** Changed in: neutron
Status: Confirmed => Invalid
** Also affects: fuel
Importance: Undecided
Status: New
** Also affects: fuel/4.1.x
Importance: Undecided
Status: New
** Also affects: fuel/5.0.x
Importance: Undecided
Status: New
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Engineering Team, which is subscribed to neutron.
https://bugs.launchpad.net/bugs/1311804
Title:
ip netns list starts without root_helper
Status in Fuel: OpenStack installer that works:
New
Status in Fuel for OpenStack 4.1.x series:
New
Status in Fuel for OpenStack 5.0.x series:
New
Status in OpenStack Neutron (virtual network service):
Invalid
Bug description:
CENTOS 6.5
Reproduced on typical Openstack installation in any segmentation type with
one L3-agent.
In ip_lib in IpNetnsComand losted root_helper.
Without it L3 agent can't create interfaces inside network namespace, because
in Centos 'ip netns list' returns empty list if start without root privileges.
[root@node-2 ~]# uname -a
Linux node-2.domain.tld 2.6.32-431.11.2.el6.x86_64 #1 SMP Tue Mar 25 19:59:55
UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
[root@node-2 ~]# ip netns list
haproxy
qrouter-b582586e-70e3-4a38-8b19-039f30ce87a9
[root@node-2 ~]# su -m neutron -c 'ip netns list'
[root@node-2 ~]#
in the log below exception happens because namespace already exists
(see full log in attach), but can't detected by ip netns list without
root_wrapper.
2014-04-23 16:15:44.760 28240 DEBUG neutron.agent.linux.utils
[req-d0f812f6-d987-45f5-9cff-11f1fa52fed6 None] Running command: ['ip', '-o',
'netns', 'list'] create_process /
usr/lib/python2.6/site-packages/neutron/agent/linux/utils.py:48
2014-04-23 16:15:44.781 28240 DEBUG neutron.agent.linux.utils
[req-d0f812f6-d987-45f5-9cff-11f1fa52fed6 None]
Command: ['ip', '-o', 'netns', 'list']
Exit code: 0
Stdout: ''
Stderr: '' execute
/usr/lib/python2.6/site-packages/neutron/agent/linux/utils.py:74
2014-04-23 16:15:44.782 28240 DEBUG neutron.agent.linux.utils
[req-d0f812f6-d987-45f5-9cff-11f1fa52fed6 None] Running command: ['sudo',
'neutron-rootwrap', '/etc/neutron/roo
twrap.conf', 'ip', 'netns', 'add',
'qrouter-b582586e-70e3-4a38-8b19-039f30ce87a9'] create_process
/usr/lib/python2.6/site-packages/neutron/agent/linux/utils.py:48
2014-04-23 16:15:44.864 28240 DEBUG neutron.agent.linux.utils
[req-d0f812f6-d987-45f5-9cff-11f1fa52fed6 None]
Command: ['sudo', 'neutron-rootwrap', '/etc/neutron/rootwrap.conf', 'ip',
'netns', 'add', 'qrouter-b582586e-70e3-4a38-8b19-039f30ce87a9']
Exit code: 255
Stdout: ''
Stderr: 'Could not create
/var/run/netns/qrouter-b582586e-70e3-4a38-8b19-039f30ce87a9: File exists\n'
execute /usr/lib/python2.6/site-packages/neutron/agent/linux/utils.py:7
4
Traceback (most recent call last):
File "/usr/lib/python2.6/site-packages/eventlet/greenpool.py", line 80, in
_spawn_n_impl
func(*args, **kwargs)
File "/usr/lib/python2.6/site-packages/neutron/agent/l3_agent.py", line
438, in process_router
p['ip_cidr'], p['mac_address'])
File "/usr/lib/python2.6/site-packages/neutron/agent/l3_agent.py", line
707, in internal_network_added
prefix=INTERNAL_DEV_PREFIX)
File "/usr/lib/python2.6/site-packages/neutron/agent/linux/interface.py",
line 195, in plug
namespace_obj = ip.ensure_namespace(namespace)
File "/usr/lib/python2.6/site-packages/neutron/agent/linux/ip_lib.py", line
136, in ensure_namespace
ip = self.netns.add(name)
File "/usr/lib/python2.6/site-packages/neutron/agent/linux/ip_lib.py", line
446, in add
self._as_root('add', name, use_root_namespace=True)
File "/usr/lib/python2.6/site-packages/neutron/agent/linux/ip_lib.py", line
217, in _as_root
kwargs.get('use_root_namespace', False))
File "/usr/lib/python2.6/site-packages/neutron/agent/linux/ip_lib.py", line
70, in _as_root
namespace)
File "/usr/lib/python2.6/site-packages/neutron/agent/linux/ip_lib.py", line
81, in _execute
root_helper=root_helper)
File "/usr/lib/python2.6/site-packages/neutron/agent/linux/utils.py", line
76, in execute
raise RuntimeError(m)
RuntimeError:
Command: ['sudo', 'neutron-rootwrap', '/etc/neutron/rootwrap.conf', 'ip',
'netns', 'add', 'qrouter-b582586e-70e3-4a38-8b19-039f30ce87a9']
Exit code: 255
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