def remove_network_from_dhcp_agent(self,
context,
id,
network_id,
notify=True):
agent = self._get_agent(context, id)
binding_obj = network.NetworkDhcpAgentBinding.get_object(
context, network_id=network_id, dhcp_agent_id=id)
if not binding_obj:
raise das_exc.NetworkNotHostedByDhcpAgent(network_id=network_id,
agent_id=id)
# reserve the port, so the ip is reused on a subsequent add
device_id = utils.get_dhcp_agent_device_id(network_id, agent['host'])
filters = dict(device_id=[device_id])
ports = self.get_ports(context, filters=filters)
# NOTE(kevinbenton): there should only ever be one port per
# DHCP agent per network so we don't have to worry about one
# update_port passing and another failing
for port in ports:
port['device_id'] = constants.DEVICE_ID_RESERVED_DHCP_PORT
try:
self.update_port(context, port['id'], dict(port=port))
except n_exc.PortNotFound:
LOG.debug("DHCP port %s has been deleted concurrently",
port['id'])
binding_obj.delete()
if not notify:
return
dhcp_notifier = self.agent_notifiers.get(constants.AGENT_TYPE_DHCP)
if dhcp_notifier:
dhcp_notifier.network_removed_from_agent(context, network_id,
agent.host)
def test_reschedule_network_from_down_agent_concurrent_removal(self):
self._test_failed_rescheduling(
rn_side_effect=das_exc.NetworkNotHostedByDhcpAgent(
network_id='foo', agent_id='bar'))