![Oleg Bondarev](/assets/img/avatar_default.png)
Rationale behind this is that some plugins may support only dhcp or l3 agent scheduling. The patch is nothing more than refactoring. Functionality was not changed. Fixes bug 1196806 Change-Id: Ie174059adfaed3028bbf65de7bde3497dd9bc664
116 lines
4.8 KiB
Python
116 lines
4.8 KiB
Python
# Copyright (c) 2013 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.common import constants
|
|
from neutron.common import topics
|
|
from neutron.common import utils
|
|
from neutron import manager
|
|
from neutron.openstack.common import log as logging
|
|
from neutron.openstack.common.rpc import proxy
|
|
|
|
|
|
LOG = logging.getLogger(__name__)
|
|
|
|
|
|
class L3AgentNotifyAPI(proxy.RpcProxy):
|
|
"""API for plugin to notify L3 agent."""
|
|
BASE_RPC_API_VERSION = '1.0'
|
|
|
|
def __init__(self, topic=topics.L3_AGENT):
|
|
super(L3AgentNotifyAPI, self).__init__(
|
|
topic=topic, default_version=self.BASE_RPC_API_VERSION)
|
|
|
|
def _notification_host(self, context, method, payload, host):
|
|
"""Notify the agent that is hosting the router."""
|
|
LOG.debug(_('Nofity agent at %(host)s the message '
|
|
'%(method)s'), {'host': host,
|
|
'method': method})
|
|
self.cast(
|
|
context, self.make_msg(method,
|
|
payload=payload),
|
|
topic='%s.%s' % (topics.L3_AGENT, host))
|
|
|
|
def _agent_notification(self, context, method, routers,
|
|
operation, data):
|
|
"""Notify changed routers to hosting l3 agents."""
|
|
adminContext = context.is_admin and context or context.elevated()
|
|
plugin = manager.NeutronManager.get_plugin()
|
|
for router in routers:
|
|
l3_agents = plugin.get_l3_agents_hosting_routers(
|
|
adminContext, [router['id']],
|
|
admin_state_up=True,
|
|
active=True)
|
|
for l3_agent in l3_agents:
|
|
LOG.debug(_('Notify agent at %(topic)s.%(host)s the message '
|
|
'%(method)s'),
|
|
{'topic': l3_agent.topic,
|
|
'host': l3_agent.host,
|
|
'method': method})
|
|
self.cast(
|
|
context, self.make_msg(method,
|
|
routers=[router]),
|
|
topic='%s.%s' % (l3_agent.topic, l3_agent.host))
|
|
|
|
def _notification(self, context, method, routers, operation, data):
|
|
"""Notify all the agents that are hosting the routers."""
|
|
plugin = manager.NeutronManager.get_plugin()
|
|
if utils.is_extension_supported(
|
|
plugin, constants.L3_AGENT_SCHEDULER_EXT_ALIAS):
|
|
adminContext = (context.is_admin and
|
|
context or context.elevated())
|
|
plugin.schedule_routers(adminContext, routers)
|
|
self._agent_notification(
|
|
context, method, routers, operation, data)
|
|
else:
|
|
self.fanout_cast(
|
|
context, self.make_msg(method,
|
|
routers=routers),
|
|
topic=topics.L3_AGENT)
|
|
|
|
def _notification_fanout(self, context, method, router_id):
|
|
"""Fanout the deleted router to all L3 agents."""
|
|
LOG.debug(_('Fanout notify agent at %(topic)s the message '
|
|
'%(method)s on router %(router_id)s'),
|
|
{'topic': topics.L3_AGENT,
|
|
'method': method,
|
|
'router_id': router_id})
|
|
self.fanout_cast(
|
|
context, self.make_msg(method,
|
|
router_id=router_id),
|
|
topic=topics.L3_AGENT)
|
|
|
|
def agent_updated(self, context, admin_state_up, host):
|
|
self._notification_host(context, 'agent_updated',
|
|
{'admin_state_up': admin_state_up},
|
|
host)
|
|
|
|
def router_deleted(self, context, router_id):
|
|
self._notification_fanout(context, 'router_deleted', router_id)
|
|
|
|
def routers_updated(self, context, routers, operation=None, data=None):
|
|
if routers:
|
|
self._notification(context, 'routers_updated', routers,
|
|
operation, data)
|
|
|
|
def router_removed_from_agent(self, context, router_id, host):
|
|
self._notification_host(context, 'router_removed_from_agent',
|
|
{'router_id': router_id}, host)
|
|
|
|
def router_added_to_agent(self, context, routers, host):
|
|
self._notification_host(context, 'router_added_to_agent',
|
|
routers, host)
|
|
|
|
L3AgentNotify = L3AgentNotifyAPI()
|