Fix netns-cleanup broken by ProcessMonitor refactor

Change I0da6071037f9728cc20403324e36c32116bcf00d broke the
netns-cleanup script. As the process_monitor parameter
is now mandatory for the dhcp driver.

Change-Id: I69617c67815b71a05a25936c5e7acc7c116c0dd6
Closes-bug: #1430762

neutron/cmd/netns_cleanup.py

@@ -23,6 +23,7 @@ from neutron.agent.common import config as agent_config
 from neutron.agent.dhcp import config as dhcp_config
 from neutron.agent.l3 import agent as l3_agent
 from neutron.agent.linux import dhcp
+from neutron.agent.linux import external_process
 from neutron.agent.linux import interface
 from neutron.agent.linux import ip_lib
 from neutron.agent.linux import ovs_lib
@@ -69,6 +70,11 @@ def setup_conf():
     return conf
 
 
+def _get_dhcp_process_monitor(config):
+    return external_process.ProcessMonitor(config=config,
+                                           resource_type='dhcp')
+
+
 def kill_dhcp(conf, namespace):
     """Disable DHCP for a network if DHCP is still active."""
     network_id = namespace.replace(dhcp.NS_PREFIX, '')
@@ -76,6 +82,7 @@ def kill_dhcp(conf, namespace):
     dhcp_driver = importutils.import_object(
         conf.dhcp_driver,
         conf=conf,
+        process_monitor=_get_dhcp_process_monitor(conf),
         network=dhcp.NetModel(conf.use_namespaces, {'id': network_id}),
         plugin=FakeDhcpPlugin())
 

neutron/tests/unit/test_netns_cleanup.py

@@ -35,6 +35,7 @@ class TestNetnsCleanup(base.BaseTestCase):
             util.kill_dhcp(conf, 'ns')
 
             expected_params = {'conf': conf, 'network': mock.ANY,
+                               'process_monitor': mock.ANY,
                                'plugin': mock.ANY}
             import_object.assert_called_once_with('driver', **expected_params)