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[Bug 1291915] [NEW] neutron-netns-cleanup script doesn't work in icehouse/havana, code is broken

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Public bug reported:

1st) Some configuration options are not registered on the tool, but
they're used in neutron.agent.linux.dhcp  during execution

$ neutron-netns-cleanup --debug --force --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/dhcp_agent.ini --config-file  /etc/neutron/plugins/ml2/ml2_conf.ini 
2014-03-12 14:55:44.791 INFO neutron.common.config [-] Logging enabled!
2014-03-12 14:55:44.792 DEBUG neutron.agent.linux.utils [-] Running command: ['sudo', '/usr/bin/neutron-rootwrap', '/etc/neutron/rootwrap.conf', 'ip', 'netns', 'list'] from (pid=1785) create_process /opt/stack/neutron/neutron/agent/linux/utils.py:48
2014-03-12 14:55:45.001 DEBUG neutron.agent.linux.utils [-] 
Command: ['sudo', '/usr/bin/neutron-rootwrap', '/etc/neutron/rootwrap.conf', 'ip', 'netns', 'list']
Exit code: 0
Stdout: 'qdhcp-65cb66de-82d0-407c-aa23-2c544528f0d2\nqrouter-acc5f724-a169-4ffc-9e81-f00d43954509\nqrouter-5ed23337-9538-4994-823f-c64720506e54\n'
Stderr: '' from (pid=1785) execute /opt/stack/neutron/neutron/agent/linux/utils.py:74
2014-03-12 14:55:47.006 ERROR neutron.agent.linux.dhcp [-] Error importing interface driver 'neutron.agent.linux.interface.OVSInterfaceDriver': no such option: ovs_use_veth
Error importing interface driver 'neutron.agent.linux.interface.OVSInterfaceDriver': no such option: ovs_use_veth

2nd) When we try to destroy a network, there's a dependency on the
.namespace attribute of the network, that wasn't before.

Stderr: '' from (pid=1969) execute /opt/stack/neutron/neutron/agent/linux/utils.py:74
2014-03-12 15:08:53.048 ERROR neutron.agent.netns_cleanup_util [-] Error unable to destroy namespace: qdhcp-65cb66de-82d0-407c-aa23-2c544528f0d2
2014-03-12 15:08:53.048 TRACE neutron.agent.netns_cleanup_util Traceback (most recent call last):
2014-03-12 15:08:53.048 TRACE neutron.agent.netns_cleanup_util   File "/opt/stack/neutron/neutron/agent/netns_cleanup_util.py", line 131, in destroy_namespace
2014-03-12 15:08:53.048 TRACE neutron.agent.netns_cleanup_util     kill_dhcp(conf, namespace)
2014-03-12 15:08:53.048 TRACE neutron.agent.netns_cleanup_util   File "/opt/stack/neutron/neutron/agent/netns_cleanup_util.py", line 86, in kill_dhcp
2014-03-12 15:08:53.048 TRACE neutron.agent.netns_cleanup_util     dhcp_driver.disable()
2014-03-12 15:08:53.048 TRACE neutron.agent.netns_cleanup_util   File "/opt/stack/neutron/neutron/agent/linux/dhcp.py", line 181, in disable
2014-03-12 15:08:53.048 TRACE neutron.agent.netns_cleanup_util     self.device_manager.destroy(self.network, self.interface_name)
2014-03-12 15:08:53.048 TRACE neutron.agent.netns_cleanup_util   File "/opt/stack/neutron/neutron/agent/linux/dhcp.py", line 814, in destroy
2014-03-12 15:08:53.048 TRACE neutron.agent.netns_cleanup_util     self.driver.unplug(device_name, namespace=network.namespace)
2014-03-12 15:08:53.048 TRACE neutron.agent.netns_cleanup_util AttributeError: 'FakeNetwork' object has no attribute 'namespace'
2014-03-12 15:08:53.048 TRACE neutron.agent.netns_cleanup_util 


3rd) There was a third problem that I'm trying to reproduce at the moment, I'll update in a while.

** Affects: neutron
     Importance: Undecided
     Assignee: Miguel Angel Ajo (mangelajo)
         Status: New

** Changed in: neutron
     Assignee: (unassigned) => Miguel Angel Ajo (mangelajo)

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https://bugs.launchpad.net/bugs/1291915

Title:
  neutron-netns-cleanup script doesn't work in icehouse/havana, code is
  broken

Status in OpenStack Neutron (virtual network service):
  New

Bug description:
  1st) Some configuration options are not registered on the tool, but
  they're used in neutron.agent.linux.dhcp  during execution

  $ neutron-netns-cleanup --debug --force --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/dhcp_agent.ini --config-file  /etc/neutron/plugins/ml2/ml2_conf.ini 
  2014-03-12 14:55:44.791 INFO neutron.common.config [-] Logging enabled!
  2014-03-12 14:55:44.792 DEBUG neutron.agent.linux.utils [-] Running command: ['sudo', '/usr/bin/neutron-rootwrap', '/etc/neutron/rootwrap.conf', 'ip', 'netns', 'list'] from (pid=1785) create_process /opt/stack/neutron/neutron/agent/linux/utils.py:48
  2014-03-12 14:55:45.001 DEBUG neutron.agent.linux.utils [-] 
  Command: ['sudo', '/usr/bin/neutron-rootwrap', '/etc/neutron/rootwrap.conf', 'ip', 'netns', 'list']
  Exit code: 0
  Stdout: 'qdhcp-65cb66de-82d0-407c-aa23-2c544528f0d2\nqrouter-acc5f724-a169-4ffc-9e81-f00d43954509\nqrouter-5ed23337-9538-4994-823f-c64720506e54\n'
  Stderr: '' from (pid=1785) execute /opt/stack/neutron/neutron/agent/linux/utils.py:74
  2014-03-12 14:55:47.006 ERROR neutron.agent.linux.dhcp [-] Error importing interface driver 'neutron.agent.linux.interface.OVSInterfaceDriver': no such option: ovs_use_veth
  Error importing interface driver 'neutron.agent.linux.interface.OVSInterfaceDriver': no such option: ovs_use_veth

  2nd) When we try to destroy a network, there's a dependency on the
  .namespace attribute of the network, that wasn't before.

  Stderr: '' from (pid=1969) execute /opt/stack/neutron/neutron/agent/linux/utils.py:74
  2014-03-12 15:08:53.048 ERROR neutron.agent.netns_cleanup_util [-] Error unable to destroy namespace: qdhcp-65cb66de-82d0-407c-aa23-2c544528f0d2
  2014-03-12 15:08:53.048 TRACE neutron.agent.netns_cleanup_util Traceback (most recent call last):
  2014-03-12 15:08:53.048 TRACE neutron.agent.netns_cleanup_util   File "/opt/stack/neutron/neutron/agent/netns_cleanup_util.py", line 131, in destroy_namespace
  2014-03-12 15:08:53.048 TRACE neutron.agent.netns_cleanup_util     kill_dhcp(conf, namespace)
  2014-03-12 15:08:53.048 TRACE neutron.agent.netns_cleanup_util   File "/opt/stack/neutron/neutron/agent/netns_cleanup_util.py", line 86, in kill_dhcp
  2014-03-12 15:08:53.048 TRACE neutron.agent.netns_cleanup_util     dhcp_driver.disable()
  2014-03-12 15:08:53.048 TRACE neutron.agent.netns_cleanup_util   File "/opt/stack/neutron/neutron/agent/linux/dhcp.py", line 181, in disable
  2014-03-12 15:08:53.048 TRACE neutron.agent.netns_cleanup_util     self.device_manager.destroy(self.network, self.interface_name)
  2014-03-12 15:08:53.048 TRACE neutron.agent.netns_cleanup_util   File "/opt/stack/neutron/neutron/agent/linux/dhcp.py", line 814, in destroy
  2014-03-12 15:08:53.048 TRACE neutron.agent.netns_cleanup_util     self.driver.unplug(device_name, namespace=network.namespace)
  2014-03-12 15:08:53.048 TRACE neutron.agent.netns_cleanup_util AttributeError: 'FakeNetwork' object has no attribute 'namespace'
  2014-03-12 15:08:53.048 TRACE neutron.agent.netns_cleanup_util 

  
  3rd) There was a third problem that I'm trying to reproduce at the moment, I'll update in a while.

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