'name': 'new fake name'},
+        {'description': 'new fake description'},
+        {'name': 'new fake name', 'description': 'new fake description'})
     def test_update_valid_cases(self, data):
         body = {share_networks.RESOURCE_NAME: {'user_id': 'fake_user'}}
         created = self.controller.create(self.req, body)
@@ -172,7 +198,29 @@ class ShareNetworkAPITest(test.TestCase):
             self.controller.update,
             self.req, created['share_network']['id'], body)
 
+    @ddt.data(
+        ({'share_network_subnets': [
+            {'share_network_id': fake_share_network['id']}]}, True),
+        ({'share_network_subnets': []}, False))
+    @ddt.unpack
+    def test__subnet_has_search_opt(self, network, has_search_opt):
+        search_opts = {
+            'share_network_id': fake_share_network['id']
+        }
+
+        result = None
+
+        for key, value in search_opts.items():
+            result = self.controller._subnet_has_search_opt(
+                key, value, network)
+
+        self.assertEqual(has_search_opt, result)
+
     def test_create_nominal(self):
+        self.mock_object(db_api, 'share_network_subnet_create')
+        self.mock_object(db_api, 'share_network_get',
+                         mock.Mock(return_value=fake_share_network))
+        self.mock_object(common, 'check_net_id_and_subnet_id')
         with mock.patch.object(db_api,
                                'share_network_create',
                                mock.Mock(return_value=fake_share_network)):
@@ -191,7 +239,7 @@ class ShareNetworkAPITest(test.TestCase):
         with mock.patch.object(db_api,
                                'share_network_create',
                                mock.Mock(side_effect=db_exception.DBError)):
-            self.assertRaises(webob_exc.HTTPBadRequest,
+            self.assertRaises(webob_exc.HTTPInternalServerError,
                               self.controller.create,
                               self.req,
                               self.body)
@@ -203,9 +251,55 @@ class ShareNetworkAPITest(test.TestCase):
                           self.req,
                           body)
 
+    @ddt.data(
+        {'availability_zone': 'fake-zone'})
+    def test_create_az_not_found(self, data):
+        req = fakes.HTTPRequest.blank('/share-networks', version="2.51")
+
+        self.mock_object(
+            db_api, 'availability_zone_get',
+            mock.Mock(
+                side_effect=exception.AvailabilityZoneNotFound(id='fake')))
+
+        body = {share_networks.RESOURCE_NAME: data}
+
+        self.assertRaises(webob_exc.HTTPBadRequest,
+                          self.controller.create,
+                          req,
+                          body)
+
+    def test_create_error_on_subnet_creation(self):
+        data = {
+            'neutron_net_id': 'fake',
+            'neutron_subnet_id': 'fake',
+            'id': fake_share_network['id']
+        }
+        subnet_data = copy.deepcopy(data)
+        self.mock_object(db_api, 'share_network_create',
+                         mock.Mock(return_value=fake_share_network))
+        self.mock_object(db_api, 'share_network_subnet_create',
+                         mock.Mock(side_effect=db_exception.DBError()))
+        self.mock_object(db_api, 'share_network_delete')
+        body = {share_networks.RESOURCE_NAME: data}
+
+        self.assertRaises(webob_exc.HTTPInternalServerError,
+                          self.controller.create,
+                          self.req,
+                          body)
+
+        db_api.share_network_create.assert_called_once_with(self.context, data)
+        subnet_data['share_network_id'] = data['id']
+        subnet_data.pop('id')
+        db_api.share_network_subnet_create.assert_called_once_with(
+            self.context, subnet_data)
+        db_api.share_network_delete.assert_called_once_with(
+            self.context, fake_share_network['id'])
+
     def test_delete_nominal(self):
         share_nw = fake_share_network.copy()
-        share_nw['share_servers'] = ['foo', 'bar']
+        subnet = fake_share_network_subnet.copy()
+        subnet['share_servers'] = ['foo', 'bar']
+        share_nw['share_network_subnets'] = [subnet]
         self.mock_object(db_api, 'share_network_get',
                          mock.Mock(return_value=share_nw))
         self.mock_object(db_api, 'share_instances_get_all_by_share_network',
@@ -242,7 +336,9 @@ class ShareNetworkAPITest(test.TestCase):
 
     def test_quota_delete_reservation_failed(self):
         share_nw = fake_share_network.copy()
-        share_nw['share_servers'] = ['foo', 'bar']
+        subnet = fake_share_network_subnet.copy()
+        subnet['share_servers'] = ['foo', 'bar']
+        share_nw['share_network_subnets'] = [subnet]
         share_nw['user_id'] = 'fake_user_id'
 
         self.mock_object(db_api, 'share_network_get',
@@ -330,6 +426,53 @@ class ShareNetworkAPITest(test.TestCase):
         db_api.share_network_get.assert_called_once_with(
             self.req.environ['manila.context'], share_nw['id'])
 
+    def test_delete_contains_more_than_one_subnet(self):
+        share_nw = fake_share_network.copy()
+        self.mock_object(db_api, 'share_network_get',
+                         mock.Mock(return_value=share_nw))
+        self.mock_object(db_api, 'share_instances_get_all_by_share_network',
+                         mock.Mock(return_value=None))
+        self.mock_object(db_api, 'count_share_groups_in_share_network',
+                         mock.Mock(return_value=None))
+        self.mock_object(self.controller, '_share_network_contains_subnets',
+                         mock.Mock(return_value=True))
+
+        self.assertRaises(webob_exc.HTTPConflict,
+                          self.controller.delete,
+                          self.req,
+                          share_nw['id'])
+
+        db_api.share_network_get.assert_called_once_with(
+            self.context, share_nw['id'])
+        (db_api.share_instances_get_all_by_share_network
+            .assert_called_once_with(self.context, share_nw['id']))
+        db_api.count_share_groups_in_share_network.assert_called_once_with(
+            self.context, share_nw['id']
+        )
+        (self.controller._share_network_contains_subnets
+            .assert_called_once_with(share_nw))
+
+    def test_delete_subnet_contains_share_server(self):
+        share_nw = fake_share_network.copy()
+        share_nw['share_network_subnets'].append({
+            'id': 'fake_sns_id',
+            'share_servers': [{'id': 'fake_share_server_id'}]
+        })
+        self.mock_object(db_api, 'share_network_get',
+                         mock.Mock(return_value=share_nw))
+        self.mock_object(db_api, 'count_share_groups_in_share_network',
+                         mock.Mock(return_value=0))
+        self.mock_object(self.controller, '_share_network_contains_subnets',
+                         mock.Mock(return_value=False))
+        self.mock_object(
+            self.controller, '_all_share_servers_are_auto_deletable',
+            mock.Mock(return_value=False))
+
+        self.assertRaises(webob_exc.HTTPConflict,
+                          self.controller.delete,
+                          self.req,
+                          share_nw['id'])
+
     @ddt.data(
         ({'share_servers': [{'is_auto_deletable': True},
                             {'is_auto_deletable': True}]}, True),
@@ -344,6 +487,18 @@ class ShareNetworkAPITest(test.TestCase):
             self.controller._all_share_servers_are_auto_deletable(
                 fake_share_network))
 
+    @ddt.data(
+        ({'share_network_subnets': [{'share_servers': [{}, {}]}]}, True),
+        ({'share_network_subnets': [{'share_servers': []}]}, False),
+    )
+    @ddt.unpack
+    def test__share_network_subnets_contain_share_servers(self, share_network,
+                                                          expected_result):
+        self.assertEqual(
+            expected_result,
+            self.controller._share_network_subnets_contain_share_servers(
+                share_network))
+
     def test_show_nominal(self):
         share_nw = 'fake network id'
         with mock.patch.object(db_api,
@@ -552,12 +707,6 @@ class ShareNetworkAPITest(test.TestCase):
         valid_filter_opts = {
             'created_before': '2001-02-02',
             'created_since': '1999-01-01',
-            'neutron_net_id': '1111',
-            'neutron_subnet_id': '2222',
-            'network_type': 'local',
-            'segmentation_id': 2000,
-            'cidr': '8.0.0.0/12',
-            'ip_version': 6,
             'name': 'test-sn'
         }
         db_api.share_network_get_all_by_project.return_value = [
@@ -614,7 +763,9 @@ class ShareNetworkAPITest(test.TestCase):
     @mock.patch.object(db_api, 'share_network_get', mock.Mock())
     def test_update_invalid_key_in_use(self):
         share_nw = fake_share_network.copy()
-        share_nw['share_servers'] = [{'id': 1}]
+        subnet = fake_share_network_subnet.copy()
+        subnet['share_servers'] = [{'id': 1}]
+        share_nw['share_network_subnets'] = [subnet]
 
         db_api.share_network_get.return_value = share_nw
         body = {
@@ -633,12 +784,15 @@ class ShareNetworkAPITest(test.TestCase):
     @mock.patch.object(db_api, 'share_network_update', mock.Mock())
     def test_update_valid_keys_in_use(self):
         share_nw = fake_share_network.copy()
-        share_nw['share_servers'] = [{'id': 1}]
+        subnet = fake_share_network_subnet.copy()
+        subnet['share_servers'] = [{'id': 1}]
+        share_nw['share_network_subnets'] = [subnet]
         updated_share_nw = share_nw.copy()
         updated_share_nw['name'] = 'new name'
         updated_share_nw['description'] = 'new description'
 
         db_api.share_network_get.return_value = share_nw
+        db_api.share_network_update.return_value = updated_share_nw
         body = {
             share_networks.RESOURCE_NAME: {
                 'name': updated_share_nw['name'],
@@ -656,6 +810,10 @@ class ShareNetworkAPITest(test.TestCase):
         share_nw = 'fake network id'
         db_api.share_network_get.return_value = fake_share_network
 
+        self.mock_object(
+            self.controller, '_share_network_subnets_contain_share_servers',
+            mock.Mock(return_value=False))
+
         body = {share_networks.RESOURCE_NAME: {'neutron_subnet_id':
                                                'new subnet'}}
 
@@ -672,6 +830,9 @@ class ShareNetworkAPITest(test.TestCase):
     def test_action_add_security_service(self, microversion):
         share_network_id = 'fake network id'
         security_service_id = 'fake ss id'
+        self.mock_object(
+            self.controller, '_share_network_subnets_contain_share_servers')
+
         body = {'add_security_service': {'security_service_id':
                                          security_service_id}}
 
@@ -692,6 +853,9 @@ class ShareNetworkAPITest(test.TestCase):
                             'type': 'ldap'}
         body = {'add_security_service': {'security_service_id':
                                          security_service['id']}}
+        self.mock_object(
+            self.controller, '_share_network_subnets_contain_share_servers',
+            mock.Mock(return_value=False))
 
         db_api.security_service_get.return_value = security_service
         db_api.share_network_get.return_value = share_network
@@ -716,6 +880,8 @@ class ShareNetworkAPITest(test.TestCase):
     def test_action_remove_security_service(self, microversion):
         share_network_id = 'fake network id'
         security_service_id = 'fake ss id'
+        self.mock_object(
+            self.controller, '_share_network_subnets_contain_share_servers')
         body = {'remove_security_service': {'security_service_id':
                                             security_service_id}}
 
@@ -730,8 +896,13 @@ class ShareNetworkAPITest(test.TestCase):
     @mock.patch.object(share_networks.policy, 'check_policy', mock.Mock())
     def test_action_remove_security_service_forbidden(self):
         share_network = fake_share_network.copy()
-        share_network['share_servers'] = 'fake share server'
+        subnet = fake_share_network_subnet.copy()
+        subnet['share_servers'] = ['foo']
+        share_network['share_network_subnets'] = [subnet]
         db_api.share_network_get.return_value = share_network
+        self.mock_object(
+            self.controller, '_share_network_subnets_contain_share_servers',
+            mock.Mock(return_value=True))
         body = {
             'remove_security_service': {
                 'security_service_id': 'fake id',
@@ -758,3 +929,31 @@ class ShareNetworkAPITest(test.TestCase):
                           self.req,
                           share_network_id,
                           body)
+
+    @ddt.data('add_security_service', 'remove_security_service')
+    def test_action_security_service_contains_share_servers(self, action):
+        share_network = fake_share_network.copy()
+        security_service = {'id': ' security_service_2',
+                            'type': 'ldap'}
+        body = {
+            action: {
+                'security_service_id': security_service['id']
+            }
+        }
+        self.mock_object(share_networks.policy, 'check_policy')
+        self.mock_object(db_api, 'share_network_get',
+                         mock.Mock(return_value=share_network))
+        self.mock_object(
+            self.controller, '_share_network_subnets_contain_share_servers',
+            mock.Mock(return_value=True))
+
+        self.assertRaises(webob_exc.HTTPForbidden,
+                          self.controller.action,
+                          self.req,
+                          share_network['id'],
+                          body)
+        db_api.share_network_get.assert_called_once_with(
+            self.req.environ['manila.context'], share_network['id'])
+        share_networks.policy.check_policy.assert_called_once_with(
+            self.req.environ['manila.context'],
+            share_networks.RESOURCE_NAME, action)

manila/tests/api/v2/test_share_servers.py

@@ -46,7 +46,8 @@ class ShareServerControllerTest(test.TestCase):
               constants.STATUS_UNMANAGE_ERROR, constants.STATUS_MANAGE_ERROR)
     def test_share_server_reset_status(self, status):
         req = fakes.HTTPRequest.blank('/v2/share-servers/fake-share-server/',
-                                      use_admin_context=True)
+                                      use_admin_context=True,
+                                      version="2.49")
         body = {'reset_status': {'status': status}}
 
         context = req.environ['manila.context']
@@ -62,7 +63,8 @@ class ShareServerControllerTest(test.TestCase):
             context, 'fake_server_id', {'status': status})
 
     def test_share_reset_server_status_invalid(self):
-        req = fakes.HTTPRequest.blank('/reset_status', use_admin_context=True)
+        req = fakes.HTTPRequest.blank('/reset_status', use_admin_context=True,
+                                      version="2.49")
         body = {'reset_status': {'status': constants.STATUS_EXTENDING}}
         context = req.environ['manila.context']
 
@@ -74,7 +76,8 @@ class ShareServerControllerTest(test.TestCase):
             context, self.resource_name, 'reset_status')
 
     def test_share_server_reset_status_no_body(self):
-        req = fakes.HTTPRequest.blank('/reset_status', use_admin_context=True)
+        req = fakes.HTTPRequest.blank('/reset_status', use_admin_context=True,
+                                      version="2.49")
         context = req.environ['manila.context']
 
         self.assertRaises(
@@ -85,7 +88,8 @@ class ShareServerControllerTest(test.TestCase):
             context, self.resource_name, 'reset_status')
 
     def test_share_server_reset_status_no_status(self):
-        req = fakes.HTTPRequest.blank('/reset_status', use_admin_context=True)
+        req = fakes.HTTPRequest.blank('/reset_status', use_admin_context=True,
+                                      version="2.49")
         context = req.environ['manila.context']
 
         self.assertRaises(
@@ -98,6 +102,7 @@ class ShareServerControllerTest(test.TestCase):
     def _setup_manage_test_request_body(self):
         body = {
             'share_network_id': 'fake_net_id',
+            'share_network_subnet_id': 'fake_subnet_id',
             'host': 'fake_host',
             'identifier': 'fake_identifier',
             'driver_options': {'opt1': 'fake_opt1', 'opt2': 'fake_opt2'},
@@ -112,14 +117,18 @@ class ShareServerControllerTest(test.TestCase):
                                       version="2.49")
         context = req.environ['manila.context']
         share_network = db_utils.create_share_network(name=share_net_name)
+        share_net_subnet = db_utils.create_share_network_subnet(
+            share_network_id=share_network['id'])
         share_server = db_utils.create_share_server(
-            share_network_id=share_network['id'],
+            share_network_subnet_id=share_net_subnet['id'],
             host='fake_host',
             identifier='fake_identifier',
             is_auto_deletable=False)
 
         self.mock_object(db_api, 'share_network_get', mock.Mock(
             return_value=share_network))
+        self.mock_object(db_api, 'share_network_subnet_get_default_subnet',
+                         mock.Mock(return_value=share_net_subnet))
         self.mock_object(utils, 'validate_service_host')
 
         body = {
@@ -138,7 +147,8 @@ class ShareServerControllerTest(test.TestCase):
                 'updated_at': None,
                 'status': constants.STATUS_ACTIVE,
                 'host': 'fake_host',
-                'share_network_id': share_server['share_network_id'],
+                'share_network_id':
+                    share_server['share_network_subnet']['share_network_id'],
                 'created_at': share_server['created_at'],
                 'backend_details': {},
                 'identifier': share_server['identifier'],
@@ -150,12 +160,12 @@ class ShareServerControllerTest(test.TestCase):
                 'fake_net_name')
         else:
             expected_result['share_server']['share_network_name'] = (
-                share_server['share_network_id'])
+                share_net_subnet['share_network_id'])
 
         req_params = body['share_server']
         manage_share_server_mock.assert_called_once_with(
             context, req_params['identifier'], req_params['host'],
-            share_network, req_params['driver_options'])
+            share_net_subnet, req_params['driver_options'])
 
         self.assertEqual(expected_result, result)
 
@@ -164,9 +174,11 @@ class ShareServerControllerTest(test.TestCase):
 
     def test_manage_invalid(self):
         req = fakes.HTTPRequest.blank('/manage_share_server',
-                                      use_admin_context=True)
+                                      use_admin_context=True, version="2.49")
         context = req.environ['manila.context']
         share_network = db_utils.create_share_network()
+        share_net_subnet = db_utils.create_share_network_subnet(
+            share_network_id=share_network['id'])
 
         body = {
             'share_server': self._setup_manage_test_request_body()
@@ -174,6 +186,8 @@ class ShareServerControllerTest(test.TestCase):
         self.mock_object(utils, 'validate_service_host')
         self.mock_object(db_api, 'share_network_get',
                          mock.Mock(return_value=share_network))
+        self.mock_object(db_api, 'share_network_subnet_get_default_subnet',
+                         mock.Mock(return_value=share_net_subnet))
 
         manage_share_server_mock = self.mock_object(
             share_api.API, 'manage_share_server',
@@ -185,15 +199,24 @@ class ShareServerControllerTest(test.TestCase):
         req_params = body['share_server']
         manage_share_server_mock.assert_called_once_with(
             context, req_params['identifier'], req_params['host'],
-            share_network, req_params['driver_options'])
+            share_net_subnet, req_params['driver_options'])
 
     def test_manage_forbidden(self):
         """Tests share server manage without admin privileges"""
-        req = fakes.HTTPRequest.blank('/manage_share_server')
-        self.mock_object(share_api.API, 'manage_share_server', mock.Mock())
+        req = fakes.HTTPRequest.blank('/manage_share_server', version="2.49")
         error = mock.Mock(side_effect=exception.PolicyNotAuthorized(action=''))
         self.mock_object(share_api.API, 'manage_share_server', error)
 
+        share_network = db_utils.create_share_network()
+        share_net_subnet = db_utils.create_share_network_subnet(
+            share_network_id=share_network['id'])
+
+        self.mock_object(db_api, 'share_network_get', mock.Mock(
+            return_value=share_network))
+        self.mock_object(db_api, 'share_network_subnet_get_default_subnet',
+                         mock.Mock(return_value=share_net_subnet))
+        self.mock_object(utils, 'validate_service_host')
+
         body = {
             'share_server': self._setup_manage_test_request_body()
         }
@@ -205,7 +228,7 @@ class ShareServerControllerTest(test.TestCase):
 
     def test__validate_manage_share_server_validate_no_body(self):
         """Tests share server manage"""
-        req = fakes.HTTPRequest.blank('/manage')
+        req = fakes.HTTPRequest.blank('/manage', version="2.49")
         body = {}
 
         self.assertRaises(webob.exc.HTTPUnprocessableEntity,
@@ -223,7 +246,7 @@ class ShareServerControllerTest(test.TestCase):
     def test__validate_manage_share_server_validate_without_parameters(
             self, empty, key):
         """Tests share server manage without some parameters"""
-        req = fakes.HTTPRequest.blank('/manage_share_server')
+        req = fakes.HTTPRequest.blank('/manage_share_server', version="2.49")
         self.mock_object(share_api.API, 'manage_share_server', mock.Mock())
 
         body = {
@@ -249,11 +272,20 @@ class ShareServerControllerTest(test.TestCase):
     @ddt.unpack
     def test__validate_manage_share_server_validate_service_host(
             self, exception_to_raise, side_effect_exception):
-        req = fakes.HTTPRequest.blank('/manage')
+        req = fakes.HTTPRequest.blank('/manage', version="2.49")
         context = req.environ['manila.context']
         error = mock.Mock(side_effect=side_effect_exception)
         self.mock_object(utils, 'validate_service_host', error)
 
+        share_network = db_utils.create_share_network()
+        share_net_subnet = db_utils.create_share_network_subnet(
+            share_network_id=share_network['id'])
+
+        self.mock_object(db_api, 'share_network_get', mock.Mock(
+            return_value=share_network))
+        self.mock_object(db_api, 'share_network_subnet_get_default_subnet',
+                         mock.Mock(return_value=share_net_subnet))
+
         self.assertRaises(
             exception_to_raise, self.controller.manage, req,
             {'share_server': self._setup_manage_test_request_body()})
@@ -262,7 +294,7 @@ class ShareServerControllerTest(test.TestCase):
             context, self.resource_name, 'manage_share_server')
 
     def test__validate_manage_share_server_share_network_not_found(self):
-        req = fakes.HTTPRequest.blank('/manage')
+        req = fakes.HTTPRequest.blank('/manage', version="2.49")
         context = req.environ['manila.context']
         self.mock_object(utils, 'validate_service_host')
         error = mock.Mock(
@@ -279,7 +311,7 @@ class ShareServerControllerTest(test.TestCase):
             context, self.resource_name, 'manage_share_server')
 
     def test__validate_manage_share_server_driver_opts_not_instance_dict(self):
-        req = fakes.HTTPRequest.blank('/manage')
+        req = fakes.HTTPRequest.blank('/manage', version="2.49")
         context = req.environ['manila.context']
         self.mock_object(utils, 'validate_service_host')
         self.mock_object(db_api, 'share_network_get')
@@ -294,7 +326,7 @@ class ShareServerControllerTest(test.TestCase):
             context, self.resource_name, 'manage_share_server')
 
     def test__validate_manage_share_server_error_extract_host(self):
-        req = fakes.HTTPRequest.blank('/manage')
+        req = fakes.HTTPRequest.blank('/manage', version="2.49")
         context = req.environ['manila.context']
         body = self._setup_manage_test_request_body()
         body['host'] = 'fake@backend#pool'
@@ -306,10 +338,44 @@ class ShareServerControllerTest(test.TestCase):
         policy.check_policy.assert_called_once_with(
             context, self.resource_name, 'manage_share_server')
 
+    @ddt.data(True, False)
+    def test__validate_manage_share_server_error_subnet_not_found(
+            self, body_contains_subnet):
+        req = fakes.HTTPRequest.blank('/manage', version="2.51")
+        context = req.environ['manila.context']
+        share_network = db_utils.create_share_network()
+        body = {'share_server': self._setup_manage_test_request_body()}
+        share_net_subnet = db_utils.create_share_network_subnet(
+            share_network_id=share_network['id'])
+        body['share_server']['share_network_subnet_id'] = (
+            share_net_subnet['id'] if body_contains_subnet else None)
+
+        self.mock_object(
+            db_api, 'share_network_subnet_get',
+            mock.Mock(side_effect=exception.ShareNetworkSubnetNotFound(
+                share_network_subnet_id='fake')))
+        self.mock_object(db_api, 'share_network_subnet_get_default_subnet',
+                         mock.Mock(return_value=None))
+
+        self.assertRaises(webob.exc.HTTPBadRequest,
+                          self.controller.manage,
+                          req,
+                          body)
+
+        policy.check_policy.assert_called_once_with(
+            context, self.resource_name, 'manage_share_server')
+        if body_contains_subnet:
+            db_api.share_network_subnet_get.assert_called_once_with(
+                context, share_net_subnet['id'])
+        else:
+            (db_api.share_network_subnet_get_default_subnet
+                .assert_called_once_with(
+                    context, body['share_server']['share_network_id']))
+
     @ddt.data(True, False)
     def test_unmanage(self, force):
         server = self._setup_unmanage_tests()
-        req = fakes.HTTPRequest.blank('/unmanage')
+        req = fakes.HTTPRequest.blank('/unmanage', version="2.49")
         context = req.environ['manila.context']
         mock_get = self.mock_object(
             db_api, 'share_server_get', mock.Mock(return_value=server))
@@ -326,7 +392,8 @@ class ShareServerControllerTest(test.TestCase):
 
     def test_unmanage_share_server_not_found(self):
         """Tests unmanaging share servers"""
-        req = fakes.HTTPRequest.blank('/v2/share-servers/fake_server_id/')
+        req = fakes.HTTPRequest.blank('/v2/share-servers/fake_server_id/',
+                                      version="2.49")
         context = req.environ['manila.context']
         share_server_error = mock.Mock(
             side_effect=exception.ShareServerNotFound(
@@ -350,7 +417,7 @@ class ShareServerControllerTest(test.TestCase):
         server = self._setup_unmanage_tests(status=status)
         get_mock = self.mock_object(db_api, 'share_server_get',
                                     mock.Mock(return_value=server))
-        req = fakes.HTTPRequest.blank('/unmanage_share_server')
+        req = fakes.HTTPRequest.blank('/unmanage_share_server', version="2.49")
         context = req.environ['manila.context']
         body = {'unmanage': {'force': True}}
 
@@ -371,7 +438,7 @@ class ShareServerControllerTest(test.TestCase):
 
     @ddt.data(exception.ShareServerInUse, exception.PolicyNotAuthorized)
     def test_unmanage_share_server_badrequest(self, exc):
-        req = fakes.HTTPRequest.blank('/unmanage')
+        req = fakes.HTTPRequest.blank('/unmanage', version="2.49")
         server = self._setup_unmanage_tests()
         context = req.environ['manila.context']
         error = mock.Mock(side_effect=exc('foobar'))

manila/tests/api/v2/test_shares.py

@@ -666,6 +666,8 @@ class ShareAPITest(test.TestCase):
         self.mock_object(share_api.API, 'create', create_mock)
         self.mock_object(share_api.API, 'get_share_network', mock.Mock(
             return_value={'id': 'fakenetid'}))
+        self.mock_object(
+            db, 'share_network_subnet_get_by_availability_zone_id')
 
         body = {"share": copy.deepcopy(shr)}
         req = fakes.HTTPRequest.blank('/shares', version='2.7')
@@ -674,6 +676,7 @@ class ShareAPITest(test.TestCase):
         expected = self._get_expected_share_detailed_response(
             shr, version='2.7')
         self.assertDictMatch(expected, res_dict)
+        # pylint: disable=unsubscriptable-object
         self.assertEqual("fakenetid",
                          create_mock.call_args[1]['share_network_id'])
 
@@ -1244,6 +1247,8 @@ class ShareAPITest(test.TestCase):
             return_value=parent_share))
         self.mock_object(share_api.API, 'get_share_network', mock.Mock(
             return_value={'id': parent_share_net}))
+        self.mock_object(
+            db, 'share_network_subnet_get_by_availability_zone_id')
 
         body = {"share": copy.deepcopy(shr)}
         req = fakes.HTTPRequest.blank('/shares', version='2.7')
@@ -1253,6 +1258,7 @@ class ShareAPITest(test.TestCase):
         expected = self._get_expected_share_detailed_response(
             shr, version='2.7')
         self.assertEqual(expected, res_dict)
+        # pylint: disable=unsubscriptable-object
         self.assertEqual(parent_share_net,
                          create_mock.call_args[1]['share_network_id'])
 
@@ -1286,6 +1292,8 @@ class ShareAPITest(test.TestCase):
             return_value=parent_share))
         self.mock_object(share_api.API, 'get_share_network', mock.Mock(
             return_value={'id': parent_share_net}))
+        self.mock_object(
+            db, 'share_network_subnet_get_by_availability_zone_id')
 
         body = {"share": copy.deepcopy(shr)}
         req = fakes.HTTPRequest.blank('/shares', version='2.7')
@@ -1293,6 +1301,7 @@ class ShareAPITest(test.TestCase):
         expected = self._get_expected_share_detailed_response(
             shr, version='2.7')
         self.assertDictMatch(expected, res_dict)
+        # pylint: disable=unsubscriptable-object
         self.assertEqual(parent_share_net,
                          create_mock.call_args[1]['share_network_id'])
 

manila/tests/api/views/test_share_network_subnets.py

@@ -0,0 +1,75 @@
+# Copyright 2019 NetApp, Inc.
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+
+import ddt
+
+from manila.api.views import share_network_subnets
+from manila import test
+from manila.tests.api import fakes
+from manila.tests import db_utils
+
+
+@ddt.ddt
+class ViewBuilderTestCase(test.TestCase):
+
+    def setUp(self):
+        super(ViewBuilderTestCase, self).setUp()
+        self.builder = share_network_subnets.ViewBuilder()
+        self.share_network = db_utils.create_share_network(
+            name='fake_network', id='fake_sn_id')
+
+    def _validate_is_detail_return(self, result):
+        expected_keys = ['id', 'created_at', 'updated_at', 'neutron_net_id',
+                         'neutron_subnet_id', 'network_type', 'cidr',
+                         'segmentation_id', 'ip_version', 'share_network_id',
+                         'availability_zone', 'gateway', 'mtu']
+
+        for key in expected_keys:
+            self.assertIn(key, result)
+
+    def test_build_share_network_subnet(self):
+        req = fakes.HTTPRequest.blank('/subnets', version='2.51')
+
+        subnet = db_utils.create_share_network_subnet(
+            share_network_id=self.share_network['id'])
+
+        result = self.builder.build_share_network_subnet(req, subnet)
+
+        self.assertEqual(1, len(result))
+        self.assertIn('share_network_subnet', result)
+        self.assertEqual(subnet['id'],
+                         result['share_network_subnet']['id'])
+        self.assertEqual(subnet['share_network_id'],
+                         result['share_network_subnet']['share_network_id'])
+        self.assertIsNone(
+            result['share_network_subnet']['availability_zone'])
+        self._validate_is_detail_return(result['share_network_subnet'])
+
+    def test_build_share_network_subnets(self):
+        req = fakes.HTTPRequest.blank('/subnets', version='2.51')
+
+        share_network = db_utils.create_share_network(
+            name='fake_network', id='fake_sn_id_1')
+        subnet = db_utils.create_share_network_subnet(
+            share_network_id=share_network['id'])
+
+        result = self.builder.build_share_network_subnets(req, [subnet])
+
+        self.assertIn('share_network_subnets', result)
+        self.assertEqual(1, len(result['share_network_subnets']))
+        subnet_list = result['share_network_subnets']
+        for subnet in subnet_list:
+            self._validate_is_detail_return(subnet)

manila/tests/api/views/test_share_networks.py

@@ -34,12 +34,21 @@ class ViewBuilderTestCase(test.TestCase):
 
     @ddt.data(*itertools.product(
         [
-            {'id': 'fake_sn_id', 'name': 'fake_sn_name'},
             {'id': 'fake_sn_id', 'name': 'fake_sn_name',
+             'share_network_subnets': []},
+            {'id': 'fake_sn_id', 'name': 'fake_sn_name',
+             'share_network_subnets': [], 'fake_extra_key': 'foo'},
+            {'id': 'fake_sn_id', 'name': 'fake_sn_name',
+             'share_network_subnets': [
+                 {'availability_zone_id': None,
+                  'id': 'fake',
+                  'availability_zone': None,
+                  'is_default': False
+                  }],
              'fake_extra_key': 'foo'},
         ],
         ["1.0", "2.0", "2.18", "2.20", "2.25", "2.26",
-         api_version._MAX_API_VERSION])
+         "2.49", api_version._MAX_API_VERSION])
     )
     @ddt.unpack
     def test_build_share_network(self, share_network_data, microversion):
@@ -49,17 +58,28 @@ class ViewBuilderTestCase(test.TestCase):
                        api_version.APIVersionRequest('2.20'))
         nova_net_support = (api_version.APIVersionRequest(microversion) <
                             api_version.APIVersionRequest('2.26'))
+        default_net_info_support = (api_version.APIVersionRequest(microversion)
+                                    <= api_version.APIVersionRequest('2.49'))
+        subnets_support = (api_version.APIVersionRequest(microversion) >
+                           api_version.APIVersionRequest('2.49'))
         req = fakes.HTTPRequest.blank('/share-networks', version=microversion)
         expected_keys = {
             'id', 'name', 'project_id', 'created_at', 'updated_at',
-            'neutron_net_id', 'neutron_subnet_id', 'network_type',
-            'segmentation_id', 'cidr', 'ip_version', 'description'}
-        if gateway_support:
-            expected_keys.add('gateway')
-        if mtu_support:
-            expected_keys.add('mtu')
-        if nova_net_support:
-            expected_keys.add('nova_net_id')
+            'description'}
+        if subnets_support:
+            expected_keys.add('share_network_subnets')
+        else:
+            if default_net_info_support:
+                network_info = {
+                    'neutron_net_id', 'neutron_subnet_id', 'network_type',
+                    'segmentation_id', 'cidr', 'ip_version'}
+                expected_keys.update(network_info)
+            if gateway_support:
+                expected_keys.add('gateway')
+            if mtu_support:
+                expected_keys.add('mtu')
+            if nova_net_support:
+                expected_keys.add('nova_net_id')
 
         result = self.builder.build_share_network(req, share_network_data)
         self.assertEqual(1, len(result))
@@ -93,7 +113,7 @@ class ViewBuilderTestCase(test.TestCase):
              {'id': 'fake_id2',
               'name': 'fake_name2'}],
         ],
-        set(["1.0", "2.0", "2.18", "2.20", "2.25", "2.26",
+        set(["1.0", "2.0", "2.18", "2.20", "2.25", "2.26", "2.49",
              api_version._MAX_API_VERSION]))
     )
     @ddt.unpack
@@ -105,6 +125,10 @@ class ViewBuilderTestCase(test.TestCase):
                        api_version.APIVersionRequest('2.20'))
         nova_net_support = (api_version.APIVersionRequest(microversion) <
                             api_version.APIVersionRequest('2.26'))
+        default_net_info_support = (api_version.APIVersionRequest(microversion)
+                                    <= api_version.APIVersionRequest('2.49'))
+        subnets_support = (api_version.APIVersionRequest(microversion) >
+                           api_version.APIVersionRequest('2.49'))
         req = fakes.HTTPRequest.blank('/share-networks', version=microversion)
         expected_networks_list = []
         for share_network in share_networks:
@@ -114,23 +138,34 @@ class ViewBuilderTestCase(test.TestCase):
                 'project_id': share_network.get('project_id'),
                 'created_at': share_network.get('created_at'),
                 'updated_at': share_network.get('updated_at'),
-                'neutron_net_id': share_network.get('neutron_net_id'),
-                'neutron_subnet_id': share_network.get('neutron_subnet_id'),
-                'network_type': share_network.get('network_type'),
-                'segmentation_id': share_network.get('segmentation_id'),
-                'cidr': share_network.get('cidr'),
-                'ip_version': share_network.get('ip_version'),
                 'description': share_network.get('description'),
             }
-            if gateway_support:
-                share_network.update({'gateway': 'fake_gateway'})
-                expected_data.update({'gateway': share_network.get('gateway')})
-            if mtu_support:
-                share_network.update({'mtu': 1509})
-                expected_data.update({'mtu': share_network.get('mtu')})
-            if nova_net_support:
-                share_network.update({'nova_net_id': 'fake_nova_net_id'})
-                expected_data.update({'nova_net_id': None})
+            if subnets_support:
+                share_network.update({'share_network_subnets': []})
+                expected_data.update({'share_network_subnets': []})
+            else:
+                if default_net_info_support:
+                    network_data = {
+                        'neutron_net_id': share_network.get('neutron_net_id'),
+                        'neutron_subnet_id': share_network.get(
+                            'neutron_subnet_id'),
+                        'network_type': share_network.get('network_type'),
+                        'segmentation_id': share_network.get(
+                            'segmentation_id'),
+                        'cidr': share_network.get('cidr'),
+                        'ip_version': share_network.get('ip_version'),
+                    }
+                    expected_data.update(network_data)
+                if gateway_support:
+                    share_network.update({'gateway': 'fake_gateway'})
+                    expected_data.update({'gateway':
+                                          share_network.get('gateway')})
+                if mtu_support:
+                    share_network.update({'mtu': 1509})
+                    expected_data.update({'mtu': share_network.get('mtu')})
+                if nova_net_support:
+                    share_network.update({'nova_net_id': 'fake_nova_net_id'})
+                    expected_data.update({'nova_net_id': None})
             expected_networks_list.append(expected_data)
         expected = {'share_networks': expected_networks_list}
 
@@ -148,7 +183,7 @@ class ViewBuilderTestCase(test.TestCase):
              {'id': 'id2', 'name': 'name2',
               'fake': 'I should not be returned'}]
         ],
-        set(["1.0", "2.0", "2.18", "2.20", "2.25", "2.26",
+        set(["1.0", "2.0", "2.18", "2.20", "2.25", "2.26", "2.49",
              api_version._MAX_API_VERSION]))
     )
     @ddt.unpack

manila/tests/db/migrations/alembic/migrations_data_checks.py

@@ -34,6 +34,7 @@ See BaseMigrationChecks class for more information.
 """
 
 import abc
+import copy
 import datetime
 
 from oslo_db import exception as oslo_db_exc
@@ -2803,3 +2804,116 @@ class ShareServerIsAutoDeletableAndIdentifierChecks(BaseMigrationChecks):
         for ss in engine.execute(ss_table.select()):
             self.test_case.assertFalse(hasattr(ss, 'is_auto_deletable'))
             self.test_case.assertFalse(hasattr(ss, 'identifier'))
+
+
+@map_to_migration('805685098bd2')
+class ShareNetworkSubnetMigrationChecks(BaseMigrationChecks):
+
+    user_id = '6VFQ87wnV24lg1c2q1q0lJkTbQBPFZ1m4968'
+    project_id = '19HAW8w58yeUPBy8zGex4EGulWZHd8zZGtHk'
+    share_network = {
+        'id': uuidutils.generate_uuid(),
+        'user_id': user_id,
+        'project_id': project_id,
+        'neutron_net_id': uuidutils.generate_uuid(),
+        'neutron_subnet_id': uuidutils.generate_uuid(),
+        'cidr': '203.0.113.0/24',
+        'ip_version': 4,
+        'network_type': 'vxlan',
+        'segmentation_id': 100,
+        'gateway': 'fake_gateway',
+        'mtu': 1500,
+    }
+
+    share_networks = [share_network]
+
+    sns_table_name = 'share_network_subnets'
+    sn_table_name = 'share_networks'
+    ss_table_name = 'share_servers'
+
+    expected_keys = ['neutron_net_id', 'neutron_subnet_id', 'cidr',
+                     'ip_version', 'network_type', 'segmentation_id',
+                     'gateway', 'mtu']
+
+    def _setup_data_for_empty_neutron_net_and_subnet_id_test(self, network):
+        network['id'] = uuidutils.generate_uuid()
+        for key in self.expected_keys:
+            network[key] = None
+        return network
+
+    def setup_upgrade_data(self, engine):
+        share_network_data_without_net_info = (
+            self._setup_data_for_empty_neutron_net_and_subnet_id_test(
+                copy.deepcopy(self.share_network)))
+        self.share_networks.append(share_network_data_without_net_info)
+        # Load the table to be used below
+        sn_table = utils.load_table(self.sn_table_name, engine)
+        ss_table = utils.load_table(self.ss_table_name, engine)
+
+        # Share server data
+        share_server_data = {
+            'host': 'acme@controller-ostk-0',
+            'status': 'active',
+        }
+
+        # Create share share networks and one share server for each of them
+        for network in self.share_networks:
+            share_server_data['share_network_id'] = network['id']
+            share_server_data['id'] = uuidutils.generate_uuid()
+            engine.execute(sn_table.insert(network))
+            engine.execute(ss_table.insert(share_server_data))
+
+    def check_upgrade(self, engine, data):
+        # Load the necessary tables
+        sn_table = utils.load_table(self.sn_table_name, engine)
+        sns_table = utils.load_table(self.sns_table_name, engine)
+        ss_table = utils.load_table(self.ss_table_name, engine)
+
+        for network in self.share_networks:
+            sn_record = engine.execute(sn_table.select().where(
+                sn_table.c.id == network['id'])).first()
+
+            for key in self.expected_keys:
+                self.test_case.assertFalse(hasattr(sn_record, key))
+
+            sns_record = engine.execute(sns_table.select().where(
+                sns_table.c.share_network_id == network['id'])).first()
+
+            for key in self.expected_keys:
+                self.test_case.assertTrue(hasattr(sns_record, key))
+                self.test_case.assertEqual(network[key], sns_record[key])
+
+            ss_record = (
+                engine.execute(
+                    ss_table.select().where(
+                        ss_table.c.share_network_subnet_id == sns_record['id'])
+                ).first())
+
+            self.test_case.assertIs(
+                True, hasattr(ss_record, 'share_network_subnet_id'))
+            self.test_case.assertEqual(
+                ss_record['share_network_subnet_id'], sns_record['id'])
+            self.test_case.assertIs(
+                False, hasattr(ss_record, 'share_network_id'))
+
+    def check_downgrade(self, engine):
+        sn_table = utils.load_table(self.sn_table_name, engine)
+
+        # Check if the share network table contains the expected keys
+        for sn in engine.execute(sn_table.select()):
+            for key in self.expected_keys:
+                self.test_case.assertTrue(hasattr(sn, key))
+
+        ss_table = utils.load_table(self.ss_table_name, engine)
+        for network in self.share_networks:
+            for ss in engine.execute(ss_table.select().where(
+                    ss_table.c.share_network_id == network['id'])):
+                self.test_case.assertFalse(hasattr(ss,
+                                                   'share_network_subnet_id'))
+                self.test_case.assertTrue(hasattr(ss, 'share_network_id'))
+                self.test_case.assertEqual(network['id'], ss['id'])
+
+        # Check if the created table doesn't exists anymore
+        self.test_case.assertRaises(
+            sa_exc.NoSuchTableError,
+            utils.load_table, self.sns_table_name, engine)

manila/tests/db/sqlalchemy/test_api.py

@@ -577,7 +577,7 @@ class ShareDatabaseAPITestCase(test.TestCase):
         db_utils.create_share_replica(share_id=share_2['id'])
         expected_ss_keys = {
             'backend_details', 'host', 'id',
-            'share_network_id', 'status',
+            'share_network_subnet_id', 'status',
         }
         expected_share_keys = {
             'project_id', 'share_type_id', 'display_name',
@@ -625,7 +625,7 @@ class ShareDatabaseAPITestCase(test.TestCase):
             share_server_id=share_server['id'])
         expected_ss_keys = {
             'backend_details', 'host', 'id',
-            'share_network_id', 'status',
+            'share_network_subnet_id', 'status',
         }
         expected_share_keys = {
             'project_id', 'share_type_id', 'display_name',
@@ -690,7 +690,7 @@ class ShareDatabaseAPITestCase(test.TestCase):
         session = db_api.get_session()
         expected_ss_keys = {
             'backend_details', 'host', 'id',
-            'share_network_id', 'status',
+            'share_network_subnet_id', 'status',
         }
         expected_share_keys = {
             'project_id', 'share_type_id', 'display_name',
@@ -778,7 +778,7 @@ class ShareDatabaseAPITestCase(test.TestCase):
         )
         expected_extra_keys = {
             'backend_details', 'host', 'id',
-            'share_network_id', 'status',
+            'share_network_subnet_id', 'status',
         }
         with session.begin():
             share_replica = db_api.share_replica_get(
@@ -1941,14 +1941,8 @@ class ShareNetworkDatabaseAPITestCase(BaseDatabaseAPITestCase):
     def setUp(self):
         super(ShareNetworkDatabaseAPITestCase, self).setUp()
         self.share_nw_dict = {'id': 'fake network id',
-                              'neutron_net_id': 'fake net id',
-                              'neutron_subnet_id': 'fake subnet id',
                               'project_id': self.fake_context.project_id,
                               'user_id': 'fake_user_id',
-                              'network_type': 'vlan',
-                              'segmentation_id': 1000,
-                              'cidr': '10.0.0.0/24',
-                              'ip_version': 4,
                               'name': 'whatever',
                               'description': 'fake description'}
 
@@ -2042,6 +2036,26 @@ class ShareNetworkDatabaseAPITestCase(BaseDatabaseAPITestCase):
             self._check_fields(expected=service,
                                actual=result['security_services'][index])
 
+    @ddt.data([{'id': 'fake_id_1', 'availability_zone_id': 'None'}],
+              [{'id': 'fake_id_2', 'availability_zone_id': 'None'},
+               {'id': 'fake_id_3', 'availability_zone_id': 'fake_az_id'}])
+    def test_get_with_subnets(self, subnets):
+        db_api.share_network_create(self.fake_context, self.share_nw_dict)
+
+        for subnet in subnets:
+            subnet['share_network_id'] = self.share_nw_dict['id']
+            db_api.share_network_subnet_create(self.fake_context, subnet)
+
+        result = db_api.share_network_get(self.fake_context,
+                                          self.share_nw_dict['id'])
+
+        self.assertEqual(len(subnets),
+                         len(result['share_network_subnets']))
+
+        for index, subnet in enumerate(subnets):
+            self._check_fields(expected=subnet,
+                               actual=result['share_network_subnets'][index])
+
     def test_get_not_found(self):
         self.assertRaises(exception.ShareNetworkNotFound,
                           db_api.share_network_get,
@@ -2092,7 +2106,7 @@ class ShareNetworkDatabaseAPITestCase(BaseDatabaseAPITestCase):
             share_network_dict = dict(self.share_nw_dict)
             fake_id = 'fake_id%s' % index
             share_network_dict.update({'id': fake_id,
-                                       'neutron_subnet_id': fake_id})
+                                       'project_id': fake_id})
             share_networks.append(share_network_dict)
             db_api.share_network_create(self.fake_context, share_network_dict)
             index += 1
@@ -2107,7 +2121,6 @@ class ShareNetworkDatabaseAPITestCase(BaseDatabaseAPITestCase):
         share_nw_dict2 = dict(self.share_nw_dict)
         share_nw_dict2['id'] = 'fake share nw id2'
         share_nw_dict2['project_id'] = 'fake project 2'
-        share_nw_dict2['neutron_subnet_id'] = 'fake subnet id2'
         db_api.share_network_create(self.fake_context, self.share_nw_dict)
         db_api.share_network_create(self.fake_context, share_nw_dict2)
 
@@ -2269,6 +2282,155 @@ class ShareNetworkDatabaseAPITestCase(BaseDatabaseAPITestCase):
         self.assertEqual(0, len(result['share_instances']))
 
 
+@ddt.ddt
+class ShareNetworkSubnetDatabaseAPITestCase(BaseDatabaseAPITestCase):
+
+    def __init__(self, *args, **kwargs):
+        super(ShareNetworkSubnetDatabaseAPITestCase, self).__init__(
+            *args, **kwargs)
+        self.fake_context = context.RequestContext(user_id='fake user',
+                                                   project_id='fake project',
+                                                   is_admin=False)
+
+    def setUp(self):
+        super(ShareNetworkSubnetDatabaseAPITestCase, self).setUp()
+        self.subnet_dict = {'id': 'fake network id',
+                            'neutron_net_id': 'fake net id',
+                            'neutron_subnet_id': 'fake subnet id',
+                            'network_type': 'vlan',
+                            'segmentation_id': 1000,
+                            'share_network_id': 'fake_id',
+                            'cidr': '10.0.0.0/24',
+                            'ip_version': 4,
+                            'availability_zone_id': None}
+
+    def test_create(self):
+        result = db_api.share_network_subnet_create(
+            self.fake_context, self.subnet_dict)
+        self._check_fields(expected=self.subnet_dict, actual=result)
+
+    def test_create_duplicated_id(self):
+        db_api.share_network_subnet_create(self.fake_context, self.subnet_dict)
+
+        self.assertRaises(db_exception.DBDuplicateEntry,
+                          db_api.share_network_subnet_create,
+                          self.fake_context,
+                          self.subnet_dict)
+
+    def test_get(self):
+        db_api.share_network_subnet_create(self.fake_context, self.subnet_dict)
+
+        result = db_api.share_network_subnet_get(self.fake_context,
+                                                 self.subnet_dict['id'])
+        self._check_fields(expected=self.subnet_dict, actual=result)
+
+    @ddt.data([{'id': 'fake_id_1', 'identifier': 'fake_identifier',
+                'host': 'fake_host'}],
+              [{'id': 'fake_id_2', 'identifier': 'fake_identifier',
+                'host': 'fake_host'},
+               {'id': 'fake_id_3', 'identifier': 'fake_identifier',
+                'host': 'fake_host'}])
+    def test_get_with_share_servers(self, share_servers):
+        db_api.share_network_subnet_create(self.fake_context,
+                                           self.subnet_dict)
+
+        for share_server in share_servers:
+            share_server['share_network_subnet_id'] = self.subnet_dict['id']
+            db_api.share_server_create(self.fake_context, share_server)
+
+        result = db_api.share_network_subnet_get(self.fake_context,
+                                                 self.subnet_dict['id'])
+
+        self.assertEqual(len(share_servers),
+                         len(result['share_servers']))
+
+        for index, share_server in enumerate(share_servers):
+            self._check_fields(expected=share_server,
+                               actual=result['share_servers'][index])
+
+    def test_get_not_found(self):
+        db_api.share_network_subnet_create(self.fake_context, self.subnet_dict)
+
+        self.assertRaises(exception.ShareNetworkSubnetNotFound,
+                          db_api.share_network_subnet_get,
+                          self.fake_context,
+                          'fake_id')
+
+    def test_delete(self):
+        db_api.share_network_subnet_create(self.fake_context, self.subnet_dict)
+        db_api.share_network_subnet_delete(self.fake_context,
+                                           self.subnet_dict['id'])
+
+        self.assertRaises(exception.ShareNetworkSubnetNotFound,
+                          db_api.share_network_subnet_delete,
+                          self.fake_context,
+                          self.subnet_dict['id'])
+
+    def test_delete_not_found(self):
+        self.assertRaises(exception.ShareNetworkSubnetNotFound,
+                          db_api.share_network_subnet_delete,
+                          self.fake_context,
+                          'fake_id')
+
+    def test_update(self):
+        update_dict = {
+            'gateway': 'fake_gateway',
+            'ip_version': 6,
+            'mtu': ''
+        }
+
+        db_api.share_network_subnet_create(self.fake_context, self.subnet_dict)
+        db_api.share_network_subnet_update(
+            self.fake_context, self.subnet_dict['id'], update_dict)
+
+        result = db_api.share_network_subnet_get(self.fake_context,
+                                                 self.subnet_dict['id'])
+        self._check_fields(expected=update_dict, actual=result)
+
+    def test_update_not_found(self):
+        self.assertRaises(exception.ShareNetworkSubnetNotFound,
+                          db_api.share_network_subnet_update,
+                          self.fake_context,
+                          self.subnet_dict['id'],
+                          {})
+
+    @ddt.data([{'id': 'sn_id1', 'project_id': 'fake', 'user_id': 'fake'}],
+              [{'id': 'fake_id', 'project_id': 'fake', 'user_id': 'fake'},
+               {'id': 'sn_id2', 'project_id': 'fake', 'user_id': 'fake'}])
+    def test_get_all_by_share_network(self, share_networks):
+
+        for idx, share_network in enumerate(share_networks):
+            self.subnet_dict['share_network_id'] = share_network['id']
+            self.subnet_dict['id'] = 'fake_id%s' % idx
+
+            db_api.share_network_create(self.fake_context, share_network)
+            db_api.share_network_subnet_create(self.fake_context,
+                                               self.subnet_dict)
+        for share_network in share_networks:
+            subnets = db_api.share_network_subnet_get_all_by_share_network(
+                self.fake_context, share_network['id'])
+            self.assertEqual(1, len(subnets))
+
+    def test_get_by_availability_zone_id(self):
+        az = db_api.availability_zone_create_if_not_exist(self.fake_context,
+                                                          'fake_zone_id')
+        self.subnet_dict['availability_zone_id'] = az['id']
+        db_api.share_network_subnet_create(self.fake_context, self.subnet_dict)
+
+        result = db_api.share_network_subnet_get_by_availability_zone_id(
+            self.fake_context, self.subnet_dict['share_network_id'], az['id'])
+
+        self._check_fields(expected=self.subnet_dict, actual=result)
+
+    def test_get_default_subnet(self):
+        db_api.share_network_subnet_create(self.fake_context, self.subnet_dict)
+
+        result = db_api.share_network_subnet_get_default_subnet(
+            self.fake_context, self.subnet_dict['share_network_id'])
+
+        self._check_fields(expected=self.subnet_dict, actual=result)
+
+
 @ddt.ddt
 class SecurityServiceDatabaseAPITestCase(BaseDatabaseAPITestCase):
 
@@ -2437,7 +2599,8 @@ class ShareServerDatabaseAPITestCase(test.TestCase):
         expected = db_utils.create_share_server()
         server = db_api.share_server_get(self.ctxt, expected['id'])
         self.assertEqual(expected['id'], server['id'])
-        self.assertEqual(expected.share_network_id, server.share_network_id)
+        self.assertEqual(expected.share_network_subnet_id,
+                         server.share_network_subnet_id)
         self.assertEqual(expected.host, server.host)
         self.assertEqual(expected.status, server.status)
 
@@ -2449,7 +2612,8 @@ class ShareServerDatabaseAPITestCase(test.TestCase):
     def test_create(self):
         server = db_utils.create_share_server()
         self.assertTrue(server['id'])
-        self.assertEqual(server.share_network_id, server['share_network_id'])
+        self.assertEqual(server.share_network_subnet_id,
+                         server['share_network_subnet_id'])
         self.assertEqual(server.host, server['host'])
         self.assertEqual(server.status, server['status'])
 
@@ -2488,21 +2652,31 @@ class ShareServerDatabaseAPITestCase(test.TestCase):
                           self.ctxt, fake_id, {})
 
     def test_get_all_by_host_and_share_net_valid(self):
-        valid = {
+        subnet_1 = {
+            'id': '1',
             'share_network_id': '1',
+        }
+        subnet_2 = {
+            'id': '2',
+            'share_network_id': '2',
+        }
+        valid = {
+            'share_network_subnet_id': '1',
             'host': 'host1',
             'status': constants.STATUS_ACTIVE,
         }
         invalid = {
-            'share_network_id': '1',
+            'share_network_subnet_id': '2',
             'host': 'host1',
             'status': constants.STATUS_ERROR,
         }
         other = {
-            'share_network_id': '2',
+            'share_network_subnet_id': '1',
             'host': 'host2',
             'status': constants.STATUS_ACTIVE,
         }
+        db_utils.create_share_network_subnet(**subnet_1)
+        db_utils.create_share_network_subnet(**subnet_2)
         valid = db_utils.create_share_server(**valid)
         db_utils.create_share_server(**invalid)
         db_utils.create_share_server(**other)
@@ -2572,7 +2746,7 @@ class ShareServerDatabaseAPITestCase(test.TestCase):
 
     def test_get_with_details(self):
         values = {
-            'share_network_id': 'fake-share-net-id',
+            'share_network_subnet_id': 'fake-share-net-id',
             'host': 'hostname',
             'status': constants.STATUS_ACTIVE,
         }
@@ -2584,7 +2758,8 @@ class ShareServerDatabaseAPITestCase(test.TestCase):
         db_api.share_server_backend_details_set(self.ctxt, srv_id, details)
         server = db_api.share_server_get(self.ctxt, srv_id)
         self.assertEqual(srv_id, server['id'])
-        self.assertEqual(values['share_network_id'], server.share_network_id)
+        self.assertEqual(values['share_network_subnet_id'],
+                         server.share_network_subnet_id)
         self.assertEqual(values['host'], server.host)
         self.assertEqual(values['status'], server.status)
         self.assertDictMatch(server['backend_details'], details)

manila/tests/db_utils.py

@@ -212,7 +212,7 @@ def create_share_server(**kwargs):
     backend_details = kwargs.pop('backend_details', {})
     srv = {
         'host': 'host1',
-        'share_network_id': 'fake_srv_id',
+        'share_network_subnet_id': 'fake_srv_id',
         'status': constants.STATUS_ACTIVE
     }
     share_srv = _create_db_row(db.share_server_create, srv, kwargs)
@@ -251,19 +251,31 @@ def create_share_network(**kwargs):
     net = {
         'user_id': 'fake',
         'project_id': 'fake',
-        'neutron_net_id': 'fake-neutron-net',
-        'neutron_subnet_id': 'fake-neutron-subnet',
         'status': 'new',
-        'network_type': 'vlan',
-        'segmentation_id': 1000,
-        'cidr': '10.0.0.0/24',
-        'ip_version': 4,
         'name': 'whatever',
         'description': 'fake description',
     }
     return _create_db_row(db.share_network_create, net, kwargs)
 
 
+def create_share_network_subnet(**kwargs):
+    """Create a share network subnet object."""
+    subnet = {
+        'id': 'fake_sns_id',
+        'neutron_net_id': 'fake-neutron-net',
+        'neutron_subnet_id': 'fake-neutron-subnet',
+        'network_type': 'vlan',
+        'segmentation_id': 1000,
+        'cidr': '10.0.0.0/24',
+        'ip_version': 4,
+        'availability_zone_id': 'fake_zone_id',
+        'share_network_id': 'fake_sn_id',
+        'gateway': None,
+        'mtu': None
+    }
+    return _create_db_row(db.share_network_subnet_create, subnet, kwargs)
+
+
 def create_security_service(**kwargs):
     share_network_id = kwargs.pop('share_network_id', None)
     service = {

manila/tests/fake_share.py

@@ -302,7 +302,7 @@ def fake_share_server_get():
         'status': constants.STATUS_ACTIVE,
         'updated_at': None,
         'host': 'fake_host',
-        'share_network_id': 'fake_sn_id',
+        'share_network_subnet_id': 'fake_sn_id',
         'share_network_name': 'fake_sn_name',
         'project_id': 'fake_project_id',
         'id': 'fake_share_server_id',

manila/tests/network/neutron/test_neutron_plugin.py

@@ -79,15 +79,10 @@ fake_neutron_subnet = {
     'gateway_ip': '10.0.0.1',
 }
 
-fake_share_network = {
-    'id': 'fake nw info id',
+fake_share_network_subnet = {
+    'id': 'fake nw subnet id',
     'neutron_subnet_id': fake_neutron_network['subnets'][0],
     'neutron_net_id': fake_neutron_network['id'],
-    'project_id': 'fake project id',
-    'status': 'test_subnet_status',
-    'name': 'fake name',
-    'description': 'fake description',
-    'security_services': [],
     'network_type': 'fake_network_type',
     'segmentation_id': 1234,
     'ip_version': 4,
@@ -96,6 +91,16 @@ fake_share_network = {
     'mtu': 1509,
 }
 
+fake_share_network = {
+    'id': 'fake nw info id',
+    'project_id': 'fake project id',
+    'status': 'test_subnet_status',
+    'name': 'fake name',
+    'description': 'fake description',
+    'security_services': [],
+    'subnets': [fake_share_network_subnet],
+}
+
 fake_share_server = {
     'id': 'fake nw info id',
     'status': 'test_server_status',
@@ -111,11 +116,11 @@ fake_network_allocation = {
     'mac_address': fake_neutron_port['mac_address'],
     'status': constants.STATUS_ACTIVE,
     'label': 'user',
-    'network_type': fake_share_network['network_type'],
-    'segmentation_id': fake_share_network['segmentation_id'],
-    'ip_version': fake_share_network['ip_version'],
-    'cidr': fake_share_network['cidr'],
-    'gateway': fake_share_network['gateway'],
+    'network_type': fake_share_network_subnet['network_type'],
+    'segmentation_id': fake_share_network_subnet['segmentation_id'],
+    'ip_version': fake_share_network_subnet['ip_version'],
+    'cidr': fake_share_network_subnet['cidr'],
+    'gateway': fake_share_network_subnet['gateway'],
     'mtu': 1509,
 }
 
@@ -230,17 +235,18 @@ class NeutronNetworkPluginTest(test.TestCase):
                 self.fake_context,
                 fake_share_server,
                 fake_share_network,
+                fake_share_network_subnet,
                 allocation_info={'count': 1})
 
             has_provider_nw_ext.assert_any_call()
             save_nw_data.assert_called_once_with(self.fake_context,
-                                                 fake_share_network)
+                                                 fake_share_network_subnet)
             save_subnet_data.assert_called_once_with(self.fake_context,
-                                                     fake_share_network)
+                                                     fake_share_network_subnet)
             self.plugin.neutron_api.create_port.assert_called_once_with(
                 fake_share_network['project_id'],
-                network_id=fake_share_network['neutron_net_id'],
-                subnet_id=fake_share_network['neutron_subnet_id'],
+                network_id=fake_share_network_subnet['neutron_net_id'],
+                subnet_id=fake_share_network_subnet['neutron_subnet_id'],
                 device_owner='manila:share',
                 device_id=fake_share_network['id'])
             db_api.network_allocation_create.assert_called_once_with(
@@ -270,22 +276,22 @@ class NeutronNetworkPluginTest(test.TestCase):
         with mock.patch.object(self.plugin.neutron_api, 'create_port',
                                mock.Mock(return_value=fake_neutron_port)):
             self.plugin.allocate_network(
-                self.fake_context,
-                fake_share_server,
-                fake_share_network,
-                count=2)
+                self.fake_context, fake_share_server, fake_share_network,
+                fake_share_network_subnet, count=2)
 
             neutron_api_calls = [
-                mock.call(fake_share_network['project_id'],
-                          network_id=fake_share_network['neutron_net_id'],
-                          subnet_id=fake_share_network['neutron_subnet_id'],
-                          device_owner='manila:share',
-                          device_id=fake_share_network['id']),
-                mock.call(fake_share_network['project_id'],
-                          network_id=fake_share_network['neutron_net_id'],
-                          subnet_id=fake_share_network['neutron_subnet_id'],
-                          device_owner='manila:share',
-                          device_id=fake_share_network['id']),
+                mock.call(
+                    fake_share_network['project_id'],
+                    network_id=fake_share_network_subnet['neutron_net_id'],
+                    subnet_id=fake_share_network_subnet['neutron_subnet_id'],
+                    device_owner='manila:share',
+                    device_id=fake_share_network['id']),
+                mock.call(
+                    fake_share_network['project_id'],
+                    network_id=fake_share_network_subnet['neutron_net_id'],
+                    subnet_id=fake_share_network_subnet['neutron_subnet_id'],
+                    device_owner='manila:share',
+                    device_id=fake_share_network['id']),
             ]
             db_api_calls = [
                 mock.call(self.fake_context, fake_network_allocation),
@@ -342,7 +348,7 @@ class NeutronNetworkPluginTest(test.TestCase):
         neutron_ports[3]['fixed_ips'][0]['ip_address'] = '192.168.0.13'
         neutron_ports[3]['id'] = 'fake_port_id_3'
 
-        self.mock_object(self.plugin, '_verify_share_network')
+        self.mock_object(self.plugin, '_verify_share_network_subnet')
         self.mock_object(self.plugin, '_store_neutron_net_info')
 
         self.mock_object(self.plugin.neutron_api, 'list_ports',
@@ -366,14 +372,15 @@ class NeutronNetworkPluginTest(test.TestCase):
 
         result = self.plugin.manage_network_allocations(
             self.fake_context, allocations, fake_share_server,
-            fake_share_network)
+            share_network_subnet=fake_share_network_subnet)
 
         self.assertEqual(['fd12::2000'], result)
 
         self.plugin.neutron_api.list_ports.assert_called_once_with(
-            network_id=fake_share_network['neutron_net_id'],
+            network_id=fake_share_network_subnet['neutron_net_id'],
             device_owner='manila:share',
-            fixed_ips='subnet_id=' + fake_share_network['neutron_subnet_id'])
+            fixed_ips='subnet_id=' +
+                      fake_share_network_subnet['neutron_subnet_id'])
 
         db_api.network_allocation_get.assert_has_calls([
             mock.call(self.fake_context, 'fake_port_id_1', read_deleted=False),
@@ -385,15 +392,15 @@ class NeutronNetworkPluginTest(test.TestCase):
         port_dict_list = [{
             'share_server_id': fake_share_server['id'],
             'ip_address': x,
-            'gateway': fake_share_network['gateway'],
+            'gateway': fake_share_network_subnet['gateway'],
             'mac_address': fake_neutron_port['mac_address'],
             'status': constants.STATUS_ACTIVE,
             'label': 'user',
-            'network_type': fake_share_network['network_type'],
-            'segmentation_id': fake_share_network['segmentation_id'],
-            'ip_version': fake_share_network['ip_version'],
-            'cidr': fake_share_network['cidr'],
-            'mtu': fake_share_network['mtu'],
+            'network_type': fake_share_network_subnet['network_type'],
+            'segmentation_id': fake_share_network_subnet['segmentation_id'],
+            'ip_version': fake_share_network_subnet['ip_version'],
+            'cidr': fake_share_network_subnet['cidr'],
+            'mtu': fake_share_network_subnet['mtu'],
         } for x in ['192.168.0.11', '192.168.0.12']]
 
         if side_effect:
@@ -415,11 +422,11 @@ class NeutronNetworkPluginTest(test.TestCase):
                           port_dict_list[1], read_deleted=True)
             ])
 
-        self.plugin._verify_share_network.assert_called_once_with(
-            fake_share_server['id'], fake_share_network)
+        self.plugin._verify_share_network_subnet.assert_called_once_with(
+            fake_share_server['id'], fake_share_network_subnet)
 
         self.plugin._store_neutron_net_info(
-            self.fake_context, fake_share_network)
+            self.fake_context, fake_share_network_subnet)
 
     def test__get_ports_respective_to_ips_multiple_fixed_ips(self):
         self.mock_object(plugin.LOG, 'warning')
@@ -462,7 +469,8 @@ class NeutronNetworkPluginTest(test.TestCase):
         self.assertRaises(
             exception.ManageShareServerError,
             self.plugin.manage_network_allocations, self.fake_context,
-            allocations, fake_share_server, fake_share_network)
+            allocations, fake_share_server, fake_share_network,
+            fake_share_network_subnet)
 
         db_api.network_allocation_get.assert_called_once_with(
             self.fake_context, 'fake_port_id_1', read_deleted=False)
@@ -533,7 +541,7 @@ class NeutronNetworkPluginTest(test.TestCase):
             {'status': constants.STATUS_ERROR})
         delete_port.stop()
 
-    @mock.patch.object(db_api, 'share_network_update', mock.Mock())
+    @mock.patch.object(db_api, 'share_network_subnet_update', mock.Mock())
     def test_save_neutron_network_data(self):
         neutron_nw_info = {
             'provider:network_type': 'vlan',
@@ -550,16 +558,16 @@ class NeutronNetworkPluginTest(test.TestCase):
                                'get_network',
                                mock.Mock(return_value=neutron_nw_info)):
             self.plugin._save_neutron_network_data(self.fake_context,
-                                                   fake_share_network)
+                                                   fake_share_network_subnet)
 
             self.plugin.neutron_api.get_network.assert_called_once_with(
-                fake_share_network['neutron_net_id'])
-            self.plugin.db.share_network_update.assert_called_once_with(
+                fake_share_network_subnet['neutron_net_id'])
+            self.plugin.db.share_network_subnet_update.assert_called_once_with(
                 self.fake_context,
-                fake_share_network['id'],
+                fake_share_network_subnet['id'],
                 share_nw_update_dict)
 
-    @mock.patch.object(db_api, 'share_network_update', mock.Mock())
+    @mock.patch.object(db_api, 'share_network_subnet_update', mock.Mock())
     def test_save_neutron_network_data_multi_segment(self):
         share_nw_update_dict = {
             'network_type': 'vlan',
@@ -577,13 +585,13 @@ class NeutronNetworkPluginTest(test.TestCase):
 
         with test_utils.create_temp_config_with_opts(config_data):
             self.plugin._save_neutron_network_data(self.fake_context,
-                                                   fake_share_network)
+                                                   fake_share_network_subnet)
 
         self.plugin.neutron_api.get_network.assert_called_once_with(
-            fake_share_network['neutron_net_id'])
-        self.plugin.db.share_network_update.assert_called_once_with(
+            fake_share_network_subnet['neutron_net_id'])
+        self.plugin.db.share_network_subnet_update.assert_called_once_with(
             self.fake_context,
-            fake_share_network['id'],
+            fake_share_network_subnet['id'],
             share_nw_update_dict)
 
     @mock.patch.object(db_api, 'share_network_update', mock.Mock())
@@ -600,7 +608,7 @@ class NeutronNetworkPluginTest(test.TestCase):
         with test_utils.create_temp_config_with_opts(config_data):
             self.assertRaises(exception.NetworkBadConfigurationException,
                               self.plugin._save_neutron_network_data,
-                              self.fake_context, fake_share_network)
+                              self.fake_context, fake_share_network_subnet)
 
     @mock.patch.object(db_api, 'share_network_update', mock.Mock())
     def test_save_neutron_network_data_multi_segment_without_cfg(self):
@@ -609,9 +617,9 @@ class NeutronNetworkPluginTest(test.TestCase):
 
         self.assertRaises(exception.NetworkBadConfigurationException,
                           self.plugin._save_neutron_network_data,
-                          self.fake_context, fake_share_network)
+                          self.fake_context, fake_share_network_subnet)
 
-    @mock.patch.object(db_api, 'share_network_update', mock.Mock())
+    @mock.patch.object(db_api, 'share_network_subnet_update', mock.Mock())
     def test_save_neutron_subnet_data(self):
         neutron_subnet_info = fake_neutron_subnet
         subnet_value = {
@@ -624,13 +632,13 @@ class NeutronNetworkPluginTest(test.TestCase):
                                'get_subnet',
                                mock.Mock(return_value=neutron_subnet_info)):
             self.plugin._save_neutron_subnet_data(self.fake_context,
-                                                  fake_share_network)
+                                                  fake_share_network_subnet)
 
             self.plugin.neutron_api.get_subnet.assert_called_once_with(
-                fake_share_network['neutron_subnet_id'])
-            self.plugin.db.share_network_update.assert_called_once_with(
+                fake_share_network_subnet['neutron_subnet_id'])
+            self.plugin.db.share_network_subnet_update.assert_called_once_with(
                 self.fake_context,
-                fake_share_network['id'],
+                fake_share_network_subnet['id'],
                 subnet_value)
 
     def test_has_network_provider_extension_true(self):
@@ -757,13 +765,13 @@ class NeutronSingleNetworkPluginTest(test.TestCase):
             'neutron_subnet_id': instance.subnet,
         }
         self.mock_object(
-            instance.db, 'share_network_update',
+            instance.db, 'share_network_subnet_update',
             mock.Mock(return_value='foo'))
 
         instance._update_share_network_net_data(
             self.context, share_network_input)
 
-        instance.db.share_network_update.assert_called_once_with(
+        instance.db.share_network_subnet_update.assert_called_once_with(
             self.context, share_network_input['id'], share_network_result)
 
     @ddt.data(
@@ -793,23 +801,24 @@ class NeutronSingleNetworkPluginTest(test.TestCase):
             fake_neutron_port, fake_neutron_port]
         instance = self._get_neutron_network_plugin_instance()
         share_server = 'fake_share_server'
-        share_network = 'fake_share_network'
-        share_network_upd = 'updated_fake_share_network'
+        share_network = {'id': 'fake_share_network'}
+        share_network_subnet = {'id': 'fake_share_network_subnet'}
+        share_network_subnet_upd = {'id': 'updated_fake_share_network_subnet'}
         count = 2
         device_owner = 'fake_device_owner'
         self.mock_object(
             instance, '_update_share_network_net_data',
-            mock.Mock(return_value=share_network_upd))
+            mock.Mock(return_value=share_network_subnet_upd))
 
         instance.allocate_network(
-            self.context, share_server, share_network, count=count,
-            device_owner=device_owner)
+            self.context, share_server, share_network, share_network_subnet,
+            count=count, device_owner=device_owner)
 
         instance._update_share_network_net_data.assert_called_once_with(
-            self.context, share_network)
+            self.context, share_network_subnet)
         plugin.NeutronNetworkPlugin.allocate_network.assert_called_once_with(
-            self.context, share_server, share_network_upd, count=count,
-            device_owner=device_owner)
+            self.context, share_server, share_network,
+            share_network_subnet_upd, count=count, device_owner=device_owner)
 
     def test_manage_network_allocations(self):
         allocations = ['192.168.10.10', 'fd12::2000']
@@ -819,18 +828,20 @@ class NeutronSingleNetworkPluginTest(test.TestCase):
             mock.Mock(return_value=['fd12::2000']))
         self.mock_object(
             instance, '_update_share_network_net_data',
-            mock.Mock(return_value=fake_share_network))
+            mock.Mock(return_value=fake_share_network_subnet))
 
         result = instance.manage_network_allocations(
-            self.context, allocations, fake_share_server, fake_share_network)
+            self.context, allocations, fake_share_server, fake_share_network,
+            fake_share_network_subnet)
 
         self.assertEqual(['fd12::2000'], result)
 
         instance._update_share_network_net_data.assert_called_once_with(
-            self.context, fake_share_network)
+            self.context, fake_share_network_subnet)
 
         parent.assert_called_once_with(
-            self.context, allocations, fake_share_server, fake_share_network)
+            self.context, allocations, fake_share_server, fake_share_network,
+            fake_share_network_subnet)
 
     def test_manage_network_allocations_admin(self):
         allocations = ['192.168.10.10', 'fd12::2000']
@@ -846,12 +857,14 @@ class NeutronSingleNetworkPluginTest(test.TestCase):
         }
 
         result = instance.manage_network_allocations(
-            self.context, allocations, fake_share_server, None)
+            self.context, allocations, fake_share_server,
+            share_network_subnet=share_network_dict)
 
         self.assertEqual(['fd12::2000'], result)
 
         parent.assert_called_once_with(
-            self.context, allocations, fake_share_server, share_network_dict)
+            self.context, allocations, fake_share_server, None,
+            share_network_dict)
 
 
 @ddt.ddt
@@ -943,18 +956,19 @@ class NeutronBindNetworkPluginTest(test.TestCase):
                 self.fake_context,
                 fake_share_server,
                 fake_share_network,
+                fake_share_network_subnet,
                 allocation_info={'count': 1})
 
             self.bind_plugin._has_provider_network_extension.assert_any_call()
             save_nw_data.assert_called_once_with(self.fake_context,
-                                                 fake_share_network)
+                                                 fake_share_network_subnet)
             save_subnet_data.assert_called_once_with(self.fake_context,
-                                                     fake_share_network)
+                                                     fake_share_network_subnet)
             expected_kwargs = {
                 'binding:vnic_type': 'baremetal',
                 'host_id': 'foohost1',
-                'network_id': fake_share_network['neutron_net_id'],
-                'subnet_id': fake_share_network['neutron_subnet_id'],
+                'network_id': fake_share_network_subnet['neutron_net_id'],
+                'subnet_id': fake_share_network_subnet['neutron_subnet_id'],
                 'device_owner': 'manila:share',
                 'device_id': fake_share_network['id'],
             }
@@ -1020,13 +1034,14 @@ class NeutronBindNetworkPluginTest(test.TestCase):
         self.mock_object(self.bind_plugin.neutron_api, 'get_subnet')
         self.bind_plugin.neutron_api.get_subnet.return_value = (
             fake_neutron_subnet)
-        self.mock_object(db_api, 'share_network_update')
+        self.mock_object(db_api, 'share_network_subnet_update')
 
         with mock.patch.object(self.bind_plugin.neutron_api, 'create_port',
                                mock.Mock(return_value=fake_neutron_port)):
             self.bind_plugin.allocate_network(
                 self.fake_context,
                 fake_share_server,
+                fake_share_network,
                 self.fake_share_network_multi,
                 allocation_info={'count': 1})
 
@@ -1044,7 +1059,7 @@ class NeutronBindNetworkPluginTest(test.TestCase):
             db_api.network_allocation_create.assert_called_once_with(
                 self.fake_context,
                 fake_network_allocation_multi)
-            db_api.share_network_update.assert_called_with(
+            db_api.share_network_subnet_update.assert_called_with(
                 self.fake_context,
                 fake_share_network_multi['id'],
                 network_update_data)
@@ -1143,14 +1158,14 @@ class NeutronBindNetworkPluginTest(test.TestCase):
         instance = self._get_neutron_network_plugin_instance(config_data)
 
         create_args = instance._get_port_create_args(fake_share_server,
-                                                     fake_share_network,
+                                                     fake_share_network_subnet,
                                                      fake_device_owner)
 
         expected_create_args = {
             'binding:vnic_type': 'baremetal',
             'host_id': fake_host_id,
-            'network_id': fake_share_network['neutron_net_id'],
-            'subnet_id': fake_share_network['neutron_subnet_id'],
+            'network_id': fake_share_network_subnet['neutron_net_id'],
+            'subnet_id': fake_share_network_subnet['neutron_subnet_id'],
             'device_owner': 'manila:' + fake_device_owner,
             'device_id': fake_share_server['id']
         }
@@ -1197,14 +1212,14 @@ class NeutronBindNetworkPluginTest(test.TestCase):
         instance = self._get_neutron_network_plugin_instance(config_data)
 
         create_args = instance._get_port_create_args(fake_share_server,
-                                                     fake_share_network,
+                                                     fake_share_network_subnet,
                                                      fake_device_owner)
 
         expected_create_args = {
             'binding:vnic_type': 'baremetal',
             'host_id': fake_host_id,
-            'network_id': fake_share_network['neutron_net_id'],
-            'subnet_id': fake_share_network['neutron_subnet_id'],
+            'network_id': fake_share_network_subnet['neutron_net_id'],
+            'subnet_id': fake_share_network_subnet['neutron_subnet_id'],
             'device_owner': 'manila:' + fake_device_owner,
             'device_id': fake_share_server['id']
         }
@@ -1253,7 +1268,8 @@ class NeutronBindSingleNetworkPluginTest(test.TestCase):
             'port1', 'port2']
         instance = self._get_neutron_network_plugin_instance()
         share_server = 'fake_share_server'
-        share_network = {'neutron_net_id': {}}
+        share_network = {}
+        share_network_subnet = {'neutron_net_id': {}}
         share_network_upd = {'neutron_net_id': {'upd': True}}
         count = 2
         device_owner = 'fake_device_owner'
@@ -1263,14 +1279,14 @@ class NeutronBindSingleNetworkPluginTest(test.TestCase):
         self.mock_object(instance, '_wait_for_ports_bind', mock.Mock())
 
         instance.allocate_network(
-            self.context, share_server, share_network, count=count,
-            device_owner=device_owner)
+            self.context, share_server, share_network, share_network_subnet,
+            count=count, device_owner=device_owner)
 
         instance._update_share_network_net_data.assert_called_once_with(
-            self.context, share_network)
+            self.context, share_network_subnet)
         plugin.NeutronNetworkPlugin.allocate_network.assert_called_once_with(
-            self.context, share_server, share_network_upd, count=count,
-            device_owner=device_owner)
+            self.context, share_server, share_network, share_network_upd,
+            count=count, device_owner=device_owner)
         instance._wait_for_ports_bind.assert_called_once_with(
             ['port1', 'port2'], share_server)
 
@@ -1360,7 +1376,7 @@ class NeutronBindSingleNetworkPluginTest(test.TestCase):
 
     def test___update_share_network_net_data_different_values_empty(self):
         instance = self._get_neutron_single_network_plugin_instance()
-        share_network_input = {
+        share_network_subnet_input = {
             'id': 'fake_share_network_id',
         }
         share_network_result = {
@@ -1368,14 +1384,15 @@ class NeutronBindSingleNetworkPluginTest(test.TestCase):
             'neutron_subnet_id': instance.subnet,
         }
         self.mock_object(
-            instance.db, 'share_network_update',
+            instance.db, 'share_network_subnet_update',
             mock.Mock(return_value='foo'))
 
         instance._update_share_network_net_data(
-            self.context, share_network_input)
+            self.context, share_network_subnet_input)
 
-        instance.db.share_network_update.assert_called_once_with(
-            self.context, share_network_input['id'], share_network_result)
+        instance.db.share_network_subnet_update.assert_called_once_with(
+            self.context, share_network_subnet_input['id'],
+            share_network_result)
 
     @ddt.data(
         {'n': 'fake_net_id', 's': 'bar'},
@@ -1464,18 +1481,19 @@ class NeutronBindSingleNetworkPluginTest(test.TestCase):
                 self.fake_context,
                 fake_share_server,
                 fake_share_network,
+                fake_share_network_subnet,
                 allocation_info={'count': 1})
 
             self.bind_plugin._has_provider_network_extension.assert_any_call()
             save_nw_data.assert_called_once_with(self.fake_context,
-                                                 fake_share_network)
+                                                 fake_share_network_subnet)
             save_subnet_data.assert_called_once_with(self.fake_context,
-                                                     fake_share_network)
+                                                     fake_share_network_subnet)
             expected_kwargs = {
                 'binding:vnic_type': 'baremetal',
                 'host_id': 'foohost1',
-                'network_id': fake_share_network['neutron_net_id'],
-                'subnet_id': fake_share_network['neutron_subnet_id'],
+                'network_id': fake_share_network_subnet['neutron_net_id'],
+                'subnet_id': fake_share_network_subnet['neutron_subnet_id'],
                 'device_owner': 'manila:share',
                 'device_id': fake_share_network['id'],
             }
@@ -1575,14 +1593,14 @@ class NeutronBindSingleNetworkPluginTest(test.TestCase):
         instance = self._get_neutron_network_plugin_instance(config_data)
 
         create_args = instance._get_port_create_args(fake_share_server,
-                                                     fake_share_network,
+                                                     fake_share_network_subnet,
                                                      fake_device_owner)
 
         expected_create_args = {
             'binding:vnic_type': 'baremetal',
             'host_id': fake_host_id,
-            'network_id': fake_share_network['neutron_net_id'],
-            'subnet_id': fake_share_network['neutron_subnet_id'],
+            'network_id': fake_share_network_subnet['neutron_net_id'],
+            'subnet_id': fake_share_network_subnet['neutron_subnet_id'],
             'device_owner': 'manila:' + fake_device_owner,
             'device_id': fake_share_server['id']
         }
@@ -1629,14 +1647,14 @@ class NeutronBindSingleNetworkPluginTest(test.TestCase):
         instance = self._get_neutron_network_plugin_instance(config_data)
 
         create_args = instance._get_port_create_args(fake_share_server,
-                                                     fake_share_network,
+                                                     fake_share_network_subnet,
                                                      fake_device_owner)
 
         expected_create_args = {
             'binding:vnic_type': 'baremetal',
             'host_id': fake_host_id,
-            'network_id': fake_share_network['neutron_net_id'],
-            'subnet_id': fake_share_network['neutron_subnet_id'],
+            'network_id': fake_share_network_subnet['neutron_net_id'],
+            'subnet_id': fake_share_network_subnet['neutron_subnet_id'],
             'device_owner': 'manila:' + fake_device_owner,
             'device_id': fake_share_server['id']
         }
@@ -1690,20 +1708,21 @@ class NeutronBindNetworkPluginWithNormalTypeTest(test.TestCase):
                 self.fake_context,
                 fake_share_server,
                 fake_share_network,
+                fake_share_network_subnet,
                 allocation_info={'count': 1})
 
             self.bind_plugin._has_provider_network_extension.assert_any_call()
             save_nw_data.assert_called_once_with(self.fake_context,
-                                                 fake_share_network)
+                                                 fake_share_network_subnet)
             save_subnet_data.assert_called_once_with(self.fake_context,
-                                                     fake_share_network)
+                                                     fake_share_network_subnet)
             expected_kwargs = {
                 'binding:vnic_type': 'normal',
                 'host_id': 'foohost1',
-                'network_id': fake_share_network['neutron_net_id'],
-                'subnet_id': fake_share_network['neutron_subnet_id'],
+                'network_id': fake_share_network_subnet['neutron_net_id'],
+                'subnet_id': fake_share_network_subnet['neutron_subnet_id'],
                 'device_owner': 'manila:share',
-                'device_id': fake_share_network['id'],
+                'device_id': fake_share_server['id'],
             }
             self.bind_plugin.neutron_api.create_port.assert_called_once_with(
                 fake_share_network['project_id'], **expected_kwargs)
@@ -1776,18 +1795,19 @@ class NeutronBindSingleNetworkPluginWithNormalTypeTest(test.TestCase):
                 self.fake_context,
                 fake_share_server,
                 fake_share_network,
+                fake_share_network_subnet,
                 allocation_info={'count': 1})
 
             self.bind_plugin._has_provider_network_extension.assert_any_call()
             save_nw_data.assert_called_once_with(self.fake_context,
-                                                 fake_share_network)
+                                                 fake_share_network_subnet)
             save_subnet_data.assert_called_once_with(self.fake_context,
-                                                     fake_share_network)
+                                                     fake_share_network_subnet)
             expected_kwargs = {
                 'binding:vnic_type': 'normal',
                 'host_id': 'foohost1',
-                'network_id': fake_share_network['neutron_net_id'],
-                'subnet_id': fake_share_network['neutron_subnet_id'],
+                'network_id': fake_share_network_subnet['neutron_net_id'],
+                'subnet_id': fake_share_network_subnet['neutron_subnet_id'],
                 'device_owner': 'manila:share',
                 'device_id': fake_share_network['id'],
             }

manila/tests/network/test_standalone_network_plugin.py

@@ -32,6 +32,7 @@ fake_context = context.RequestContext(
     user_id='fake user', project_id='fake project', is_admin=False)
 fake_share_server = dict(id='fake_share_server_id')
 fake_share_network = dict(id='fake_share_network_id')
+fake_share_network_subnet = dict(id='fake_share_network_subnet_id')
 
 
 @ddt.ddt
@@ -305,14 +306,15 @@ class StandaloneNetworkPluginTest(test.TestCase):
         }
         with test_utils.create_temp_config_with_opts(data):
             instance = plugin.StandaloneNetworkPlugin()
-        self.mock_object(instance.db, 'share_network_update')
+        self.mock_object(instance.db, 'share_network_subnet_update')
 
         allocations = instance.allocate_network(
-            fake_context, fake_share_server, fake_share_network, count=0)
+            fake_context, fake_share_server, fake_share_network,
+            fake_share_network_subnet, count=0)
 
         self.assertEqual([], allocations)
-        instance.db.share_network_update.assert_called_once_with(
-            fake_context, fake_share_network['id'],
+        instance.db.share_network_subnet_update.assert_called_once_with(
+            fake_context, fake_share_network_subnet['id'],
             dict(network_type=None, segmentation_id=None,
                  cidr=six.text_type(instance.net.cidr),
                  gateway=six.text_type(instance.gateway),
@@ -329,14 +331,15 @@ class StandaloneNetworkPluginTest(test.TestCase):
         }
         with test_utils.create_temp_config_with_opts(data):
             instance = plugin.StandaloneNetworkPlugin()
-        self.mock_object(instance.db, 'share_network_update')
+        self.mock_object(instance.db, 'share_network_subnet_update')
 
         allocations = instance.allocate_network(
-            fake_context, fake_share_server, fake_share_network, count=0)
+            fake_context, fake_share_server, fake_share_network,
+            fake_share_network_subnet, count=0)
 
         self.assertEqual([], allocations)
-        instance.db.share_network_update.assert_called_once_with(
-            fake_context, fake_share_network['id'],
+        instance.db.share_network_subnet_update.assert_called_once_with(
+            fake_context, fake_share_network_subnet['id'],
             dict(network_type=None, segmentation_id=None,
                  cidr=six.text_type(instance.net.cidr),
                  gateway=six.text_type(instance.gateway),
@@ -354,14 +357,15 @@ class StandaloneNetworkPluginTest(test.TestCase):
         }
         with test_utils.create_temp_config_with_opts(data):
             instance = plugin.StandaloneNetworkPlugin()
-        self.mock_object(instance.db, 'share_network_update')
+        self.mock_object(instance.db, 'share_network_subnet_update')
         self.mock_object(instance.db, 'network_allocation_create')
         self.mock_object(
             instance.db, 'network_allocations_get_by_ip_address',
             mock.Mock(return_value=[]))
 
         allocations = instance.allocate_network(
-            fake_context, fake_share_server, fake_share_network)
+            fake_context, fake_share_server, fake_share_network,
+            fake_share_network_subnet)
 
         self.assertEqual(1, len(allocations))
         na_data = {
@@ -372,8 +376,8 @@ class StandaloneNetworkPluginTest(test.TestCase):
             'ip_version': 4,
             'mtu': 1500,
         }
-        instance.db.share_network_update.assert_called_once_with(
-            fake_context, fake_share_network['id'], na_data)
+        instance.db.share_network_subnet_update.assert_called_once_with(
+            fake_context, fake_share_network_subnet['id'], na_data)
         instance.db.network_allocations_get_by_ip_address.assert_has_calls(
             [mock.call(fake_context, '10.0.0.2')])
         instance.db.network_allocation_create.assert_called_once_with(
@@ -400,14 +404,15 @@ class StandaloneNetworkPluginTest(test.TestCase):
         }
         with test_utils.create_temp_config_with_opts(data):
             instance = plugin.StandaloneNetworkPlugin()
-        self.mock_object(instance.db, 'share_network_update')
+        self.mock_object(instance.db, 'share_network_subnet_update')
         self.mock_object(instance.db, 'network_allocation_create')
         self.mock_object(
             instance.db, 'network_allocations_get_by_ip_address',
             mock.Mock(side_effect=fake_get_allocations_by_ip_address))
 
         allocations = instance.allocate_network(
-            ctxt, fake_share_server, fake_share_network, count=2)
+            ctxt, fake_share_server, fake_share_network,
+            fake_share_network_subnet, count=2)
 
         self.assertEqual(2, len(allocations))
         na_data = {
@@ -418,8 +423,8 @@ class StandaloneNetworkPluginTest(test.TestCase):
             'ip_version': 4,
             'mtu': 1500,
         }
-        instance.db.share_network_update.assert_called_once_with(
-            ctxt, fake_share_network['id'], dict(**na_data))
+        instance.db.share_network_subnet_update.assert_called_once_with(
+            ctxt, fake_share_network_subnet['id'], dict(**na_data))
         instance.db.network_allocations_get_by_ip_address.assert_has_calls(
             [mock.call(ctxt, '10.0.0.2'), mock.call(ctxt, '10.0.0.3'),
              mock.call(ctxt, '10.0.0.4'), mock.call(ctxt, '10.0.0.5')])
@@ -445,7 +450,7 @@ class StandaloneNetworkPluginTest(test.TestCase):
         }
         with test_utils.create_temp_config_with_opts(data):
             instance = plugin.StandaloneNetworkPlugin()
-        self.mock_object(instance.db, 'share_network_update')
+        self.mock_object(instance.db, 'share_network_subnet_update')
         self.mock_object(instance.db, 'network_allocation_create')
         self.mock_object(
             instance.db, 'network_allocations_get_by_ip_address',
@@ -454,10 +459,11 @@ class StandaloneNetworkPluginTest(test.TestCase):
         self.assertRaises(
             exception.NetworkBadConfigurationException,
             instance.allocate_network,
-            fake_context, fake_share_server, fake_share_network)
+            fake_context, fake_share_server, fake_share_network,
+            fake_share_network_subnet)
 
-        instance.db.share_network_update.assert_called_once_with(
-            fake_context, fake_share_network['id'],
+        instance.db.share_network_subnet_update.assert_called_once_with(
+            fake_context, fake_share_network_subnet['id'],
             dict(network_type=None, segmentation_id=None,
                  cidr=six.text_type(instance.net.cidr),
                  gateway=six.text_type(instance.gateway),
@@ -484,12 +490,13 @@ class StandaloneNetworkPluginTest(test.TestCase):
 
         instance = self._setup_manage_network_allocations(label=label)
         if not label:
-            self.mock_object(instance, '_verify_share_network')
-            self.mock_object(instance.db, 'share_network_update')
+            self.mock_object(instance, '_verify_share_network_subnet')
+            self.mock_object(instance.db, 'share_network_subnet_update')
         self.mock_object(instance.db, 'network_allocation_create')
 
         result = instance.manage_network_allocations(
-            fake_context, allocations, fake_share_server, fake_share_network)
+            fake_context, allocations, fake_share_server,
+            fake_share_network, fake_share_network_subnet)
 
         self.assertEqual(['fd12::2000'], result)
 
@@ -513,10 +520,10 @@ class StandaloneNetworkPluginTest(test.TestCase):
         data_list[1].update(network_data)
 
         if not label:
-            instance.db.share_network_update.assert_called_once_with(
-                fake_context, fake_share_network['id'], network_data)
-            instance._verify_share_network.assert_called_once_with(
-                fake_share_server['id'], fake_share_network)
+            instance.db.share_network_subnet_update.assert_called_once_with(
+                fake_context, fake_share_network_subnet['id'], network_data)
+            instance._verify_share_network_subnet.assert_called_once_with(
+                fake_share_server['id'], fake_share_network_subnet)
 
         instance.db.network_allocation_create.assert_has_calls([
             mock.call(fake_context, data_list[0]),

manila/tests/share/test_api.py

@@ -683,6 +683,128 @@ class ShareAPITestCase(test.TestCase):
         self.assertSubDictMatch(share_data,
                                 db_api.share_create.call_args[0][1])
 
+    @ddt.data(
+        {'get_all_azs_return': [], 'subnet_by_az_side_effect': []},
+        {'get_all_azs_return': [{'name': 'az1', 'id': 'az_id_1'}],
+         'subnet_by_az_side_effect': [None]},
+        {'get_all_azs_return': [{'name': 'az1', 'id': 'az_id_1'}],
+         'subnet_by_az_side_effect': ['fake_sns_1']},
+        {'get_all_azs_return': [{'name': 'az1', 'id': 'az_id_1'},
+                                {'name': 'az2', 'id': 'az_id_2'}],
+         'subnet_by_az_side_effect': [None, 'fake_sns_2']}
+    )
+    @ddt.unpack
+    def test__get_all_availability_zones_with_subnets(
+            self, get_all_azs_return, subnet_by_az_side_effect):
+        fake_share_network_id = 'fake_sn_id'
+        self.mock_object(db_api, 'availability_zone_get_all',
+                         mock.Mock(return_value=get_all_azs_return))
+        self.mock_object(db_api,
+                         'share_network_subnet_get_by_availability_zone_id',
+                         mock.Mock(side_effect=subnet_by_az_side_effect))
+        expected_az_names = []
+        expected_get_az_calls = []
+        for index, value in enumerate(get_all_azs_return):
+            expected_get_az_calls.append(mock.call(
+                self.context, share_network_id=fake_share_network_id,
+                availability_zone_id=value['id']))
+            if subnet_by_az_side_effect[index] is not None:
+                expected_az_names.append(value['name'])
+
+        get_all_subnets = self.api._get_all_availability_zones_with_subnets
+        compatible_azs = get_all_subnets(self.context, fake_share_network_id)
+
+        db_api.availability_zone_get_all.assert_called_once_with(
+            self.context)
+        db_get_azs_with_subnet = (
+            db_api.share_network_subnet_get_by_availability_zone_id)
+        db_get_azs_with_subnet.assert_has_calls(expected_get_az_calls)
+
+        self.assertEqual(expected_az_names, compatible_azs)
+
+    @ddt.data(
+        {'availability_zones': None, 'azs_with_subnet': ['fake_az_1']},
+        {'availability_zones': ['fake_az_2'],
+         'azs_with_subnet': ['fake_az_2']},
+        {'availability_zones': ['fake_az_1', 'faze_az_2', 'fake_az_3'],
+         'azs_with_subnet': ['fake_az_3']}
+    )
+    @ddt.unpack
+    def test_create_share_with_subnets(self, availability_zones,
+                                       azs_with_subnet):
+        share, share_data = self._setup_create_mocks()
+        reservation = 'fake'
+        self.mock_object(quota.QUOTAS, 'reserve',
+                         mock.Mock(return_value=reservation))
+        self.mock_object(self.api, '_get_all_availability_zones_with_subnets',
+                         mock.Mock(return_value=azs_with_subnet))
+        self.mock_object(quota.QUOTAS, 'commit')
+        self.mock_object(self.api, 'create_instance')
+        self.mock_object(db_api, 'share_get')
+        fake_share_network_id = 'fake_sn_id'
+
+        if availability_zones:
+            expected_azs = (
+                [az for az in availability_zones if az in azs_with_subnet])
+        else:
+            expected_azs = azs_with_subnet
+
+        self.api.create(
+            self.context,
+            share_data['share_proto'],
+            share_data['size'],
+            share_data['display_name'],
+            share_data['display_description'],
+            share_network_id=fake_share_network_id,
+            availability_zones=availability_zones)
+        share['status'] = constants.STATUS_CREATING
+        share['host'] = None
+
+        quota.QUOTAS.reserve.assert_called_once()
+        get_all_azs_sns = self.api._get_all_availability_zones_with_subnets
+        get_all_azs_sns.assert_called_once_with(
+            self.context, fake_share_network_id)
+        quota.QUOTAS.commit.assert_called_once()
+        self.api.create_instance.assert_called_once_with(
+            self.context, share, share_network_id=fake_share_network_id,
+            host=None, availability_zone=None, share_group=None,
+            share_group_snapshot_member=None, share_type_id=None,
+            availability_zones=expected_azs
+        )
+        db_api.share_get.assert_called_once()
+
+    @ddt.data(
+        {'availability_zones': None, 'azs_with_subnet': []},
+        {'availability_zones': ['fake_az_1'],
+         'azs_with_subnet': ['fake_az_2']}
+    )
+    @ddt.unpack
+    def test_create_share_with_subnets_invalid_azs(self, availability_zones,
+                                                   azs_with_subnet):
+        share, share_data = self._setup_create_mocks()
+        reservation = 'fake'
+        self.mock_object(quota.QUOTAS, 'reserve',
+                         mock.Mock(return_value=reservation))
+        self.mock_object(self.api, '_get_all_availability_zones_with_subnets',
+                         mock.Mock(return_value=azs_with_subnet))
+        self.mock_object(quota.QUOTAS, 'commit')
+        self.mock_object(self.api, 'create_instance')
+        self.mock_object(db_api, 'share_get')
+        fake_share_network_id = 'fake_sn_id'
+
+        self.assertRaises(
+            exception.InvalidInput,
+            self.api.create,
+            self.context, share_data['share_proto'], share_data['size'],
+            share_data['display_name'], share_data['display_description'],
+            share_network_id=fake_share_network_id,
+            availability_zones=availability_zones)
+
+        quota.QUOTAS.reserve.assert_called_once()
+        get_all_azs_sns = self.api._get_all_availability_zones_with_subnets
+        get_all_azs_sns.assert_called_once_with(
+            self.context, fake_share_network_id)
+
     @ddt.data(
         None, '', 'fake', 'nfsfake', 'cifsfake', 'glusterfsfake', 'hdfsfake')
     def test_create_share_invalid_protocol(self, proto):
@@ -868,17 +990,31 @@ class ShareAPITestCase(test.TestCase):
                           self.api.get_share_attributes_from_share_type,
                           share_type)
 
-    @ddt.data('dr', 'readable', None)
-    def test_manage_new(self, replication_type):
+    @ddt.data(
+        {'replication_type': 'dr', 'dhss': False, 'share_server_id': None},
+        {'replication_type': 'readable', 'dhss': False,
+         'share_server_id': None},
+        {'replication_type': None, 'dhss': False, 'share_server_id': None},
+        {'replication_type': None, 'dhss': True, 'share_server_id': 'fake'}
+    )
+    @ddt.unpack
+    def test_manage_new(self, replication_type, dhss, share_server_id):
         share_data = {
             'host': 'fake',
             'export_location': 'fake',
             'share_proto': 'fake',
             'share_type_id': 'fake',
         }
+        if dhss:
+            share_data['share_server_id'] = share_server_id
         driver_options = {}
         date = datetime.datetime(1, 1, 1, 1, 1, 1)
         timeutils.utcnow.return_value = date
+        fake_subnet = db_utils.create_share_network_subnet(
+            share_network_id='fake')
+        share_server = db_utils.create_share_server(
+            status=constants.STATUS_ACTIVE, id=share_server_id,
+            share_network_subnet_id=fake_subnet['id'])
         fake_share_data = {
             'id': 'fakeid',
             'status': constants.STATUS_CREATING,
@@ -891,7 +1027,7 @@ class ShareAPITestCase(test.TestCase):
                 'create_share_from_snapshot_support': False,
                 'revert_to_snapshot_support': False,
                 'mount_snapshot_support': False,
-                'driver_handles_share_servers': False,
+                'driver_handles_share_servers': dhss,
             },
         }
 
@@ -905,6 +1041,10 @@ class ShareAPITestCase(test.TestCase):
                          mock.Mock(return_value=share))
         self.mock_object(share_types, 'get_share_type',
                          mock.Mock(return_value=fake_type))
+        self.mock_object(db_api, 'share_server_get',
+                         mock.Mock(return_value=share_server))
+        self.mock_object(db_api, 'share_network_subnet_get',
+                         mock.Mock(return_value=fake_subnet))
         self.mock_object(self.api, 'get_all', mock.Mock(return_value=[]))
 
         self.api.manage(self.context, copy.deepcopy(share_data),
@@ -929,6 +1069,9 @@ class ShareAPITestCase(test.TestCase):
             share, fake_type, size=0, share_proto=share_data['share_proto'],
             host=share_data['host'])
 
+        if dhss:
+            share_data.update({
+                'share_network_id': fake_subnet['share_network_id']})
         export_location = share_data.pop('export_location')
         self.api.get_all.assert_called_once_with(self.context, mock.ANY)
         db_api.share_create.assert_called_once_with(self.context, share_data)
@@ -938,6 +1081,11 @@ class ShareAPITestCase(test.TestCase):
         )
         self.scheduler_rpcapi.manage_share.assert_called_once_with(
             self.context, share['id'], driver_options, expected_request_spec)
+        if dhss:
+            db_api.share_server_get.assert_called_once_with(
+                self.context, share_data['share_server_id'])
+            db_api.share_network_subnet_get.assert_called_once_with(
+                self.context, share_server['share_network_subnet_id'])
 
     @ddt.data((True, exception.InvalidInput, True),
               (True, exception.InvalidInput, False),
@@ -1387,10 +1535,14 @@ class ShareAPITestCase(test.TestCase):
         fake_share_network = {
             'id': 'fake_net_id'
         }
+        fake_share_net_subnet = {
+            'id': 'fake_subnet_id',
+            'share_network_id': fake_share_network['id']
+        }
         identifier = 'fake_identifier'
         values = {
             'host': host,
-            'share_network_id': fake_share_network['id'],
+            'share_network_subnet_id': fake_share_net_subnet['id'],
             'status': constants.STATUS_MANAGING,
             'is_auto_deletable': False,
             'identifier': identifier,
@@ -1400,7 +1552,7 @@ class ShareAPITestCase(test.TestCase):
             'id': 'fake_server_id',
             'status': constants.STATUS_MANAGING,
             'host': host,
-            'share_network_id': fake_share_network['id'],
+            'share_network_subnet_id': fake_share_net_subnet['id'],
             'is_auto_deletable': False,
             'identifier': identifier,
         }
@@ -1419,7 +1571,7 @@ class ShareAPITestCase(test.TestCase):
             mock.Mock(return_value=server_managing)
         )
         result = self.api.manage_share_server(
-            self.context, 'fake_identifier', host, fake_share_network,
+            self.context, 'fake_identifier', host, fake_share_net_subnet,
             {'opt1': 'val1', 'opt2': 'val2'}
         )
 
@@ -1434,7 +1586,7 @@ class ShareAPITestCase(test.TestCase):
 
         result_dict = {
             'host': result['host'],
-            'share_network_id': result['share_network_id'],
+            'share_network_subnet_id': result['share_network_subnet_id'],
             'status': result['status'],
             'is_auto_deletable': result['is_auto_deletable'],
             'identifier': result['identifier'],
@@ -3273,26 +3425,211 @@ class ShareAPITestCase(test.TestCase):
         self.assertFalse(mock_db_update_call.called)
         self.assertFalse(mock_scheduler_rpcapi_call.called)
 
+    def test_create_share_replica_subnet_not_found(self):
+        request_spec = fakes.fake_replica_request_spec()
+        replica = request_spec['share_instance_properties']
+        extra_specs = {
+            'availability_zones': 'FAKE_AZ,FAKE_AZ2',
+            'replication_type': constants.REPLICATION_TYPE_DR
+        }
+        share_type = db_utils.create_share_type(extra_specs=extra_specs)
+        share_type = db_api.share_type_get(self.context, share_type['id'])
+        az_name = 'FAKE_AZ'
+        share = db_utils.create_share(
+            id=replica['share_id'], replication_type='dr')
+        self.mock_object(db_api, 'share_replicas_get_available_active_replica',
+                         mock.Mock(return_value=mock.Mock(
+                             return_value={'host': 'fake_ar_host'})))
+        self.mock_object(share_types, 'get_share_type',
+                         mock.Mock(return_value=share_type))
+        self.mock_object(db_api, 'availability_zone_get')
+        self.mock_object(db_api,
+                         'share_network_subnet_get_by_availability_zone_id',
+                         mock.Mock(return_value=None))
+
+        self.assertRaises(exception.InvalidShare,
+                          self.api.create_share_replica,
+                          self.context,
+                          share,
+                          availability_zone=az_name,
+                          share_network_id='fake_id')
+        (db_api.share_replicas_get_available_active_replica
+            .assert_called_once_with(self.context, share['id']))
+        self.assertTrue(share_types.get_share_type.called)
+        db_api.availability_zone_get.assert_called_once_with(
+            self.context, az_name)
+        self.assertTrue(
+            db_api.share_network_subnet_get_by_availability_zone_id.called)
+
+    def test_create_share_replica_az_not_found(self):
+        request_spec = fakes.fake_replica_request_spec()
+        replica = request_spec['share_instance_properties']
+        extra_specs = {
+            'availability_zones': 'FAKE_AZ,FAKE_AZ2',
+            'replication_type': constants.REPLICATION_TYPE_DR
+        }
+        share_type = db_utils.create_share_type(extra_specs=extra_specs)
+        share_type = db_api.share_type_get(self.context, share_type['id'])
+        az_name = 'FAKE_AZ'
+        share = db_utils.create_share(
+            id=replica['share_id'], replication_type='dr')
+        self.mock_object(db_api, 'share_replicas_get_available_active_replica',
+                         mock.Mock(return_value=mock.Mock(
+                             return_value={'host': 'fake_ar_host'})))
+        self.mock_object(share_types, 'get_share_type',
+                         mock.Mock(return_value=share_type))
+        side_effect = exception.AvailabilityZoneNotFound(id=az_name)
+        self.mock_object(db_api, 'availability_zone_get',
+                         mock.Mock(side_effect=side_effect))
+
+        self.assertRaises(exception.InvalidInput,
+                          self.api.create_share_replica,
+                          self.context,
+                          share,
+                          availability_zone=az_name,
+                          share_network_id='fake_id')
+        (db_api.share_replicas_get_available_active_replica
+            .assert_called_once_with(self.context, share['id']))
+        self.assertTrue(share_types.get_share_type.called)
+        db_api.availability_zone_get.assert_called_once_with(
+            self.context, az_name)
+
+    @ddt.data(
+        {'availability_zones': '', 'azs_with_subnet': ['fake_az_1']},
+        {'availability_zones': 'fake_az_1,fake_az_2',
+         'azs_with_subnet': ['fake_az_2']}
+    )
+    @ddt.unpack
+    def test_create_share_replica_azs_with_subnets(self, availability_zones,
+                                                   azs_with_subnet):
+        request_spec = fakes.fake_replica_request_spec()
+        replica = request_spec['share_instance_properties']
+        share_network_id = 'fake_share_network_id'
+        extra_specs = {
+            'availability_zones': availability_zones,
+            'replication_type': constants.REPLICATION_TYPE_DR
+        }
+        share_type = db_utils.create_share_type(extra_specs=extra_specs)
+        share_type = db_api.share_type_get(self.context, share_type['id'])
+        share = db_utils.create_share(
+            id=replica['share_id'], replication_type='dr',
+            share_type_id=share_type['id'])
+        cast_rules_to_readonly = (
+            share['replication_type'] == constants.REPLICATION_TYPE_READABLE)
+        fake_replica = fakes.fake_replica(id=replica['id'])
+        fake_request_spec = fakes.fake_replica_request_spec()
+
+        self.mock_object(db_api, 'share_replicas_get_available_active_replica',
+                         mock.Mock(return_value={'host': 'fake_ar_host'}))
+        self.mock_object(share_types, 'get_share_type',
+                         mock.Mock(return_value=share_type))
+        mock_get_all_az_subnet = self.mock_object(
+            self.api, '_get_all_availability_zones_with_subnets',
+            mock.Mock(return_value=azs_with_subnet))
+
+        if availability_zones == '':
+            expected_azs = azs_with_subnet
+        else:
+            availability_zones = [
+                t for t in availability_zones.split(',') if availability_zones]
+            expected_azs = (
+                [az for az in availability_zones if az in azs_with_subnet])
+
+        self.mock_object(
+            self.api, 'create_share_instance_and_get_request_spec',
+            mock.Mock(return_value=(fake_request_spec, fake_replica)))
+        self.mock_object(db_api, 'share_replica_update')
+        mock_snapshot_get_all_call = self.mock_object(
+            db_api, 'share_snapshot_get_all_for_share',
+            mock.Mock(return_value=[]))
+        mock_sched_rpcapi_call = self.mock_object(
+            self.api.scheduler_rpcapi, 'create_share_replica')
+
+        self.api.create_share_replica(
+            self.context, share, share_network_id=share_network_id)
+
+        (db_api.share_replicas_get_available_active_replica
+            .assert_called_once_with(self.context, share['id']))
+        self.assertTrue(share_types.get_share_type.called)
+        mock_get_all_az_subnet.assert_called_once_with(
+            self.context, share_network_id
+        )
+        (self.api.create_share_instance_and_get_request_spec.
+         assert_called_once_with(
+             self.context, share, availability_zone=None,
+             share_network_id=share_network_id, share_type_id=share_type['id'],
+             availability_zones=expected_azs,
+             cast_rules_to_readonly=cast_rules_to_readonly))
+        db_api.share_replica_update.assert_called_once()
+        mock_snapshot_get_all_call.assert_called_once()
+        mock_sched_rpcapi_call.assert_called_once()
+
+    @ddt.data(
+        {'availability_zones': '', 'azs_with_subnet': []},
+        {'availability_zones': 'fake_az_1,fake_az_2',
+         'azs_with_subnet': ['fake_az_3']}
+    )
+    @ddt.unpack
+    def test_create_share_replica_azs_with_subnets_invalid_input(
+            self, availability_zones, azs_with_subnet):
+        request_spec = fakes.fake_replica_request_spec()
+        replica = request_spec['share_instance_properties']
+        share_network_id = 'fake_share_network_id'
+        extra_specs = {
+            'availability_zones': availability_zones,
+            'replication_type': constants.REPLICATION_TYPE_DR
+        }
+        share_type = db_utils.create_share_type(extra_specs=extra_specs)
+        share_type = db_api.share_type_get(self.context, share_type['id'])
+        share = db_utils.create_share(
+            id=replica['share_id'], replication_type='dr',
+            share_type_id=share_type['id'])
+
+        self.mock_object(db_api, 'share_replicas_get_available_active_replica',
+                         mock.Mock(return_value={'host': 'fake_ar_host'}))
+        self.mock_object(share_types, 'get_share_type',
+                         mock.Mock(return_value=share_type))
+        mock_get_all_az_subnet = self.mock_object(
+            self.api, '_get_all_availability_zones_with_subnets',
+            mock.Mock(return_value=azs_with_subnet))
+
+        self.assertRaises(
+            exception.InvalidInput,
+            self.api.create_share_replica,
+            self.context, share, share_network_id=share_network_id)
+
+        (db_api.share_replicas_get_available_active_replica
+         .assert_called_once_with(self.context, share['id']))
+        self.assertTrue(share_types.get_share_type.called)
+        mock_get_all_az_subnet.assert_called_once_with(
+            self.context, share_network_id
+        )
+
     @ddt.data({'has_snapshots': True,
                'extra_specs': {
                    'replication_type': constants.REPLICATION_TYPE_DR,
-               }},
+               },
+               'share_network_id': None},
               {'has_snapshots': False,
                'extra_specs': {
                    'availability_zones': 'FAKE_AZ,FAKE_AZ2',
                    'replication_type': constants.REPLICATION_TYPE_DR,
-               }},
+               },
+               'share_network_id': None},
               {'has_snapshots': True,
                'extra_specs': {
                    'availability_zones': 'FAKE_AZ,FAKE_AZ2',
                    'replication_type': constants.REPLICATION_TYPE_READABLE,
-               }},
+               },
+               'share_network_id': None},
               {'has_snapshots': False,
                'extra_specs': {
                    'replication_type': constants.REPLICATION_TYPE_READABLE,
-               }})
+               },
+               'share_network_id': 'fake_sn_id'})
     @ddt.unpack
-    def test_create_share_replica(self, has_snapshots, extra_specs):
+    def test_create_share_replica(self, has_snapshots, extra_specs,
+                                  share_network_id):
         request_spec = fakes.fake_replica_request_spec()
         replication_type = extra_specs['replication_type']
         replica = request_spec['share_instance_properties']
@@ -3314,6 +3651,9 @@ class ShareAPITestCase(test.TestCase):
                          mock.Mock(return_value={'host': 'fake_ar_host'}))
         self.mock_object(share_types, 'get_share_type',
                          mock.Mock(return_value=share_type))
+        self.mock_object(db_api, 'availability_zone_get')
+        self.mock_object(db_api,
+                         'share_network_subnet_get_by_availability_zone_id')
         self.mock_object(
             share_api.API, 'create_share_instance_and_get_request_spec',
             mock.Mock(return_value=(fake_request_spec, fake_replica)))
@@ -3328,7 +3668,8 @@ class ShareAPITestCase(test.TestCase):
         expected_snap_instance_create_call_count = 2 if has_snapshots else 0
 
         result = self.api.create_share_replica(
-            self.context, share, availability_zone='FAKE_AZ')
+            self.context, share, availability_zone='FAKE_AZ',
+            share_network_id=share_network_id)
 
         self.assertTrue(mock_sched_rpcapi_call.called)
         self.assertEqual(replica, result)
@@ -3343,7 +3684,7 @@ class ShareAPITestCase(test.TestCase):
         (share_api.API.create_share_instance_and_get_request_spec.
          assert_called_once_with(
              self.context, share, availability_zone='FAKE_AZ',
-             share_network_id=None, share_type_id=share_type['id'],
+             share_network_id=share_network_id, share_type_id=share_type['id'],
              availability_zones=expected_azs,
              cast_rules_to_readonly=cast_rules_to_readonly))
 

manila/tests/share/test_manager.py

@@ -713,8 +713,10 @@ class ShareManagerTestCase(test.TestCase):
     def test_create_share_instance_from_snapshot_with_server(self):
         """Test share can be created from snapshot if server exists."""
         network = db_utils.create_share_network()
+        subnet = db_utils.create_share_network_subnet(
+            share_network_id=network['id'])
         server = db_utils.create_share_server(
-            share_network_id=network['id'], host='fake_host',
+            share_network_subnet_id=subnet['id'], host='fake_host',
             backend_details=dict(fake='fake'))
         parent_share = db_utils.create_share(share_network_id='net-id',
                                              share_server_id=server['id'])
@@ -843,6 +845,9 @@ class ShareManagerTestCase(test.TestCase):
 
     def test_create_share_replica_with_share_server_exception(self):
         replica = fake_replica()
+        share_network_subnet = db_utils.create_share_network_subnet(
+            share_network_id=replica['share_network_id'],
+            availability_zone_id=replica['availability_zone_id'])
         manager.CONF.set_default('driver_handles_share_servers', True)
         self.mock_object(db, 'share_instance_access_copy',
                          mock.Mock(return_value=[]))
@@ -850,6 +855,9 @@ class ShareManagerTestCase(test.TestCase):
                          mock.Mock(return_value=fake_replica(id='fake2')))
         self.mock_object(db, 'share_replica_get',
                          mock.Mock(return_value=replica))
+        self.mock_object(db,
+                         'share_network_subnet_get_by_availability_zone_id',
+                         mock.Mock(return_value=share_network_subnet))
         mock_replica_update_call = self.mock_object(db, 'share_replica_update')
         mock_driver_replica_call = self.mock_object(
             self.share_manager.driver, 'create_replica')
@@ -871,7 +879,7 @@ class ShareManagerTestCase(test.TestCase):
 
     def test_create_share_replica_driver_error_on_creation(self):
         fake_access_rules = [{'id': '1'}, {'id': '2'}, {'id': '3'}]
-        replica = fake_replica(share_network_id='')
+        replica = fake_replica()
         replica_2 = fake_replica(id='fake2')
         self.mock_object(db, 'share_replica_get',
                          mock.Mock(return_value=replica))
@@ -2038,13 +2046,16 @@ class ShareManagerTestCase(test.TestCase):
         """Test share can be created without share server."""
 
         share_net = db_utils.create_share_network()
+        share_net_subnet = db_utils.create_share_network_subnet(
+            share_network_id=share_net['id'],
+            availability_zone_id=None,
+        )
         share = db_utils.create_share(share_network_id=share_net['id'])
-
         share_id = share['id']
 
         def fake_setup_server(context, share_network, *args, **kwargs):
             return db_utils.create_share_server(
-                share_network_id=share_network['id'],
+                share_network_subnet_id=share_net_subnet['id'],
                 host='fake_host')
 
         self.mock_object(manager.LOG, 'info')
@@ -2058,18 +2069,23 @@ class ShareManagerTestCase(test.TestCase):
         manager.LOG.info.assert_called_with(mock.ANY, share.instance['id'])
 
     def test_create_share_instance_with_share_network_server_fail(self):
-        fake_share = db_utils.create_share(share_network_id='fake_sn_id',
-                                           size=1)
-        fake_server = {
-            'id': 'fake_srv_id',
-            'status': constants.STATUS_CREATING,
-        }
+        share_network = db_utils.create_share_network(id='fake_sn_id')
+        share_net_subnet = db_utils.create_share_network_subnet(
+            id='fake_sns_id', share_network_id=share_network['id']
+        )
+        fake_share = db_utils.create_share(
+            share_network_id=share_network['id'], size=1)
+        fake_server = db_utils.create_share_server(
+            id='fake_srv_id', status=constants.STATUS_CREATING)
         self.mock_object(db, 'share_server_create',
                          mock.Mock(return_value=fake_server))
         self.mock_object(db, 'share_instance_update',
                          mock.Mock(return_value=fake_share.instance))
         self.mock_object(db, 'share_instance_get',
                          mock.Mock(return_value=fake_share.instance))
+        self.mock_object(db,
+                         'share_network_subnet_get_by_availability_zone_id',
+                         mock.Mock(return_value=share_net_subnet))
         self.mock_object(manager.LOG, 'error')
 
         def raise_share_server_not_found(*args, **kwargs):
@@ -2119,7 +2135,7 @@ class ShareManagerTestCase(test.TestCase):
             resource_id=fake_share['id'],
             detail=message_field.Detail.NO_SHARE_SERVER)
 
-    def test_create_share_instance_with_share_network_not_found(self):
+    def test_create_share_instance_with_share_network_subnet_not_found(self):
         """Test creation fails if share network not found."""
 
         self.mock_object(manager.LOG, 'error')
@@ -2127,7 +2143,7 @@ class ShareManagerTestCase(test.TestCase):
         share = db_utils.create_share(share_network_id='fake-net-id')
         share_id = share['id']
         self.assertRaises(
-            exception.ShareNetworkNotFound,
+            exception.ShareNetworkSubnetNotFound,
             self.share_manager.create_share_instance,
             self.context,
             share.instance['id']
@@ -2146,9 +2162,14 @@ class ShareManagerTestCase(test.TestCase):
     def test_create_share_instance_with_share_network_server_exists(self):
         """Test share can be created with existing share server."""
         share_net = db_utils.create_share_network()
+        share_net_subnet = db_utils.create_share_network_subnet(
+            share_network_id=share_net['id'],
+            availability_zone_id=None,
+        )
         share = db_utils.create_share(share_network_id=share_net['id'])
         share_srv = db_utils.create_share_server(
-            share_network_id=share_net['id'], host=self.share_manager.host)
+            share_network_subnet_id=share_net_subnet['id'],
+            host=self.share_manager.host)
 
         share_id = share['id']
 
@@ -2201,9 +2222,14 @@ class ShareManagerTestCase(test.TestCase):
     def test_create_share_instance_with_server_created(self):
         """Test share can be created and share server is created."""
         share_net = db_utils.create_share_network()
-        share = db_utils.create_share(share_network_id=share_net['id'])
+        share_net_subnet = db_utils.create_share_network_subnet(
+            share_network_id=share_net['id'],
+            availability_zone_id=None)
+        share = db_utils.create_share(share_network_id=share_net['id'],
+                                      availability_zone=None)
         db_utils.create_share_server(
-            share_network_id=share_net['id'], host=self.share_manager.host,
+            share_network_subnet_id=share_net_subnet['id'],
+            host=self.share_manager.host,
             status=constants.STATUS_ERROR)
         share_id = share['id']
         fake_server = {
@@ -2231,11 +2257,16 @@ class ShareManagerTestCase(test.TestCase):
 
     def test_create_share_instance_update_replica_state(self):
         share_net = db_utils.create_share_network()
+        share_net_subnet = db_utils.create_share_network_subnet(
+            share_network_id=share_net['id'],
+            availability_zone_id=None
+        )
         share = db_utils.create_share(share_network_id=share_net['id'],
-                                      replication_type='dr')
+                                      replication_type='dr',
+                                      availability_zone=None)
         db_utils.create_share_server(
-            share_network_id=share_net['id'], host=self.share_manager.host,
-            status=constants.STATUS_ERROR)
+            share_network_subnet_id=share_net_subnet['id'],
+            host=self.share_manager.host, status=constants.STATUS_ERROR)
         share_id = share['id']
         fake_server = {
             'id': 'fake_srv_id',
@@ -2344,9 +2375,16 @@ class ShareManagerTestCase(test.TestCase):
 
     def test_provide_share_server_for_share_incompatible_servers(self):
         fake_exception = exception.ManilaException("fake")
-        fake_share_server = {'id': 'fake'}
+        fake_share_network = db_utils.create_share_network(id='fake_sn_id')
+        fake_share_net_subnet = db_utils.create_share_network_subnet(
+            id='fake_sns_id', share_network_id=fake_share_network['id']
+        )
+        fake_share_server = db_utils.create_share_server(id='fake')
         share = db_utils.create_share()
 
+        db_method_mock = self.mock_object(
+            db, 'share_network_subnet_get_by_availability_zone_id',
+            mock.Mock(return_value=fake_share_net_subnet))
         self.mock_object(db,
                          'share_server_get_all_by_host_and_share_net_valid',
                          mock.Mock(return_value=[fake_share_server]))
@@ -2358,7 +2396,13 @@ class ShareManagerTestCase(test.TestCase):
 
         self.assertRaises(exception.ManilaException,
                           self.share_manager._provide_share_server_for_share,
-                          self.context, "fake_id", share.instance)
+                          self.context, fake_share_network['id'],
+                          share.instance)
+
+        db_method_mock.assert_called_once_with(
+            self.context, fake_share_network['id'],
+            availability_zone_id=share.instance.get('availability_zone_id')
+        )
         driver_mock = self.share_manager.driver
         driver_method_mock = (
             driver_mock.choose_share_server_compatible_with_share
@@ -2374,6 +2418,7 @@ class ShareManagerTestCase(test.TestCase):
 
     def test_provide_share_server_for_share_parent_ss_not_found(self):
         fake_parent_id = "fake_server_id"
+        fake_share_network = db_utils.create_share_network(id='fake_sn_id')
         fake_exception = exception.ShareServerNotFound("fake")
         share = db_utils.create_share()
         fake_snapshot = {
@@ -2388,14 +2433,15 @@ class ShareManagerTestCase(test.TestCase):
 
         self.assertRaises(exception.ShareServerNotFound,
                           self.share_manager._provide_share_server_for_share,
-                          self.context, "fake_id", share.instance,
-                          snapshot=fake_snapshot)
+                          self.context, fake_share_network['id'],
+                          share.instance, snapshot=fake_snapshot)
 
         db.share_server_get.assert_called_once_with(
             self.context, fake_parent_id)
 
     def test_provide_share_server_for_share_parent_ss_invalid(self):
         fake_parent_id = "fake_server_id"
+        fake_share_network = db_utils.create_share_network(id='fake_sn_id')
         share = db_utils.create_share()
         fake_snapshot = {
             'share': {
@@ -2410,8 +2456,8 @@ class ShareManagerTestCase(test.TestCase):
 
         self.assertRaises(exception.InvalidShareServer,
                           self.share_manager._provide_share_server_for_share,
-                          self.context, "fake_id", share.instance,
-                          snapshot=fake_snapshot)
+                          self.context, fake_share_network['id'],
+                          share.instance, snapshot=fake_snapshot)
 
         db.share_server_get.assert_called_once_with(
             self.context, fake_parent_id)
@@ -2433,7 +2479,7 @@ class ShareManagerTestCase(test.TestCase):
         self.assertRaises(
             exception.ManilaException,
             self.share_manager._provide_share_server_for_share_group,
-            self.context, "fake_id", sg)
+            self.context, "fake_sn_id", "fake_sns_id", sg)
 
         driver_mock = self.share_manager.driver
         driver_method_mock = (
@@ -2445,7 +2491,7 @@ class ShareManagerTestCase(test.TestCase):
         self.assertRaises(
             exception.InvalidInput,
             self.share_manager._provide_share_server_for_share_group,
-            self.context, None, None)
+            self.context, None, None, None)
 
     def test_manage_share_driver_exception(self):
         self.mock_object(self.share_manager, 'driver')
@@ -2951,12 +2997,13 @@ class ShareManagerTestCase(test.TestCase):
 
     def test_setup_server(self):
         # Setup required test data
-        share_server = {
-            'id': 'fake_id',
-            'share_network_id': 'fake_sn_id',
-        }
         metadata = {'fake_metadata_key': 'fake_metadata_value'}
-        share_network = {'id': 'fake_sn_id'}
+        share_network = db_utils.create_share_network(id='fake_sn_id')
+        share_net_subnet = db_utils.create_share_network_subnet(
+            id='fake_sns_id', share_network_id=share_network['id']
+        )
+        share_server = db_utils.create_share_server(
+            id='fake_id', share_network_subnet_id=share_net_subnet['id'])
         network_info = {'security_services': []}
         for ss_type in constants.SECURITY_SERVICES_ALLOWED_TYPES:
             network_info['security_services'].append({
@@ -2974,6 +3021,8 @@ class ShareManagerTestCase(test.TestCase):
         network_info['network_type'] = 'fake_network_type'
 
         # mock required stuff
+        self.mock_object(self.share_manager.db, 'share_network_subnet_get',
+                         mock.Mock(return_value=share_net_subnet))
         self.mock_object(self.share_manager.db, 'share_network_get',
                          mock.Mock(return_value=share_network))
         self.mock_object(self.share_manager.driver, 'allocate_network')
@@ -2993,14 +3042,15 @@ class ShareManagerTestCase(test.TestCase):
 
         # verify results
         self.assertEqual(share_server, result)
-        self.share_manager.db.share_network_get.assert_has_calls([
-            mock.call(self.context, share_server['share_network_id']),
-            mock.call(self.context, share_server['share_network_id']),
-        ])
+        self.share_manager.db.share_network_get.assert_called_once_with(
+            self.context, share_net_subnet['share_network_id'])
+        self.share_manager.db.share_network_subnet_get.assert_called_once_with(
+            self.context, share_server['share_network_subnet']['id'])
         self.share_manager.driver.allocate_network.assert_called_once_with(
-            self.context, share_server, share_network)
+            self.context, share_server, share_network,
+            share_server['share_network_subnet'])
         self.share_manager._form_server_setup_info.assert_called_once_with(
-            self.context, share_server, share_network)
+            self.context, share_server, share_network, share_net_subnet)
         self.share_manager._validate_segmentation_id.assert_called_once_with(
             network_info)
         self.share_manager.driver.setup_server.assert_called_once_with(
@@ -3025,12 +3075,14 @@ class ShareManagerTestCase(test.TestCase):
 
     def test_setup_server_server_info_not_present(self):
         # Setup required test data
-        share_server = {
-            'id': 'fake_id',
-            'share_network_id': 'fake_sn_id',
-        }
         metadata = {'fake_metadata_key': 'fake_metadata_value'}
         share_network = {'id': 'fake_sn_id'}
+        share_net_subnet = {'id': 'fake_sns_id',
+                            'share_network_id': share_network['id']}
+        share_server = {
+            'id': 'fake_id',
+            'share_network_subnet': share_net_subnet,
+        }
         network_info = {
             'fake_network_info_key': 'fake_network_info_value',
             'security_services': [],
@@ -3039,6 +3091,8 @@ class ShareManagerTestCase(test.TestCase):
         server_info = {}
 
         # mock required stuff
+        self.mock_object(self.share_manager.db, 'share_network_subnet_get',
+                         mock.Mock(return_value=share_net_subnet))
         self.mock_object(self.share_manager.db, 'share_network_get',
                          mock.Mock(return_value=share_network))
         self.mock_object(self.share_manager, '_form_server_setup_info',
@@ -3055,11 +3109,12 @@ class ShareManagerTestCase(test.TestCase):
 
         # verify results
         self.assertEqual(share_server, result)
-        self.share_manager.db.share_network_get.assert_has_calls([
-            mock.call(self.context, share_server['share_network_id']),
-            mock.call(self.context, share_server['share_network_id'])])
+        self.share_manager.db.share_network_get.assert_called_once_with(
+            self.context, share_net_subnet['share_network_id'])
+        self.share_manager.db.share_network_subnet_get.assert_called_once_with(
+            self.context, share_server['share_network_subnet']['id'])
         self.share_manager._form_server_setup_info.assert_called_once_with(
-            self.context, share_server, share_network)
+            self.context, share_server, share_network, share_net_subnet)
         self.share_manager.driver.setup_server.assert_called_once_with(
             network_info, metadata=metadata)
         self.share_manager.db.share_server_update.assert_called_once_with(
@@ -3067,16 +3122,18 @@ class ShareManagerTestCase(test.TestCase):
             {'status': constants.STATUS_ACTIVE,
              'identifier': share_server['id']})
         self.share_manager.driver.allocate_network.assert_called_once_with(
-            self.context, share_server, share_network)
+            self.context, share_server, share_network, share_net_subnet)
 
     def setup_server_raise_exception(self, detail_data_proper):
         # Setup required test data
-        share_server = {
-            'id': 'fake_id',
-            'share_network_id': 'fake_sn_id',
-        }
         server_info = {'details_key': 'value'}
         share_network = {'id': 'fake_sn_id'}
+        share_net_subnet = {'id': 'fake_sns_id',
+                            'share_network_id': share_network['id']}
+        share_server = {
+            'id': 'fake_id',
+            'share_network_subnet': share_net_subnet
+        }
         network_info = {
             'fake_network_info_key': 'fake_network_info_value',
             'security_services': [],
@@ -3092,6 +3149,8 @@ class ShareManagerTestCase(test.TestCase):
         # Mock required parameters
         self.mock_object(self.share_manager.db, 'share_network_get',
                          mock.Mock(return_value=share_network))
+        self.mock_object(self.share_manager.db, 'share_network_subnet_get',
+                         mock.Mock(return_value=share_net_subnet))
         self.mock_object(self.share_manager.db, 'share_server_update')
         for m in ['deallocate_network', 'allocate_network']:
             self.mock_object(self.share_manager.driver, m)
@@ -3117,15 +3176,17 @@ class ShareManagerTestCase(test.TestCase):
                 assert_called_once_with(
                     self.context, share_server['id'], server_info))
         self.share_manager._form_server_setup_info.assert_called_once_with(
-            self.context, share_server, share_network)
+            self.context, share_server, share_network, share_net_subnet)
         self.share_manager.db.share_server_update.assert_called_once_with(
             self.context, share_server['id'],
             {'status': constants.STATUS_ERROR})
-        self.share_manager.db.share_network_get.assert_has_calls([
-            mock.call(self.context, share_server['share_network_id']),
-            mock.call(self.context, share_server['share_network_id'])])
+        self.share_manager.db.share_network_get.assert_called_once_with(
+            self.context, share_net_subnet['share_network_id'])
+        self.share_manager.db.share_network_subnet_get.assert_called_once_with(
+            self.context, share_server['share_network_subnet']['id'])
         self.share_manager.driver.allocate_network.assert_has_calls([
-            mock.call(self.context, share_server, share_network)])
+            mock.call(self.context, share_server, share_network,
+                      share_net_subnet)])
         self.share_manager.driver.deallocate_network.assert_has_calls([
             mock.call(self.context, share_server['id'])])
 
@@ -3151,13 +3212,17 @@ class ShareManagerTestCase(test.TestCase):
             if not isinstance(d, dict):
                 return {}
             return d
-
-        share_server = {'id': 'fake', 'share_network_id': 'fake'}
+        share_net_subnet = db_utils.create_share_network_subnet(
+            id='fake_subnet_id', share_network_id='fake_share_net_id'
+        )
+        share_server = db_utils.create_share_server(
+            id='fake', share_network_subnet_id=share_net_subnet['id'])
         details = get_server_details_from_data(data)
 
         exc_mock = mock.Mock(side_effect=exception.ManilaException(**data))
         details_mock = mock.Mock(side_effect=exception.ManilaException())
-        self.mock_object(self.share_manager.db, 'share_network_get', exc_mock)
+        self.mock_object(self.share_manager.db, 'share_network_get',
+                         exc_mock)
         self.mock_object(self.share_manager.db,
                          'share_server_backend_details_set', details_mock)
         self.mock_object(self.share_manager.db, 'share_server_update')
@@ -3242,28 +3307,31 @@ class ShareManagerTestCase(test.TestCase):
         fake_share_server = dict(
             id='fake_share_server_id', backend_details=dict(foo='bar'))
         fake_share_network = dict(
+            security_services='fake_security_services'
+        )
+        fake_share_network_subnet = dict(
             segmentation_id='fake_segmentation_id',
             cidr='fake_cidr',
             neutron_net_id='fake_neutron_net_id',
             neutron_subnet_id='fake_neutron_subnet_id',
-            security_services='fake_security_services',
             network_type='fake_network_type')
         expected = dict(
             server_id=fake_share_server['id'],
-            segmentation_id=fake_share_network['segmentation_id'],
-            cidr=fake_share_network['cidr'],
-            neutron_net_id=fake_share_network['neutron_net_id'],
-            neutron_subnet_id=fake_share_network['neutron_subnet_id'],
+            segmentation_id=fake_share_network_subnet['segmentation_id'],
+            cidr=fake_share_network_subnet['cidr'],
+            neutron_net_id=fake_share_network_subnet['neutron_net_id'],
+            neutron_subnet_id=fake_share_network_subnet['neutron_subnet_id'],
             security_services=fake_share_network['security_services'],
             network_allocations=(
                 fake_network_allocations_get_for_share_server()),
             admin_network_allocations=(
                 fake_network_allocations_get_for_share_server(label='admin')),
             backend_details=fake_share_server['backend_details'],
-            network_type=fake_share_network['network_type'])
+            network_type=fake_share_network_subnet['network_type'])
 
         network_info = self.share_manager._form_server_setup_info(
-            self.context, fake_share_server, fake_share_network)
+            self.context, fake_share_server, fake_share_network,
+            fake_share_network_subnet)
 
         self.assertEqual(expected, network_info)
         (self.share_manager.db.network_allocations_get_for_share_server.
@@ -3674,12 +3742,20 @@ class ShareManagerTestCase(test.TestCase):
             'host': "fake_host",
             'availability_zone_id': 'fake_az',
         }
+        fake_subnet = {
+            'id': 'fake_subnet_id'
+        }
         self.mock_object(
             self.share_manager.db, 'share_group_get',
             mock.Mock(return_value=fake_group))
         self.mock_object(
             self.share_manager.db, 'share_group_update',
             mock.Mock(return_value=fake_group))
+        self.mock_object(
+            self.share_manager.db,
+            'share_network_subnet_get_by_availability_zone_id',
+            mock.Mock(return_value=fake_subnet)
+        )
         self.mock_object(
             self.share_manager, '_provide_share_server_for_share_group',
             mock.Mock(return_value=({}, fake_group)))
@@ -3757,7 +3833,9 @@ class ShareManagerTestCase(test.TestCase):
             'share_server_id': 'fake_ss_id',
             'availability_zone_id': 'fake_az',
         }
-        fake_ss = {'id': 'fake_ss_id', 'share_network_id': 'fake_sn'}
+        fake_sn = {'id': 'fake_sn_id'}
+        fake_sns = {'id': 'fake_sns_id', 'share_network_id': fake_sn['id']}
+        fake_ss = {'id': 'fake_ss_id', 'share_network_subnet': fake_sns}
         fake_snap = {'id': 'fake_snap_id', 'share_group_snapshot_members': [],
                      'share_group': {'share_server_id': fake_ss['id']}}
         self.mock_object(self.share_manager.db, 'share_group_get',
@@ -3823,6 +3901,9 @@ class ShareManagerTestCase(test.TestCase):
         self.mock_object(self.share_manager.driver.configuration, 'safe_get',
                          mock.Mock(return_value=True))
         share_network_id = 'fake_sn'
+        share_network_subnet = {
+            'id': 'fake_subnet_id'
+        }
         fake_group = {
             'id': 'fake_id',
             'source_share_group_snapshot_id': 'fake_snap_id',
@@ -3837,6 +3918,9 @@ class ShareManagerTestCase(test.TestCase):
                          mock.Mock(return_value=fake_snap))
         self.mock_object(self.share_manager.db, 'share_group_update',
                          mock.Mock(return_value=fake_group))
+        self.mock_object(self.share_manager.db,
+                         'share_network_subnet_get_by_availability_zone_id',
+                         mock.Mock(return_value=share_network_subnet))
         self.mock_object(
             self.share_manager, '_provide_share_server_for_share_group',
             mock.Mock(return_value=({}, fake_group)))
@@ -5564,6 +5648,8 @@ class ShareManagerTestCase(test.TestCase):
         share_server = db_utils.create_share_server(**fake_share_server)
         security_service = db_utils.create_security_service(**ss_data)
         share_network = db_utils.create_share_network()
+        share_net_subnet = db_utils.create_share_network_subnet(
+            share_network_id=share_network['id'])
         db.share_network_add_security_service(context.get_admin_context(),
                                               share_network['id'],
                                               security_service['id'])
@@ -5577,6 +5663,10 @@ class ShareManagerTestCase(test.TestCase):
             db, 'share_server_get', mock.Mock(return_value=share_server))
         mock_share_network_get = self.mock_object(
             db, 'share_network_get', mock.Mock(return_value=share_network))
+        mock_share_net_subnet_get = self.mock_object(
+            db, 'share_network_subnet_get', mock.Mock(
+                return_value=share_net_subnet)
+        )
         mock_network_allocations_get = self.mock_object(
             self.share_manager.driver, 'get_network_allocations_number',
             mock.Mock(return_value=1))
@@ -5627,7 +5717,11 @@ class ShareManagerTestCase(test.TestCase):
         )
         mock_share_network_get.assert_called_once_with(
             utils.IsAMatcher(context.RequestContext),
-            fake_share_server['share_network_id']
+            share_net_subnet['share_network_id']
+        )
+        mock_share_net_subnet_get.assert_called_once_with(
+            utils.IsAMatcher(context.RequestContext),
+            fake_share_server['share_network_subnet_id']
         )
         mock_network_allocations_get.assert_called_once_with()
         mock_share_server_net_info.assert_called_once_with(
@@ -5636,7 +5730,8 @@ class ShareManagerTestCase(test.TestCase):
         )
         mock_manage_network_allocations.assert_called_once_with(
             utils.IsAMatcher(context.RequestContext),
-            fake_list_network_info, share_server, share_network
+            fake_list_network_info, share_server, share_network,
+            share_net_subnet
         )
         mock_manage_server.assert_called_once_with(
             utils.IsAMatcher(context.RequestContext), share_server, identifier,
@@ -5673,12 +5768,19 @@ class ShareManagerTestCase(test.TestCase):
         identifier = 'fake_id'
         share_server = db_utils.create_share_server(**fake_share_server)
         share_network = db_utils.create_share_network()
+        share_network_subnet = db_utils.create_share_network_subnet(
+            share_network_id=share_network['id']
+        )
+        share_server['share_network_subnet_id'] = share_network_subnet['id']
         self.share_manager.driver._admin_network_api = mock.Mock()
 
         mock_share_server_get = self.mock_object(
             db, 'share_server_get', mock.Mock(return_value=share_server))
         mock_share_network_get = self.mock_object(
             db, 'share_network_get', mock.Mock(return_value=share_network))
+        mock_share_net_subnet_get = self.mock_object(
+            db, 'share_network_subnet_get', mock.Mock(
+                return_value=share_network_subnet))
         mock_network_allocations_get = self.mock_object(
             self.share_manager.driver, 'get_network_allocations_number',
             mock.Mock(return_value=1))
@@ -5697,7 +5799,11 @@ class ShareManagerTestCase(test.TestCase):
         )
         mock_share_network_get.assert_called_once_with(
             utils.IsAMatcher(context.RequestContext),
-            fake_share_server['share_network_id']
+            share_network_subnet['share_network_id']
+        )
+        mock_share_net_subnet_get.assert_called_once_with(
+            utils.IsAMatcher(context.RequestContext),
+            share_server['share_network_subnet_id']
         )
         mock_network_allocations_get.assert_called_once_with()
         mock_get_share_network_info.assert_called_once_with(
@@ -5712,12 +5818,19 @@ class ShareManagerTestCase(test.TestCase):
         identifier = 'fake_id'
         share_server = db_utils.create_share_server(**fake_share_server)
         share_network = db_utils.create_share_network()
+        share_network_subnet = db_utils.create_share_network_subnet(
+            share_network_id=share_network['id']
+        )
+        share_server['share_network_subnet_id'] = share_network_subnet['id']
         self.share_manager.driver._admin_network_api = mock.Mock()
 
         mock_share_server_get = self.mock_object(
             db, 'share_server_get', mock.Mock(return_value=share_server))
         mock_share_network_get = self.mock_object(
             db, 'share_network_get', mock.Mock(return_value=share_network))
+        mock_share_net_subnet_get = self.mock_object(
+            db, 'share_network_subnet_get', mock.Mock(
+                return_value=share_network_subnet))
         mock_network_allocations_get = self.mock_object(
             self.share_manager.driver, 'get_network_allocations_number',
             mock.Mock(return_value=1))
@@ -5744,7 +5857,11 @@ class ShareManagerTestCase(test.TestCase):
         )
         mock_share_network_get.assert_called_once_with(
             utils.IsAMatcher(context.RequestContext),
-            fake_share_server['share_network_id']
+            share_network_subnet['share_network_id']
+        )
+        mock_share_net_subnet_get.assert_called_once_with(
+            utils.IsAMatcher(context.RequestContext),
+            share_server['share_network_subnet_id']
         )
         mock_network_allocations_get.assert_called_once_with()
         mock_get_share_network_info.assert_called_once_with(
@@ -5757,7 +5874,8 @@ class ShareManagerTestCase(test.TestCase):
         )
         mock_manage_network_allocations.assert_called_once_with(
             utils.IsAMatcher(context.RequestContext),
-            fake_list_network_info, share_server, share_network
+            fake_list_network_info, share_server, share_network,
+            share_network_subnet
         )
 
     def test_manage_snapshot_driver_exception(self):

manila/tests/test_exception.py

@@ -303,6 +303,14 @@ class ManilaExceptionResponseCode404(test.TestCase):
         self.assertEqual(404, e.code)
         self.assertIn(share_network_id, e.msg)
 
+    def test_share_network_subnet_not_found(self):
+        # Verify response code for exception.ShareNetworkSubnetNotFound
+        share_network_subnet_id = "fake_share_network_subnet_id"
+        e = exception.ShareNetworkSubnetNotFound(
+            share_network_subnet_id=share_network_subnet_id)
+        self.assertEqual(404, e.code)
+        self.assertIn(share_network_subnet_id, e.msg)
+
     def test_share_server_not_found(self):
         # Verify response code for exception.ShareServerNotFound
         share_server_id = "fake_share_server_id"

releasenotes/notes/share-network-with-multiple-subnets-a56be8b646b9e463.yaml

@@ -0,0 +1,21 @@
+---
+features:
+  - Added APIs with default policy set to 'rule:default' that allow the
+    creation of share networks with multiple subnets. This gives the users
+    the ability to create multiple subnets in a share network for different
+    availability zones. Also, users will be able to delete and show
+    existing subnets.
+  - Updated the share server API to make possible to manage share servers
+    in a specific subnet when the driver is operating in
+    ``driver_handles_share_servers`` enabled mode.
+  - Share servers are now associated with a single share network subnet, which
+    pertain to a share network.
+upgrade:
+  - On upgrading to this release, all existing share networks will be updated
+    to accommodate an availability zone assignment. Existing share networks
+    will have their availability zone set to "empty" indicating that they are
+    available across all storage availability zones known to manila.
+fixes:
+  - A share network cannot be provided while creating a share replica. Replicas
+    will inherit the share's share network if one exists.
+