keystone.log's permission is not right

[jackning]

At present, keystone.log's user:group permit is root:kolla,
when got token from keystone, it failed. The reason is that:
Permission denied. So it shoud be changed keystone:keystone.

keystone-apache-public-error.log's detail log message:

......
2016-10-08 22:19:20.190126 File "/var/lib/kolla/venv/lib/python2.7/site-packages/keystone/server/common.py", line 39, in configure
2016-10-08 22:19:20.190165 config.setup_logging()
2016-10-08 22:19:20.190172 File "/var/lib/kolla/venv/lib/python2.7/site-packages/keystone/common/config.py", line 1141, in setup_logging
2016-10-08 22:19:20.190410 log.setup(CONF, 'keystone')
2016-10-08 22:19:20.190419 File "/var/lib/kolla/venv/lib/python2.7/site-packages/oslo_log/log.py", line 243, in setup
2016-10-08 22:19:20.190498 _setup_logging_from_conf(conf, product_name, version)
2016-10-08 22:19:20.190505 File "/var/lib/kolla/venv/lib/python2.7/site-packages/oslo_log/log.py", line 319, in _setup_logging_from_conf
2016-10-08 22:19:20.190519 filelog = file_handler(logpath)
2016-10-08 22:19:20.190527 File "/usr/lib64/python2.7/logging/handlers.py", line 392, in __init__
2016-10-08 22:19:20.190717 logging.FileHandler.__init__(self, filename, mode, encoding, delay)
2016-10-08 22:19:20.190726 File "/usr/lib64/python2.7/logging/__init__.py", line 902, in __init__
2016-10-08 22:19:20.190976 StreamHandler.__init__(self, self._open())
2016-10-08 22:19:20.190987 File "/usr/lib64/python2.7/logging/__init__.py", line 925, in _open
2016-10-08 22:19:20.190999 stream = open(self.baseFilename, self.mode)
2016-10-08 22:19:20.191023 IOError: [Errno 13] Permission denied: '/var/log/kolla/keystone/keystone.log'

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/384146

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/384146
Committed: https://git.openstack.org/cgit/openstack/kolla/commit/?id=cebed25608f07f11058a31d2f1a2d94e2142e59f
Submitter: Jenkins
Branch: master

commit cebed25608f07f11058a31d2f1a2d94e2142e59f
Author: jackning <email address hidden>
Date: Sat Oct 8 22:49:57 2016 -0400

    Change keystone.log's permit to keystone:keystone

    At present, keystone.log's user:group permit is root:kolla,
    when got token from keystone, it failed. The reason is that:
    Permission denied. So it shoud be changed keystone:keystone.

    Change-Id: Ibbbf1d88ba16e5040f9068ea9948373d10593514
    Closes-Bug: #1631685

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/kolla 4.0.0.0b1 development milestone.