devstack fails to create lbaas vip on fedora

[Rabi Mishra]

Recent change in lbaas breaks lbaas(haproxy) on fedora with devstack.

'neutron/services/loadbalancer/drivers/haproxy/namespace_driver.py ' gets 'usergroup' from the 'haproxy' section of 'lbaas_agent.ini'

user_group = self.conf.haproxy.user_group

Error Log while adding VIP to a Pool.
-------------------------------------
2014-02-21 19:50:58.147 46029 TRACE neutron.services.loadbalancer.agent.agent_manager Traceback (most recent call last):
2014-02-21 19:50:58.147 46029 TRACE neutron.services.loadbalancer.agent.agent_manager File "/opt/stack/neutron/neutron/services/loadbalancer/agent/agent_manager.py", line 219, in create_vip
2014-02-21 19:50:58.147 46029 TRACE neutron.services.loadbalancer.agent.agent_manager driver.create_vip(vip)
2014-02-21 19:50:58.147 46029 TRACE neutron.services.loadbalancer.agent.agent_manager File "/opt/stack/neutron/neutron/services/loadbalancer/drivers/haproxy/namespace_driver.py", line 284, in create_vip
2014-02-21 19:50:58.147 46029 TRACE neutron.services.loadbalancer.agent.agent_manager self._refresh_device(vip['pool_id'])
2014-02-21 19:50:58.147 46029 TRACE neutron.services.loadbalancer.agent.agent_manager File "/opt/stack/neutron/neutron/services/loadbalancer/drivers/haproxy/namespace_driver.py", line 281, in _refresh_device
2014-02-21 19:50:58.147 46029 TRACE neutron.services.loadbalancer.agent.agent_manager self.deploy_instance(logical_config)
2014-02-21 19:50:58.147 46029 TRACE neutron.services.loadbalancer.agent.agent_manager File "/opt/stack/neutron/neutron/openstack/common/lockutils.py", line 249, in inner
2014-02-21 19:50:58.147 46029 TRACE neutron.services.loadbalancer.agent.agent_manager return f(*args, **kwargs)
2014-02-21 19:50:58.147 46029 TRACE neutron.services.loadbalancer.agent.agent_manager File "/opt/stack/neutron/neutron/services/loadbalancer/drivers/haproxy/namespace_driver.py", line 277, in deploy_instance
2014-02-21 19:50:58.147 46029 TRACE neutron.services.loadbalancer.agent.agent_manager self.create(logical_config)
2014-02-21 19:50:58.147 46029 TRACE neutron.services.loadbalancer.agent.agent_manager File "/opt/stack/neutron/neutron/services/loadbalancer/drivers/haproxy/namespace_driver.py", line 87, in create
2014-02-21 19:50:58.147 46029 TRACE neutron.services.loadbalancer.agent.agent_manager self._spawn(logical_config)
2014-02-21 19:50:58.147 46029 TRACE neutron.services.loadbalancer.agent.agent_manager File "/opt/stack/neutron/neutron/services/loadbalancer/drivers/haproxy/namespace_driver.py", line 110, in _spawn
2014-02-21 19:50:58.147 46029 TRACE neutron.services.loadbalancer.agent.agent_manager ns.netns.execute(cmd)
2014-02-21 19:50:58.147 46029 TRACE neutron.services.loadbalancer.agent.agent_manager File "/opt/stack/neutron/neutron/agent/linux/ip_lib.py", line 467, in execute
2014-02-21 19:50:58.147 46029 TRACE neutron.services.loadbalancer.agent.agent_manager check_exit_code=check_exit_code)
2014-02-21 19:50:58.147 46029 TRACE neutron.services.loadbalancer.agent.agent_manager File "/opt/stack/neutron/neutron/agent/linux/utils.py", line 76, in execute
2014-02-21 19:50:58.147 46029 TRACE neutron.services.loadbalancer.agent.agent_manager raise RuntimeError(m)
2014-02-21 19:50:58.147 46029 TRACE neutron.services.loadbalancer.agent.agent_manager RuntimeError:
2014-02-21 19:50:58.147 46029 TRACE neutron.services.loadbalancer.agent.agent_manager Command: ['sudo', '/usr/bin/neutron-rootwrap', '/etc/neutron/rootwrap.conf', 'ip', 'netns', 'exec', 'qlbaas-d188a907-9182-4c11-91cb-7087456093d0', 'haproxy', '-f', '/opt/stack/data/neutron/lbaas/d188a907-9182-4c11-91cb-7087456093d0/conf', '-p', '/opt/stack/data/neutron/lbaas/d188a907-9182-4c11-91cb-7087456093d0/pid']
2014-02-21 19:50:58.147 46029 TRACE neutron.services.loadbalancer.agent.agent_manager Exit code: 1
2014-02-21 19:50:58.147 46029 TRACE neutron.services.loadbalancer.agent.agent_manager Stdout: ''
2014-02-21 19:50:58.147 46029 TRACE neutron.services.loadbalancer.agent.agent_manager Stderr: "[ALERT] 051/195058 (46121) : parsing [/opt/stack/data/neutron/lbaas/d188a907-9182-4c11-91cb-7087456093d0/conf:4] : cannot find group id for 'nogroup' (0:Success)\n[ALERT] 051/195058 (46121) : Error(s) found in configuration file : /opt/stack/data/neutron/lbaas/d188a907-9182-4c11-91cb-7087456093d0/conf\n[ALERT] 051/195058 (46121) : Fatal errors found in configuration.\n"

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/75433

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/75433
Committed: https://git.openstack.org/cgit/openstack-dev/devstack/commit/?id=f2ca87a8d8ded80384b2cafb46ef2ca4cf19a986
Submitter: Jenkins
Branch: master

commit f2ca87a8d8ded80384b2cafb46ef2ca4cf19a986
Author: Rabi Mishra <email address hidden>
Date: Fri Feb 21 20:08:28 2014 +0530

    Implements fix to run lbaas service on fedora with devstack

    changes 'user_group = nobody' in 'haproxy' section of lbaas_agent.ini

    Change-Id: I801fec5a11d8abd97cb6f5cdff35fabb9eaf9000
    Closes-Bug: 1283064