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OpenStack Study: mech_ofagent.py**** CubicPower OpenStack Study ****
# Copyright (C) 2014 VA Linux Systems Japan K.K. # Based on openvswitch mechanism driver. # # Copyright (c) 2013 OpenStack Foundation # 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. # @author: Fumihiko Kakuma, VA Linux Systems Japan K.K. from neutron.common import constants from neutron.extensions import portbindings from neutron.openstack.common import log from neutron.plugins.common import constants as p_const from neutron.plugins.ml2 import driver_api as api from neutron.plugins.ml2.drivers import mech_agent LOG = log.getLogger(__name__)
**** CubicPower OpenStack Study **** class OfagentMechanismDriver(mech_agent.SimpleAgentMechanismDriverBase): """Attach to networks using ofagent L2 agent. The OfagentMechanismDriver integrates the ml2 plugin with the ofagent L2 agent. Port binding with this driver requires the ofagent agent to be running on the port's host, and that agent to have connectivity to at least one segment of the port's network. """
**** CubicPower OpenStack Study **** def __init__(self): super(OfagentMechanismDriver, self).__init__( constants.AGENT_TYPE_OFA, portbindings.VIF_TYPE_OVS, {portbindings.CAP_PORT_FILTER: True, portbindings.OVS_HYBRID_PLUG: True})
**** CubicPower OpenStack Study **** def check_segment_for_agent(self, segment, agent): mappings = agent['configurations'].get('bridge_mappings', {}) tunnel_types = agent['configurations'].get('tunnel_types', []) LOG.debug(_("Checking segment: %(segment)s " "for mappings: %(mappings)s " "with tunnel_types: %(tunnel_types)s"), {'segment': segment, 'mappings': mappings, 'tunnel_types': tunnel_types}) network_type = segment[api.NETWORK_TYPE] return ( network_type == p_const.TYPE_LOCAL or network_type in tunnel_types or (network_type in [p_const.TYPE_FLAT, p_const.TYPE_VLAN] and segment[api.PHYSICAL_NETWORK] in mappings) )
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