manila/manila/api/v2/share_servers.py

421 lines
17 KiB
Python

# 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 http import client as http_client
from oslo_log import log
import webob
from webob import exc
from manila.api import common
from manila.api.openstack import wsgi
from manila.api.v1 import share_servers
from manila.api.views import share_server_migration as server_migration_views
from manila.common import constants
from manila.db import api as db_api
from manila import exception
from manila.i18n import _
from manila.share import utils as share_utils
from manila import utils
LOG = log.getLogger(__name__)
class ShareServerController(share_servers.ShareServerController,
wsgi.Controller,
wsgi.AdminActionsMixin):
"""The Share Server API V2 controller for the OpenStack API."""
def __init__(self):
super(ShareServerController, self).__init__()
self._migration_view_builder = server_migration_views.ViewBuilder()
valid_statuses = {
'status': set(constants.SHARE_SERVER_STATUSES),
'task_state': set(constants.SERVER_TASK_STATE_STATUSES),
}
def _update(self, context, id, update):
db_api.share_server_update(context, id, update)
@wsgi.Controller.api_version('2.49')
@wsgi.action('reset_status')
def share_server_reset_status(self, req, id, body):
return self._reset_status(req, id, body)
@wsgi.Controller.authorize('manage_share_server')
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, network_subnet = (
self._validate_manage_share_server_parameters(context, body))
try:
result = self.share_api.manage_share_server(
context, identifier, host, network_subnet, driver_opts)
except exception.InvalidInput as 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 share_network['name']:
result.share_network_name = share_network['name']
else:
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 # noqa F811
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']
LOG.debug("Unmanage Share Server with id: %s", id)
# force's default value is False
# force will be True if body is {'unmanage': {'force': True}}
force = (body.get('unmanage') or {}).get('force', False) or False
try:
share_server = db_api.share_server_get(
context, id)
except exception.ShareServerNotFound as e:
raise exc.HTTPNotFound(explanation=e.msg)
if len(share_server['share_network_subnets']) > 1:
msg = _("Cannot unmanage the share server containing multiple "
"subnets.")
raise exc.HTTPBadRequest(explanation=msg)
share_network_id = share_server['share_network_id']
share_network = db_api.share_network_get(context, share_network_id)
common.check_share_network_is_active(share_network)
allowed_statuses = [constants.STATUS_ERROR, constants.STATUS_ACTIVE,
constants.STATUS_MANAGE_ERROR,
constants.STATUS_UNMANAGE_ERROR]
if share_server['status'] not in allowed_statuses:
data = {
'status': share_server['status'],
'allowed_statuses': ', '.join(allowed_statuses),
}
msg = _("Share server's actual status is %(status)s, allowed "
"statuses for unmanaging are "
"%(allowed_statuses)s.") % data
raise exc.HTTPBadRequest(explanation=msg)
try:
self.share_api.unmanage_share_server(
context, share_server, force=force)
except (exception.ShareServerInUse,
exception.PolicyNotAuthorized) as e:
raise exc.HTTPBadRequest(explanation=e.msg)
return webob.Response(status_int=http_client.ACCEPTED)
@wsgi.Controller.api_version("2.49")
@wsgi.action('unmanage')
def unmanage(self, req, id, body=None):
"""Unmanage a share server."""
return self._unmanage(req, id, body)
def _validate_manage_share_server_parameters(self, context, body):
if not (body and self.is_valid_body(body, 'share_server')):
msg = _("Share Server entity not found in request body")
raise exc.HTTPUnprocessableEntity(explanation=msg)
required_parameters = ('host', 'share_network_id', 'identifier')
data = body['share_server']
for parameter in required_parameters:
if parameter not in data:
msg = _("Required parameter %s not found") % parameter
raise exc.HTTPBadRequest(explanation=msg)
if not data.get(parameter):
msg = _("Required parameter %s is empty") % parameter
raise exc.HTTPBadRequest(explanation=msg)
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_subnets = (
db_api.share_network_subnet_get_all_with_same_az(
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_subnets = db_api.share_network_subnet_get_default_subnets(
context, share_network_id)
if not network_subnets:
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 len(network_subnets) > 1:
msg = _("Cannot manage the share server, since the share network "
"subnet %s has more subnets in its availability "
"zone and share network.") % network_subnet_id
raise exc.HTTPBadRequest(explanation=msg)
network_subnet = network_subnets[0]
common.check_share_network_is_active(network_subnet['share_network'])
if share_utils.extract_host(host, 'pool'):
msg = _("Host parameter should not contain pool.")
raise exc.HTTPBadRequest(explanation=msg)
try:
utils.validate_service_host(
context, share_utils.extract_host(host))
except exception.ServiceNotFound as e:
raise exc.HTTPBadRequest(explanation=e.msg)
except exception.PolicyNotAuthorized as e:
raise exc.HTTPForbidden(explanation=e.msg)
except exception.AdminRequired as e:
raise exc.HTTPForbidden(explanation=e.msg)
except exception.ServiceIsDown as e:
raise exc.HTTPBadRequest(explanation=e.msg)
try:
share_network = db_api.share_network_get(
context, share_network_id)
except exception.ShareNetworkNotFound as e:
raise exc.HTTPBadRequest(explanation=e.msg)
driver_opts = data.get('driver_options')
if driver_opts is not None and not isinstance(driver_opts, dict):
msg = _("Driver options must be in dictionary format.")
raise exc.HTTPBadRequest(explanation=msg)
return identifier, host, share_network, driver_opts, network_subnet
@wsgi.Controller.api_version('2.57', experimental=True)
@wsgi.action("migration_start")
@wsgi.Controller.authorize
@wsgi.response(http_client.ACCEPTED)
def share_server_migration_start(self, req, id, body):
"""Migrate a share server to the specified host."""
context = req.environ['manila.context']
try:
share_server = db_api.share_server_get(
context, id)
except exception.ShareServerNotFound as e:
raise exc.HTTPNotFound(explanation=e.msg)
params = body.get('migration_start')
if not params:
raise exc.HTTPBadRequest(explanation=_("Request is missing body."))
bool_params = ['writable', 'nondisruptive', 'preserve_snapshots']
mandatory_params = bool_params + ['host']
utils.check_params_exist(mandatory_params, params)
bool_param_values = utils.check_params_are_boolean(bool_params, params)
pool_was_specified = len(params['host'].split('#')) > 1
if pool_was_specified:
msg = _('The destination host can not contain pool information.')
raise exc.HTTPBadRequest(explanation=msg)
new_share_network = None
new_share_network_id = params.get('new_share_network_id', None)
if new_share_network_id:
try:
new_share_network = db_api.share_network_get(
context, new_share_network_id)
except exception.NotFound:
msg = _("Share network %s not "
"found.") % new_share_network_id
raise exc.HTTPBadRequest(explanation=msg)
common.check_share_network_is_active(new_share_network)
else:
share_network_id = (
share_server['share_network_id'])
current_share_network = db_api.share_network_get(
context, share_network_id)
common.check_share_network_is_active(current_share_network)
try:
self.share_api.share_server_migration_start(
context, share_server, params['host'],
bool_param_values['writable'],
bool_param_values['nondisruptive'],
bool_param_values['preserve_snapshots'],
new_share_network=new_share_network)
except exception.ServiceIsDown as e:
# NOTE(dviroel): user should check if the host is healthy
raise exc.HTTPBadRequest(explanation=e.msg)
except exception.InvalidShareServer as e:
# NOTE(dviroel): invalid share server meaning that some internal
# resource have a invalid state.
raise exc.HTTPConflict(explanation=e.msg)
except exception.InvalidInput as e:
# User provided controversial parameters in the request
raise exc.HTTPBadRequest(explanation=e.msg)
@wsgi.Controller.api_version('2.57', experimental=True)
@wsgi.action("migration_complete")
@wsgi.Controller.authorize
def share_server_migration_complete(self, req, id, body):
"""Invokes 2nd phase of share server migration."""
context = req.environ['manila.context']
try:
share_server = db_api.share_server_get(
context, id)
except exception.ShareServerNotFound as e:
raise exc.HTTPNotFound(explanation=e.msg)
try:
result = self.share_api.share_server_migration_complete(
context, share_server)
except (exception.InvalidShareServer,
exception.ServiceIsDown) as e:
raise exc.HTTPBadRequest(explanation=e.msg)
return self._migration_view_builder.migration_complete(req, result)
@wsgi.Controller.api_version('2.57', experimental=True)
@wsgi.action("migration_cancel")
@wsgi.Controller.authorize
@wsgi.response(http_client.ACCEPTED)
def share_server_migration_cancel(self, req, id, body):
"""Attempts to cancel share migration."""
context = req.environ['manila.context']
try:
share_server = db_api.share_server_get(
context, id)
except exception.ShareServerNotFound as e:
raise exc.HTTPNotFound(explanation=e.msg)
try:
self.share_api.share_server_migration_cancel(context, share_server)
except (exception.InvalidShareServer,
exception.ServiceIsDown) as e:
raise exc.HTTPBadRequest(explanation=e.msg)
@wsgi.Controller.api_version('2.57', experimental=True)
@wsgi.action("migration_get_progress")
@wsgi.Controller.authorize
def share_server_migration_get_progress(self, req, id, body):
"""Retrieve share server migration progress for a given share."""
context = req.environ['manila.context']
try:
result = self.share_api.share_server_migration_get_progress(
context, id)
except exception.ServiceIsDown as e:
raise exc.HTTPConflict(explanation=e.msg)
except exception.InvalidShareServer as e:
raise exc.HTTPBadRequest(explanation=e.msg)
return self._migration_view_builder.get_progress(req, result)
@wsgi.Controller.api_version('2.57', experimental=True)
@wsgi.action("reset_task_state")
@wsgi.Controller.authorize
def share_server_reset_task_state(self, req, id, body):
return self._reset_status(req, id, body, status_attr='task_state')
@wsgi.Controller.api_version('2.57', experimental=True)
@wsgi.action("migration_check")
@wsgi.Controller.authorize
def share_server_migration_check(self, req, id, body):
"""Check if can migrate a share server to the specified host."""
context = req.environ['manila.context']
try:
share_server = db_api.share_server_get(
context, id)
except exception.ShareServerNotFound as e:
raise exc.HTTPNotFound(explanation=e.msg)
params = body.get('migration_check')
if not params:
raise exc.HTTPBadRequest(explanation=_("Request is missing body."))
bool_params = ['writable', 'nondisruptive', 'preserve_snapshots']
mandatory_params = bool_params + ['host']
utils.check_params_exist(mandatory_params, params)
bool_param_values = utils.check_params_are_boolean(bool_params, params)
pool_was_specified = len(params['host'].split('#')) > 1
if pool_was_specified:
msg = _('The destination host can not contain pool information.')
raise exc.HTTPBadRequest(explanation=msg)
new_share_network = None
new_share_network_id = params.get('new_share_network_id', None)
if new_share_network_id:
try:
new_share_network = db_api.share_network_get(
context, new_share_network_id)
except exception.NotFound:
msg = _("Share network %s not "
"found.") % new_share_network_id
raise exc.HTTPBadRequest(explanation=msg)
common.check_share_network_is_active(new_share_network)
else:
share_network_id = (
share_server['share_network_id'])
current_share_network = db_api.share_network_get(
context, share_network_id)
common.check_share_network_is_active(current_share_network)
try:
result = self.share_api.share_server_migration_check(
context, share_server, params['host'],
bool_param_values['writable'],
bool_param_values['nondisruptive'],
bool_param_values['preserve_snapshots'],
new_share_network=new_share_network)
except exception.ServiceIsDown as e:
# NOTE(dviroel): user should check if the host is healthy
raise exc.HTTPBadRequest(explanation=e.msg)
except exception.InvalidShareServer as e:
# NOTE(dviroel): invalid share server meaning that some internal
# resource have a invalid state.
raise exc.HTTPConflict(explanation=e.msg)
return self._migration_view_builder.build_check_migration(
req, params, result)
def create_resource():
return wsgi.Resource(ShareServerController())