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[Bug 1328524] [NEW] to determine ovs version are not using rootwrap

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Martins Jakubovics <martins@xxxxxxxxxx>
Date: Tue, 10 Jun 2014 13:07:21 -0000
Reply-to: Bug 1328524 <1328524@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
Public bug reported:

Hello,

Looks like if using neutron in xenserver (neutron-plugin-openvswitch-
agent in domU) than ovs and kernel version check occurs in domU without
rootwrap, so it check domU version but should XenServer.

2014-06-10 15:39:29.508 7264 DEBUG neutron.agent.linux.utils [req-4ab67729-a51e-451c-a0ef-99cec515202f None] Running command: ['modinfo', 'openvswitch'] create_process /usr/lib/python2.7/dist-packages/neutron/agent/linux/utils.py:48
2014-06-10 15:39:29.547 7264 DEBUG neutron.agent.linux.utils [req-4ab67729-a51e-451c-a0ef-99cec515202f None] 
Command: ['modinfo', 'openvswitch']
Exit code: 0
Stdout: 'filename:       /lib/modules/3.5.0-51-generic/kernel/net/openvswitch/openvswitch.ko\nlicense:        GPL\ndescription:    Open vSwitch switching datapath\nsrcversion:     9A8076958DCAC4F3F34CCA7\ndepends:        \nintree:         Y\nvermagic:       3.5.0-51-generic SMP mod_unload modversions \n'
Stderr: '' execute /usr/lib/python2.7/dist-packages/neutron/agent/linux/utils.py:74
2014-06-10 15:39:29.550 7264 DEBUG neutron.agent.linux.utils [req-4ab67729-a51e-451c-a0ef-99cec515202f None] Running command: ['uname', '-r'] create_process /usr/lib/python2.7/dist-packages/neutron/agent/linux/utils.py:48
2014-06-10 15:39:29.588 7264 DEBUG neutron.agent.linux.utils [req-4ab67729-a51e-451c-a0ef-99cec515202f None] 
Command: ['uname', '-r']
Exit code: 0
Stdout: '3.5.0-51-generic\n'
Stderr: '' execute /usr/lib/python2.7/dist-packages/neutron/agent/linux/utils.py:74
2014-06-10 15:39:29.592 7264 DEBUG neutron.agent.linux.utils [req-4ab67729-a51e-451c-a0ef-99cec515202f None] Running command: ['/usr/bin/neutron-rootwrap-xen-dom0', '/etc/neutron/rootwrap.conf', 'ovs-vsctl', '--version'] create_process /usr/lib/python2.7/dist-packages/neutron/agent/linux/utils.py:48
2014-06-10 15:39:29.935 7264 DEBUG neutron.agent.linux.utils [req-4ab67729-a51e-451c-a0ef-99cec515202f None] 
Command: ['/usr/bin/neutron-rootwrap-xen-dom0', '/etc/neutron/rootwrap.conf', 'ovs-vsctl', '--version']
Exit code: 0
Stdout: 'ovs-vsctl (Open vSwitch) 2.1.2\nCompiled Jun 10 2014 08:16:42\n\n'
Stderr: '' execute /usr/lib/python2.7/dist-packages/neutron/agent/linux/utils.py:74
2014-06-10 15:39:29.940 7264 DEBUG neutron.agent.linux.ovs_lib [req-4ab67729-a51e-451c-a0ef-99cec515202f None] Checking OVS version for VXLAN support installed klm version is None, installed Linux version is 3.5.0, installed user version is 2.1  check_ovs_vxlan_version /usr/lib/python2.7/dist-packages/neutron/agent/linux/ovs_lib.py:542
2014-06-10 15:39:29.941 7264 ERROR neutron.plugins.openvswitch.agent.ovs_neutron_agent [req-4ab67729-a51e-451c-a0ef-99cec515202f None] Agent terminated
2014-06-10 15:39:29.941 7264 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent Traceback (most recent call last):
2014-06-10 15:39:29.941 7264 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent   File "/usr/lib/python2.7/dist-packages/neutron/plugins/openvswitch/agent/ovs_neutron_agent.py", line 232, in _check_ovs_version
2014-06-10 15:39:29.941 7264 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent     ovs_lib.check_ovs_vxlan_version(self.root_helper)
2014-06-10 15:39:29.941 7264 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent   File "/usr/lib/python2.7/dist-packages/neutron/agent/linux/ovs_lib.py", line 551, in check_ovs_vxlan_version
2014-06-10 15:39:29.941 7264 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent     'kernel', 'VXLAN')
2014-06-10 15:39:29.941 7264 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent   File "/usr/lib/python2.7/dist-packages/neutron/agent/linux/ovs_lib.py", line 529, in _compare_installed_and_required_version
2014-06-10 15:39:29.941 7264 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent     raise SystemError(msg)
2014-06-10 15:39:29.941 7264 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent SystemError: Unable to determine kernel version for Open vSwitch with VXLAN support. To use VXLAN tunnels with OVS, please ensure that the version is 1.10 or newer!

** Affects: neutron
     Importance: Undecided
         Status: New


** Tags: rootwrap

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https://bugs.launchpad.net/bugs/1328524

Title:
  to determine ovs version are not using rootwrap

Status in OpenStack Neutron (virtual network service):
  New

Bug description:
  Hello,

  Looks like if using neutron in xenserver (neutron-plugin-openvswitch-
  agent in domU) than ovs and kernel version check occurs in domU
  without rootwrap, so it check domU version but should XenServer.

  2014-06-10 15:39:29.508 7264 DEBUG neutron.agent.linux.utils [req-4ab67729-a51e-451c-a0ef-99cec515202f None] Running command: ['modinfo', 'openvswitch'] create_process /usr/lib/python2.7/dist-packages/neutron/agent/linux/utils.py:48
  2014-06-10 15:39:29.547 7264 DEBUG neutron.agent.linux.utils [req-4ab67729-a51e-451c-a0ef-99cec515202f None] 
  Command: ['modinfo', 'openvswitch']
  Exit code: 0
  Stdout: 'filename:       /lib/modules/3.5.0-51-generic/kernel/net/openvswitch/openvswitch.ko\nlicense:        GPL\ndescription:    Open vSwitch switching datapath\nsrcversion:     9A8076958DCAC4F3F34CCA7\ndepends:        \nintree:         Y\nvermagic:       3.5.0-51-generic SMP mod_unload modversions \n'
  Stderr: '' execute /usr/lib/python2.7/dist-packages/neutron/agent/linux/utils.py:74
  2014-06-10 15:39:29.550 7264 DEBUG neutron.agent.linux.utils [req-4ab67729-a51e-451c-a0ef-99cec515202f None] Running command: ['uname', '-r'] create_process /usr/lib/python2.7/dist-packages/neutron/agent/linux/utils.py:48
  2014-06-10 15:39:29.588 7264 DEBUG neutron.agent.linux.utils [req-4ab67729-a51e-451c-a0ef-99cec515202f None] 
  Command: ['uname', '-r']
  Exit code: 0
  Stdout: '3.5.0-51-generic\n'
  Stderr: '' execute /usr/lib/python2.7/dist-packages/neutron/agent/linux/utils.py:74
  2014-06-10 15:39:29.592 7264 DEBUG neutron.agent.linux.utils [req-4ab67729-a51e-451c-a0ef-99cec515202f None] Running command: ['/usr/bin/neutron-rootwrap-xen-dom0', '/etc/neutron/rootwrap.conf', 'ovs-vsctl', '--version'] create_process /usr/lib/python2.7/dist-packages/neutron/agent/linux/utils.py:48
  2014-06-10 15:39:29.935 7264 DEBUG neutron.agent.linux.utils [req-4ab67729-a51e-451c-a0ef-99cec515202f None] 
  Command: ['/usr/bin/neutron-rootwrap-xen-dom0', '/etc/neutron/rootwrap.conf', 'ovs-vsctl', '--version']
  Exit code: 0
  Stdout: 'ovs-vsctl (Open vSwitch) 2.1.2\nCompiled Jun 10 2014 08:16:42\n\n'
  Stderr: '' execute /usr/lib/python2.7/dist-packages/neutron/agent/linux/utils.py:74
  2014-06-10 15:39:29.940 7264 DEBUG neutron.agent.linux.ovs_lib [req-4ab67729-a51e-451c-a0ef-99cec515202f None] Checking OVS version for VXLAN support installed klm version is None, installed Linux version is 3.5.0, installed user version is 2.1  check_ovs_vxlan_version /usr/lib/python2.7/dist-packages/neutron/agent/linux/ovs_lib.py:542
  2014-06-10 15:39:29.941 7264 ERROR neutron.plugins.openvswitch.agent.ovs_neutron_agent [req-4ab67729-a51e-451c-a0ef-99cec515202f None] Agent terminated
  2014-06-10 15:39:29.941 7264 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent Traceback (most recent call last):
  2014-06-10 15:39:29.941 7264 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent   File "/usr/lib/python2.7/dist-packages/neutron/plugins/openvswitch/agent/ovs_neutron_agent.py", line 232, in _check_ovs_version
  2014-06-10 15:39:29.941 7264 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent     ovs_lib.check_ovs_vxlan_version(self.root_helper)
  2014-06-10 15:39:29.941 7264 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent   File "/usr/lib/python2.7/dist-packages/neutron/agent/linux/ovs_lib.py", line 551, in check_ovs_vxlan_version
  2014-06-10 15:39:29.941 7264 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent     'kernel', 'VXLAN')
  2014-06-10 15:39:29.941 7264 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent   File "/usr/lib/python2.7/dist-packages/neutron/agent/linux/ovs_lib.py", line 529, in _compare_installed_and_required_version
  2014-06-10 15:39:29.941 7264 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent     raise SystemError(msg)
  2014-06-10 15:39:29.941 7264 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent SystemError: Unable to determine kernel version for Open vSwitch with VXLAN support. To use VXLAN tunnels with OVS, please ensure that the version is 1.10 or newer!

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Follow ups

[Bug 1328524] Re: to determine ovs version are not using rootwrap
From: Launchpad Bug Tracker, 2015-12-07
[Bug 1328524] [NEW] to determine ovs version are not using rootwrap
From: Martins Jakubovics, 2014-06-10
References

[Bug 1328524] [NEW] to determine ovs version are not using rootwrap
From: Martins Jakubovics, 2014-06-10