def test_delete_vm_port_namespace_already_deleted(self):
ns_to_delete = {
'host': 'myhost',
'agent_id': 'vm_l3_agent',
'router_id': 'my_router'
}
with contextlib.nested(
mock.patch.object(manager.NeutronManager,
'get_service_plugins',
return_value=self.service_plugins),
self.port(do_delete=False, device_owner='compute:None'),
mock.patch.object(self.l3plugin,
'dvr_deletens_if_no_port',
return_value=[ns_to_delete]),
mock.patch.object(
self.l3plugin,
'remove_router_from_l3_agent',
side_effect=l3agentscheduler.RouterNotHostedByL3Agent(
router_id=ns_to_delete['router_id'],
agent_id=ns_to_delete['agent_id']))) as (
get_service_plugin, port, dvr_delns_ifno_port,
remove_router_from_l3_agent):
self.plugin.delete_port(self.context, port['port']['id'])
remove_router_from_l3_agent.assert_called_once_with(
self.context, ns_to_delete['agent_id'],
ns_to_delete['router_id'])
def _unbind_router(self, context, router_id, agent_id):
with context.session.begin(subtransactions=True):
query = context.session.query(RouterL3AgentBinding)
query = query.filter(RouterL3AgentBinding.router_id == router_id,
RouterL3AgentBinding.l3_agent_id == agent_id)
try:
binding = query.one()
except exc.NoResultFound:
raise l3agentscheduler.RouterNotHostedByL3Agent(
router_id=router_id, agent_id=agent_id)
context.session.delete(binding)
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)
with context.session.begin(subtransactions=True):
query = context.session.query(RouterL3AgentBinding)
query = query.filter(RouterL3AgentBinding.router_id == router_id,
RouterL3AgentBinding.l3_agent_id == agent_id)
try:
binding = query.one()
except exc.NoResultFound:
raise l3agentscheduler.RouterNotHostedByL3Agent(
router_id=router_id, agent_id=agent_id)
context.session.delete(binding)
l3_notifier = self.agent_notifiers.get(constants.AGENT_TYPE_L3)
if l3_notifier:
l3_notifier.router_removed_from_agent(context, router_id,
agent.host)