rootwrap default config has uppercase sections

[Mate Lakat]

If you are using devstack to deploy neutron, agent will fail to start:

2013-06-28 15:26:53.004 29285 DEBUG quantum.agent.linux.utils [-]
Command: ['/opt/stack/quantum/bin/quantum-rootwrap-xen-dom0', '/etc/quantum/rootwrap.conf', 'ip', '-o', 'link', 'show', 'xapi1']
Exit code: 96
Stdout: ''
Stderr: 'Traceback (most recent call last):\n File "/opt/stack/quantum/bin/quantum-rootwrap-xen-dom0", line 102, in run_command\n session = XenAPI.Session(url)\n File "/usr/local/lib/python2.7/dist-packages/XenAPI.py", line 114, in __init__\n verbose, allow_none)\n File "/usr/lib/python2.7/xmlrpclib.py", line 1549, in __init__\n raise IOError, "unsupported XML-RPC protocol"\nIOError: unsupported XML-RPC protocol\n' execute /opt/stack/quantum/quantum/agent/linux/utils.py:59
2013-06-28 15:26:53.005 29285 ERROR quantum.plugins.openvswitch.agent.ovs_quantum_agent [-] Bridge xapi1 for physical network physnet1 does not exist. Agent terminated!

Trying to run the rootwrap command:

stack@DevStackOSDomU:~/quantum$ /opt/stack/quantum/bin/quantum-rootwrap-xen-dom0 /etc/quantum/rootwrap.conf ip -o link show xapi1
Traceback (most recent call last):
  File "/opt/stack/quantum/bin/quantum-rootwrap-xen-dom0", line 102, in run_command
    session = XenAPI.Session(url)
  File "/usr/local/lib/python2.7/dist-packages/XenAPI.py", line 114, in __init__
    verbose, allow_none)
  File "/usr/lib/python2.7/xmlrpclib.py", line 1549, in __init__
    raise IOError, "unsupported XML-RPC protocol"
IOError: unsupported XML-RPC protocol

Looking at the rootwrap config file, the problem becomes obvious:

$ cat /etc/quantum/rootwrap.conf
[DEFAULT]
# List of directories to load filter definitions from (separated by ',').
# These directories MUST all be only writeable by root !
filters_path=/etc/quantum/rootwrap.d

# List of directories to search executables in, in case filters do not
# explicitely specify a full path (separated by ',')
# If not specified, defaults to system PATH environment variable.
# These directories MUST all be only writeable by root !
exec_dirs=/sbin,/usr/sbin,/bin,/usr/bin

[XENAPI]
# XenAPI configuration is only required by the L2 agent if it is to
# target a XenServer/XCP compute host's dom0.
xenapi_connection_url=<None>
xenapi_connection_username=root
xenapi_connection_password=<None>

[xenapi]
xenapi_connection_password = stg
xenapi_connection_username = root

And the rootwrap is searching for the config with capital letters.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/34902
Committed: http://github.com/openstack/quantum/commit/8d0f8e1b992f41a3914030ed75d77bbecde5f924
Submitter: Jenkins
Branch: master

commit 8d0f8e1b992f41a3914030ed75d77bbecde5f924
Author: Mate Lakat <email address hidden>
Date: Fri Jun 28 16:22:04 2013 +0100

    dom0 rootwrap - case insensitive xenapi section

    As per change https://review.openstack.org/33429 the config sections
    became lowercase. This patch makes the quantum-rootwrap-xen-dom0
    rootwrap to be case insensitive for the xenapi section.

    This patch also changes the default config file to use a lowercase
    xenapi section.

    Fixes bug 1195781

    Change-Id: Ic24feb1a9ad6f8823745b1febd4a0edd54e73498