| 2013-04-25 16:42:52 |
Andres Rodriguez |
description |
[Impact]
MAAS fails to start/stop virtual nodes when using virsh. This is because MAAS lacks permissions to run virsh.
[Solution]
The solution is to run virsh with sudo, as well as allowing the 'maas' user to run 'virsh' in the sudoers file.
[Test Case]
To reproduce do the following:
1. install MAAS and configure local KVM nodes with it.
2. Confiugure the power pameters in MAAS.
3. Deploy a node.
Without the fix the node will be never turned on/off and /var/log/maas/maas.log will show:
[2013-04-23 11:20:21,482: ERROR/MainProcess] Task provisioningserver.tasks.power_off[926784f3-d90d-4277-bbfc-0471b2c82e80] raised exception: UnpickleableExceptionWrapper('provisioningserver.power.poweraction', 'PowerActionFail', (), 'PowerActionFail()')
Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/celery/execute/trace.py", line 181, in trace_task
R = retval = fun(*args, **kwargs)
File "/usr/lib/python2.7/dist-packages/provisioningserver/tasks.py", line 146, in power_off
issue_power_action(power_type, 'off', **kwargs)
File "/usr/lib/python2.7/dist-packages/provisioningserver/tasks.py", line 126, in issue_power_action
pa.execute(**kwargs)
File "/usr/lib/python2.7/dist-packages/provisioningserver/power/poweraction.py", line 138, in execute
self.run_shell(rendered)
File "/usr/lib/python2.7/dist-packages/provisioningserver/power/poweraction.py", line 126, in run_shell
raise PowerActionFail(self, e)
PowerActionFail: PowerActionFail()
With the fix, nodes will be turned on/off successfully. |
[Impact]
MAAS fails to start/stop virtual nodes when using virsh. This is because MAAS lacks permissions to run virsh.
[Solution]
The solution is to run virsh with sudo, as well as allowing the 'maas' user to run 'virsh' in the sudoers file.
[Test Case]
To reproduce do the following:
1. install MAAS and configure local KVM nodes with it.
2. Confiugure the power pameters in MAAS.
3. Deploy a node.
Without the fix the node will be never turned on/off and /var/log/maas/maas.log will show:
[Regression Potential]
Minimal. This has been tested in our labs. And this actually fixes something that is currently broken and won't work out of the box. The MAAS team and Server team are dedicated to perform any corrective actions in the events of a regression.
[2013-04-23 11:20:21,482: ERROR/MainProcess] Task provisioningserver.tasks.power_off[926784f3-d90d-4277-bbfc-0471b2c82e80] raised exception: UnpickleableExceptionWrapper('provisioningserver.power.poweraction', 'PowerActionFail', (), 'PowerActionFail()')
Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/celery/execute/trace.py", line 181, in trace_task
R = retval = fun(*args, **kwargs)
File "/usr/lib/python2.7/dist-packages/provisioningserver/tasks.py", line 146, in power_off
issue_power_action(power_type, 'off', **kwargs)
File "/usr/lib/python2.7/dist-packages/provisioningserver/tasks.py", line 126, in issue_power_action
pa.execute(**kwargs)
File "/usr/lib/python2.7/dist-packages/provisioningserver/power/poweraction.py", line 138, in execute
self.run_shell(rendered)
File "/usr/lib/python2.7/dist-packages/provisioningserver/power/poweraction.py", line 126, in run_shell
raise PowerActionFail(self, e)
PowerActionFail: PowerActionFail()
With the fix, nodes will be turned on/off successfully. |
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