d1f143a266
This is a feature patch (1 of 3) that adds support for DHCP services provided by the NSX (aka NVP) platform. Green-field deployments can use the AGENTLESS mode, which will make the core plugin interact solely with the NSX platform to provide DHCP services. Support for metadata proxy services, migration for brown field deployments will be added in future patches. Partial-implements blueprint nsx-integrated-services Change-Id: Idfc4b2d871e70cd557d8e0e6b23e5563f9ed3420
202 lines
7.3 KiB
Python
202 lines
7.3 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2013 VMware, Inc.
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# All Rights Reserved
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import json
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from neutron.common import exceptions as exception
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from neutron.openstack.common import log
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from neutron.plugins.nicira.common import exceptions as nvp_exc
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from neutron.plugins.nicira.common import utils
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from neutron.plugins.nicira import NvpApiClient
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from neutron.plugins.nicira.nvplib import _build_uri_path
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from neutron.plugins.nicira.nvplib import do_request
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HTTP_GET = "GET"
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HTTP_POST = "POST"
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HTTP_DELETE = "DELETE"
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HTTP_PUT = "PUT"
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SERVICECLUSTER_RESOURCE = "service-cluster"
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LSERVICESNODE_RESOURCE = "lservices-node"
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LSERVICESNODEPORT_RESOURCE = "lport/%s" % LSERVICESNODE_RESOURCE
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LOG = log.getLogger(__name__)
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def service_cluster_exists(cluster, svc_cluster_id):
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exists = False
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try:
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exists = (
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svc_cluster_id and
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do_request(HTTP_GET,
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_build_uri_path(SERVICECLUSTER_RESOURCE,
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resource_id=svc_cluster_id),
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cluster=cluster) is not None)
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except exception.NotFound:
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pass
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return exists
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def lsn_for_network_create(cluster, network_id):
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lsn_obj = {
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"service_cluster_uuid": cluster.default_service_cluster_uuid,
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"tags": utils.get_tags(n_network_id=network_id)
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}
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return do_request(HTTP_POST,
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_build_uri_path(LSERVICESNODE_RESOURCE),
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json.dumps(lsn_obj),
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cluster=cluster)["uuid"]
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def lsn_for_network_get(cluster, network_id):
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filters = {"tag": network_id, "tag_scope": "n_network_id"}
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results = do_request(HTTP_GET,
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_build_uri_path(LSERVICESNODE_RESOURCE,
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fields="uuid",
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filters=filters),
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cluster=cluster)['results']
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if not results:
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raise exception.NotFound()
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elif len(results) == 1:
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return results[0]['uuid']
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def lsn_delete(cluster, lsn_id):
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do_request(HTTP_DELETE,
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_build_uri_path(LSERVICESNODE_RESOURCE,
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resource_id=lsn_id),
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cluster=cluster)
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def lsn_port_create(cluster, lsn_id, port_data):
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port_obj = {
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"ip_address": port_data["ip_address"],
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"mac_address": port_data["mac_address"],
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"tags": utils.get_tags(n_mac_address=port_data["mac_address"],
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n_subnet_id=port_data["subnet_id"]),
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"type": "LogicalServicesNodePortConfig",
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}
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return do_request(HTTP_POST,
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_build_uri_path(LSERVICESNODEPORT_RESOURCE,
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parent_resource_id=lsn_id),
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json.dumps(port_obj),
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cluster=cluster)["uuid"]
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def lsn_port_delete(cluster, lsn_id, lsn_port_id):
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return do_request(HTTP_DELETE,
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_build_uri_path(LSERVICESNODEPORT_RESOURCE,
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parent_resource_id=lsn_id,
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resource_id=lsn_port_id),
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cluster=cluster)
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def _lsn_port_get(cluster, lsn_id, filters):
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results = do_request(HTTP_GET,
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_build_uri_path(LSERVICESNODEPORT_RESOURCE,
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parent_resource_id=lsn_id,
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fields="uuid",
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filters=filters),
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cluster=cluster)['results']
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if not results:
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raise exception.NotFound()
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elif len(results) == 1:
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return results[0]['uuid']
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def lsn_port_by_mac_get(cluster, lsn_id, mac_address):
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filters = {"tag": mac_address, "tag_scope": "n_mac_address"}
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return _lsn_port_get(cluster, lsn_id, filters)
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def lsn_port_by_subnet_get(cluster, lsn_id, subnet_id):
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filters = {"tag": subnet_id, "tag_scope": "n_subnet_id"}
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return _lsn_port_get(cluster, lsn_id, filters)
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def lsn_port_plug_network(cluster, lsn_id, lsn_port_id, lswitch_port_id):
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patch_obj = {
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"type": "PatchAttachment",
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"peer_port_uuid": lswitch_port_id
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}
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try:
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do_request(HTTP_PUT,
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_build_uri_path(LSERVICESNODEPORT_RESOURCE,
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parent_resource_id=lsn_id,
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resource_id=lsn_port_id,
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is_attachment=True),
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json.dumps(patch_obj),
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cluster=cluster)
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except NvpApiClient.Conflict:
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# This restriction might be lifted at some point
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msg = (_("Attempt to plug Logical Services Node %(lsn)s into "
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"network with port %(port)s failed. PatchAttachment "
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"already exists with another port") %
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{'lsn': lsn_id, 'port': lswitch_port_id})
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LOG.exception(msg)
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raise nvp_exc.LsnConfigurationConflict(lsn_id=lsn_id)
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def _lsn_port_configure_action(
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cluster, lsn_id, lsn_port_id, action, is_enabled, obj):
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do_request(HTTP_PUT,
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_build_uri_path(LSERVICESNODE_RESOURCE,
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resource_id=lsn_id,
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extra_action=action),
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json.dumps({"enabled": is_enabled}),
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cluster=cluster)
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do_request(HTTP_PUT,
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_build_uri_path(LSERVICESNODEPORT_RESOURCE,
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parent_resource_id=lsn_id,
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resource_id=lsn_port_id,
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extra_action=action),
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json.dumps(obj),
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cluster=cluster)
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def lsn_port_dhcp_configure(
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cluster, lsn_id, lsn_port_id, is_enabled=True, dhcp_options=None):
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dhcp_options = dhcp_options or {}
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opts = ["%s=%s" % (key, val) for key, val in dhcp_options.iteritems()]
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dhcp_obj = {
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'options': {'options': opts}
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}
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_lsn_port_configure_action(
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cluster, lsn_id, lsn_port_id, 'dhcp', is_enabled, dhcp_obj)
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def _lsn_port_host_action(
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cluster, lsn_id, lsn_port_id, host_obj, extra_action, action):
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do_request(HTTP_POST,
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_build_uri_path(LSERVICESNODEPORT_RESOURCE,
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parent_resource_id=lsn_id,
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resource_id=lsn_port_id,
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extra_action=extra_action,
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filters={"action": action}),
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json.dumps(host_obj),
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cluster=cluster)
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def lsn_port_dhcp_host_add(cluster, lsn_id, lsn_port_id, host_data):
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_lsn_port_host_action(
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cluster, lsn_id, lsn_port_id, host_data, 'dhcp', 'add_host')
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def lsn_port_dhcp_host_remove(cluster, lsn_id, lsn_port_id, host_data):
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_lsn_port_host_action(
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cluster, lsn_id, lsn_port_id, host_data, 'dhcp', 'remove_host')
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