8bc02a7fbe
The ml2 plugin uses mechanism drivers to determine which network segment and what VIF driver to use for a port. Mechanism drivers supporting the openvswitch, linuxbridge, and hyperv agents are added. The binding:host attribute is set on ports belonging to the dhcp and l3 agents so that they can be bound. To use with devstack until it is updated, set "Q_ML2_PLUGIN_MECHANISM_DRIVERS=openvswitch,linuxbridge" in localrc. The hyperv L2 agent does not currently implement the agents_db RPC, and will therefore not work with its ml2 mechanism driver. This issue will be tracked as a bug to be fixed in a separate merge. implements blueprint: ml2-portbinding Change-Id: Icb9c70d8b0d7fcb34b57adc760bb713b740e5dad
52 lines
2.0 KiB
Python
52 lines
2.0 KiB
Python
# Copyright (c) 2013 OpenStack Foundation
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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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from neutron.common import constants
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from neutron.extensions import portbindings
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from neutron.openstack.common import log
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from neutron.plugins.ml2 import driver_api as api
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from neutron.plugins.ml2.drivers import mech_agent
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LOG = log.getLogger(__name__)
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class HypervMechanismDriver(mech_agent.AgentMechanismDriverBase):
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"""Attach to networks using hyperv L2 agent.
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The HypervMechanismDriver integrates the ml2 plugin with the
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hyperv L2 agent. Port binding with this driver requires the hyperv
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agent to be running on the port's host, and that agent to have
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connectivity to at least one segment of the port's network.
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"""
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def __init__(self):
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super(HypervMechanismDriver, self).__init__(
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constants.AGENT_TYPE_HYPERV,
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portbindings.VIF_TYPE_HYPERV,
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False)
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def check_segment_for_agent(self, segment, agent):
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mappings = agent['configurations'].get('vswitch_mappings', {})
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LOG.debug(_("Checking segment: %(segment)s "
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"for mappings: %(mappings)s"),
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{'segment': segment, 'mappings': mappings})
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network_type = segment[api.NETWORK_TYPE]
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if network_type == 'local':
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return True
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elif network_type in ['flat', 'vlan']:
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return segment[api.PHYSICAL_NETWORK] in mappings
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else:
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return False
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