58d42b6558
blueprint scalable-agent-comms This is the first stage of the blueprint. This adds support to the linux bridge plugin. The development followed the design described in: https://docs.google.com/document/d/1MbcBA2Os4b98ybdgAw2qe_68R1NG6KMh8zdZKgOlpvg/edit?pli=1 Change-Id: I4004c05a63ce49f020c2016c8763e73238b465a7
43 lines
1.3 KiB
Python
43 lines
1.3 KiB
Python
# Copyright (c) 2012 OpenStack, LLC.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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NETWORK = 'network'
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SUBNET = 'subnet'
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PORT = 'port'
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CREATE = 'create'
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DELETE = 'delete'
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UPDATE = 'update'
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AGENT = 'q-agent-notifier'
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PLUGIN = 'q-plugin'
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def get_topic_name(prefix, table, operation):
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"""Create a topic name.
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The topic name needs to be synced between the agent and the
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plugin. The plugin will send a fanout message to all of the
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listening agents so that the agents in turn can perform their
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updates accordingly.
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:param prefix: Common prefix for the plugin/agent message queues.
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:param table: The table in question (NETWORK, SUBNET, PORT).
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:param operation: The operation that invokes notification (CREATE,
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DELETE, UPDATE)
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:returns: The topic name.
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"""
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return '%s-%s-%s' % (prefix, table, operation)
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