90 lines
3.6 KiB
Python
90 lines
3.6 KiB
Python
# Copyright (c) 2012 OpenStack Foundation.
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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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from oslo.config import cfg
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from neutron.common import constants
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from neutron.common import utils
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from neutron import context as neutron_context
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from neutron.extensions import portbindings
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from neutron import manager
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from neutron.openstack.common import jsonutils
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from neutron.openstack.common import log as logging
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LOG = logging.getLogger(__name__)
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class L3RpcCallbackMixin(object):
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"""A mix-in that enable L3 agent rpc support in plugin implementations."""
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def sync_routers(self, context, **kwargs):
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"""Sync routers according to filters to a specific agent.
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@param context: contain user information
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@param kwargs: host, router_ids
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@return: a list of routers
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with their interfaces and floating_ips
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"""
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router_ids = kwargs.get('router_ids')
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host = kwargs.get('host')
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context = neutron_context.get_admin_context()
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plugin = manager.NeutronManager.get_plugin()
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if utils.is_extension_supported(
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plugin, constants.L3_AGENT_SCHEDULER_EXT_ALIAS):
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if cfg.CONF.router_auto_schedule:
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plugin.auto_schedule_routers(context, host, router_ids)
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routers = plugin.list_active_sync_routers_on_active_l3_agent(
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context, host, router_ids)
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else:
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routers = plugin.get_sync_data(context, router_ids)
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if utils.is_extension_supported(
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plugin, constants.PORT_BINDING_EXT_ALIAS):
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self._ensure_host_set_on_ports(context, plugin, host, routers)
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LOG.debug(_("Routers returned to l3 agent:\n %s"),
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jsonutils.dumps(routers, indent=5))
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return routers
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def _ensure_host_set_on_ports(self, context, plugin, host, routers):
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for router in routers:
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LOG.debug(_("Checking router: %(id)s for host: %(host)s"),
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{'id': router['id'], 'host': host})
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self._ensure_host_set_on_port(context, plugin, host,
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router.get('gw_port'))
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for interface in router.get(constants.INTERFACE_KEY, []):
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self._ensure_host_set_on_port(context, plugin, host,
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interface)
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def _ensure_host_set_on_port(self, context, plugin, host, port):
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if (port and
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(port.get(portbindings.HOST_ID) != host or
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port.get(portbindings.VIF_TYPE) ==
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portbindings.VIF_TYPE_BINDING_FAILED)):
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plugin.update_port(context, port['id'],
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{'port': {portbindings.HOST_ID: host}})
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def get_external_network_id(self, context, **kwargs):
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"""Get one external network id for l3 agent.
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l3 agent expects only on external network when it performs
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this query.
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"""
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context = neutron_context.get_admin_context()
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plugin = manager.NeutronManager.get_plugin()
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net_id = plugin.get_external_network_id(context)
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LOG.debug(_("External network ID returned to l3 agent: %s"),
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net_id)
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return net_id
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