neutron-lib/neutron_lib/agent/topics.py
Miguel Lavalle 1d645c8ef3 Add port bindings to RPC topics resources
This change adds port bindings to the RPC topics resources. It also
adds the 'activate' and 'deactivate' messages for this resource. This
is done in support of the implementation of multiple port bindings.

Change-Id: I5ed542b7a137338a0878f683decc5dcca7f814de
Partial-Bug: #1580880
2018-04-27 11:03:34 -05:00

70 lines
2.2 KiB
Python

# Copyright (c) 2012 OpenStack Foundation.
#
# 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 neutron_lib.api.definitions import network
from neutron_lib.api.definitions import port
from neutron_lib.api.definitions import portbindings_extended
from neutron_lib.api.definitions import subnet
NETWORK = network.RESOURCE_NAME
SUBNET = subnet.RESOURCE_NAME
PORT = port.RESOURCE_NAME
PORT_BINDING = portbindings_extended.RESOURCE_NAME
SECURITY_GROUP = 'security_group'
L2POPULATION = 'l2population'
DVR = 'dvr'
RESOURCES = 'resources'
CREATE = 'create'
DELETE = 'delete'
UPDATE = 'update'
ACTIVATE = 'activate'
DEACTIVATE = 'deactivate'
AGENT = 'q-agent-notifier'
PLUGIN = 'q-plugin'
SERVER_RESOURCE_VERSIONS = 'q-server-resource-versions'
L3PLUGIN = 'q-l3-plugin'
REPORTS = 'q-reports-plugin'
DHCP = 'q-dhcp-notifer'
METERING_PLUGIN = 'q-metering-plugin'
L3_AGENT = 'l3_agent'
DHCP_AGENT = 'dhcp_agent'
METERING_AGENT = 'metering_agent'
RESOURCE_TOPIC_PATTERN = "neutron-vo-%(resource_type)s-%(version)s"
def get_topic_name(prefix, table, operation, host=None):
"""Create a topic name.
The topic name needs to be synced between the agent and the
plugin. The plugin will send a fanout message to all of the
listening agents so that the agents in turn can perform their
updates accordingly.
:param prefix: Common prefix for the plugin/agent message queues.
:param table: The table in question (NETWORK, SUBNET, PORT).
:param operation: The operation that invokes notification (CREATE,
DELETE, UPDATE)
:param host: Add host to the topic
:returns: The topic name.
"""
if host:
return '%s-%s-%s.%s' % (prefix, table, operation, host)
return '%s-%s-%s' % (prefix, table, operation)