def remove_router_from_l3_agent(self, context, agent_id, router_id):
"""Remove the router from l3 agent.
After removal, the router will be non-hosted until there is update
which leads to re-schedule or be added to another agent manually.
"""
agent = self._get_agent(context, agent_id)
agent_mode = self._get_agent_mode(agent)
if agent_mode in [
constants.L3_AGENT_MODE_DVR,
constants.L3_AGENT_MODE_DVR_NO_EXTERNAL
]:
raise l3agentscheduler.DVRL3CannotRemoveFromDvrAgent()
self._unbind_router(context, router_id, agent_id)
router = self.get_router(context, router_id)
if router.get('ha'):
plugin = directory.get_plugin(plugin_constants.L3)
plugin.delete_ha_interfaces_on_host(context, router_id, agent.host)
l3_notifier = self.agent_notifiers.get(constants.AGENT_TYPE_L3)
if not l3_notifier:
return
# NOTE(Swami): Need to verify if there are DVR serviceable
# ports owned by this agent. If owned by this agent, then
# the routers should be retained. This flag will be used
# to check if there are valid routers in this agent.
retain_router = self._check_router_retain_needed(
context, router, agent.host)
if retain_router:
l3_notifier.routers_updated_on_host(context, [router_id],
agent.host)
else:
l3_notifier.router_removed_from_agent(context, router_id,
agent.host)
def remove_router_from_l3_agent(self, context, agent_id, router_id):
"""Remove the router from l3 agent.
After removal, the router will be non-hosted until there is update
which leads to re-schedule or be added to another agent manually.
"""
agent = self._get_agent(context, agent_id)
agent_mode = self._get_agent_mode(agent)
if agent_mode == constants.L3_AGENT_MODE_DVR:
raise l3agentscheduler.DVRL3CannotRemoveFromDvrAgent()
self._unbind_router(context, router_id, agent_id)
router = self.get_router(context, router_id)
plugin = manager.NeutronManager.get_service_plugins().get(
service_constants.L3_ROUTER_NAT)
if router.get('ha'):
plugin.delete_ha_interfaces_on_host(context, router_id, agent.host)
# NOTE(Swami): Need to verify if there are DVR serviceable
# ports owned by this agent. If owned by this agent, then
# the routers should be retained. This flag will be used
# to check if there are valid routers in this agent.
retain_router = False
if router.get('distributed'):
subnet_ids = plugin.get_subnet_ids_on_router(context, router_id)
if subnet_ids and agent.host:
retain_router = plugin._check_dvr_serviceable_ports_on_host(
context, agent.host, subnet_ids)
l3_notifier = self.agent_notifiers.get(constants.AGENT_TYPE_L3)
if retain_router and l3_notifier:
l3_notifier.routers_updated_on_host(
context, [router_id], agent.host)
elif l3_notifier:
l3_notifier.router_removed_from_agent(
context, router_id, agent.host)
def remove_router_from_l3_agent(self, context, agent_id, router_id):
"""Remove the router from l3 agent.
After removal, the router will be non-hosted until there is update
which leads to re-schedule or be added to another agent manually.
"""
agent = self._get_agent(context, agent_id)
agent_mode = self._get_agent_mode(agent)
if agent_mode == n_const.L3_AGENT_MODE_DVR:
raise l3agentscheduler.DVRL3CannotRemoveFromDvrAgent()
self._unbind_router(context, router_id, agent_id)
router = self.get_router(context, router_id)
if router.get('ha'):
plugin = manager.NeutronManager.get_service_plugins().get(
service_constants.L3_ROUTER_NAT)
plugin.delete_ha_interfaces_on_host(context, router_id, agent.host)
l3_notifier = self.agent_notifiers.get(constants.AGENT_TYPE_L3)
if l3_notifier:
l3_notifier.router_removed_from_agent(context, router_id,
agent.host)
