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[Bug 1404085] Re: l3 agent failed to spawn radvd due to no filter matched

 

** Changed in: tripleo
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1404085

Title:
  l3 agent failed to spawn radvd due to no filter matched

Status in OpenStack Neutron (virtual network service):
  Invalid
Status in tripleo - openstack on openstack:
  Fix Released

Bug description:
  i have an openstack deployment by tripleo with trunk code as of last
  week or so. i created an ipv6 subnet with slaac mode for ra and
  address. when i launched a ubuntu trusty vm, it couldn't get ipv6
  address.

  the l3 agent log said:
  Dec 18 11:23:34 ci-overcloud-controller0-oxzkjphwfyw3 neutron-l3-agent: Stderr: '/usr/bin/neutron-rootwrap: Unauthorized command: ip netns exec qrouter-6066faaa-0e35-4e7b-8988-7337c493bad7 radvd -C /var/run/neutron/ra/6066faaa-0e35-4e7b-8988-7337c493bad7.radvd.conf -p /var/run/neutron/external/pids/6066faaa-0e35-4e7b-8988-7337c493bad7.pid.radvd (no filter matched)\n'
  Dec 18 11:23:34 ci-overcloud-controller0-oxzkjphwfyw3 neutron-l3-agent: 2014-12-18 11:23:34.611 18015 TRACE neutron.agent.l3_agent Traceback (most recent call last):
  Dec 18 11:23:34 ci-overcloud-controller0-oxzkjphwfyw3 neutron-l3-agent: 2014-12-18 11:23:34.611 18015 TRACE neutron.agent.l3_agent   File "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutron/common/utils.py", line 341, in call
  Dec 18 11:23:34 ci-overcloud-controller0-oxzkjphwfyw3 neutron-l3-agent: 2014-12-18 11:23:34.611 18015 TRACE neutron.agent.l3_agent     return func(*args, **kwargs)
  Dec 18 11:23:34 ci-overcloud-controller0-oxzkjphwfyw3 neutron-l3-agent: 2014-12-18 11:23:34.611 18015 TRACE neutron.agent.l3_agent   File "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutron/agent/l3_agent.py", line 902, in process_router
  Dec 18 11:23:34 ci-overcloud-controller0-oxzkjphwfyw3 neutron-l3-agent: 2014-12-18 11:23:34.611 18015 TRACE neutron.agent.l3_agent     self.root_helper)
  Dec 18 11:23:34 ci-overcloud-controller0-oxzkjphwfyw3 neutron-l3-agent: 2014-12-18 11:23:34.611 18015 TRACE neutron.agent.l3_agent   File "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutron/agent/linux/ra.py", line 111, in enable_ipv6_ra
  Dec 18 11:23:34 ci-overcloud-controller0-oxzkjphwfyw3 neutron-l3-agent: 2014-12-18 11:23:34.611 18015 TRACE neutron.agent.l3_agent     _spawn_radvd(router_id, radvd_conf, router_ns, root_helper)
  Dec 18 11:23:34 ci-overcloud-controller0-oxzkjphwfyw3 neutron-l3-agent: 2014-12-18 11:23:34.611 18015 TRACE neutron.agent.l3_agent   File "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutron/agent/linux/ra.py", line 95, in _spawn_radvd
  Dec 18 11:23:34 ci-overcloud-controller0-oxzkjphwfyw3 neutron-l3-agent: 2014-12-18 11:23:34.611 18015 TRACE neutron.agent.l3_agent     radvd.enable(callback, True)
  Dec 18 11:23:34 ci-overcloud-controller0-oxzkjphwfyw3 neutron-l3-agent: 2014-12-18 11:23:34.611 18015 TRACE neutron.agent.l3_agent   File "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutron/agent/linux/external_process.py", line 77, in enable
  Dec 18 11:23:34 ci-overcloud-controller0-oxzkjphwfyw3 neutron-l3-agent: 2014-12-18 11:23:34.611 18015 TRACE neutron.agent.l3_agent     ip_wrapper.netns.execute(cmd, addl_env=self.cmd_addl_env)
  Dec 18 11:23:34 ci-overcloud-controller0-oxzkjphwfyw3 neutron-l3-agent: 2014-12-18 11:23:34.611 18015 TRACE neutron.agent.l3_agent   File "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutron/agent/linux/ip_lib.py", line 554, in execute
  Dec 18 11:23:34 ci-overcloud-controller0-oxzkjphwfyw3 neutron-l3-agent: 2014-12-18 11:23:34.611 18015 TRACE neutron.agent.l3_agent     check_exit_code=check_exit_code, extra_ok_codes=extra_ok_codes)
  Dec 18 11:23:34 ci-overcloud-controller0-oxzkjphwfyw3 neutron-l3-agent: 2014-12-18 11:23:34.611 18015 TRACE neutron.agent.l3_agent   File "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutron/agent/linux/utils.py", line 82, in execute
  Dec 18 11:23:34 ci-overcloud-controller0-oxzkjphwfyw3 neutron-l3-agent: 2014-12-18 11:23:34.611 18015 TRACE neutron.agent.l3_agent     raise RuntimeError(m)
  Dec 18 11:23:34 ci-overcloud-controller0-oxzkjphwfyw3 neutron-l3-agent: 2014-12-18 11:23:34.611 18015 TRACE neutron.agent.l3_agent RuntimeError:
  Dec 18 11:23:34 ci-overcloud-controller0-oxzkjphwfyw3 neutron-l3-agent: 2014-12-18 11:23:34.611 18015 TRACE neutron.agent.l3_agent Command: ['sudo', '/usr/bin/neutron-rootwrap', '/etc/neutron/rootwrap.conf', 'ip', 'netns', 'exec', 'qrouter-6066faaa-0e35-4e7b-8988-7337c493bad7', 'radvd', '-C', '/var/run/neutron/ra/6066faaa-0e35-4e7b-8988-7337c493bad7.radvd.conf', '-p', '/var/run/neutron/external/pids/6066faaa-0e35-4e7b-8988-7337c493bad7.pid.radvd']
  Dec 18 11:23:34 ci-overcloud-controller0-oxzkjphwfyw3 neutron-l3-agent: 2014-12-18 11:23:34.611 18015 TRACE neutron.agent.l3_agent Exit code: 99
  Dec 18 11:23:34 ci-overcloud-controller0-oxzkjphwfyw3 neutron-l3-agent: 2014-12-18 11:23:34.611 18015 TRACE neutron.agent.l3_agent Stdout: ''
  Dec 18 11:23:34 ci-overcloud-controller0-oxzkjphwfyw3 neutron-l3-agent: 2014-12-18 11:23:34.611 18015 TRACE neutron.agent.l3_agent Stderr: '/usr/bin/neutron-rootwrap: Unauthorized command: ip netns exec qrouter-6066faaa-0e35-4e7b-8988-7337c493bad7 radvd -C /var/run/neutron/ra/6066faaa-0e35-4e7b-8988-7337c493bad7.radvd.conf -p /var/run/neutron/external/pids/6066faaa-0e35-4e7b-8988-7337c493bad7.pid.radvd (no filter matched)\n' 

  
  a cut of l3 filters:

  [Filters]

  # arping
  arping: CommandFilter, arping, root

  # l3_agent
  sysctl: CommandFilter, sysctl, root
  route: CommandFilter, route, root
  radvd: CommandFilter, radvd, root

  # metadata proxy
  metadata_proxy: CommandFilter, neutron-ns-metadata-proxy, root
  # If installed from source (say, by devstack), the prefix will be
  # /usr/local instead of /usr/bin.
  metadata_proxy_local: CommandFilter, /usr/local/bin/neutron-ns-metadata-proxy, root
  # RHEL invocation of the metadata proxy will report /opt/stack/venvs/openstack/bin/python
  kill_metadata: KillFilter, root, python, -9
  kill_metadata7: KillFilter, root, python2.7, -9
  kill_radvd_usr: KillFilter, root, /usr/sbin/radvd, -9, -HUP
  kill_radvd: KillFilter, root, /sbin/radvd, -9, -HUP

  # ip_lib
  ip: IpFilter, ip, root
  ip_exec: IpNetnsExecFilter, ip, root

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References