Description of problem:
After updating to lates release (z5) glance commands exit with this error:
 "Internal Server Error"
in glance log on controller-2 we found this error:
2018-05-22 11:47:05.580 747087 ERROR glance.common.wsgi [req-0c73043f-94eb-49fa-90c8-9b2005723365 8c3cbf366ef54c40b292de07f1aa161d 5e62927ce5b14e7b9cc5a80ad2e25d49 - default default] Caught error: 'location_order'
2018-05-22 11:47:05.580 747087 ERROR glance.common.wsgi Traceback (most recent call last):
2018-05-22 11:47:05.580 747087 ERROR glance.common.wsgi   File "/usr/lib/python2.7/site-packages/glance/common/wsgi.py", line 1116, in __call__
2018-05-22 11:47:05.580 747087 ERROR glance.common.wsgi     request, **action_args)
2018-05-22 11:47:05.580 747087 ERROR glance.common.wsgi   File "/usr/lib/python2.7/site-packages/glance/common/wsgi.py", line 1155, in dispatch
2018-05-22 11:47:05.580 747087 ERROR glance.common.wsgi     return method(*args, **kwargs)
2018-05-22 11:47:05.580 747087 ERROR glance.common.wsgi   File "/usr/lib/python2.7/site-packages/glance/api/v2/images.py", line 111, in index
2018-05-22 11:47:05.580 747087 ERROR glance.common.wsgi     member_status=member_status)
2018-05-22 11:47:05.580 747087 ERROR glance.common.wsgi   File "/usr/lib/python2.7/site-packages/glance/api/authorization.py", line 111, in list
2018-05-22 11:47:05.580 747087 ERROR glance.common.wsgi     images = self.image_repo.list(*args, **kwargs)
2018-05-22 11:47:05.580 747087 ERROR glance.common.wsgi   File "/usr/lib/python2.7/site-packages/glance/domain/proxy.py", line 89, in list
2018-05-22 11:47:05.580 747087 ERROR glance.common.wsgi     items = self.base.list(*args, **kwargs)
2018-05-22 11:47:05.580 747087 ERROR glance.common.wsgi   File "/usr/lib/python2.7/site-packages/glance/api/policy.py", line 114, in list
2018-05-22 11:47:05.580 747087 ERROR glance.common.wsgi     return super(ImageRepoProxy, self).list(*args, **kwargs)
2018-05-22 11:47:05.580 747087 ERROR glance.common.wsgi   File "/usr/lib/python2.7/site-packages/glance/domain/proxy.py", line 89, in list
2018-05-22 11:47:05.580 747087 ERROR glance.common.wsgi     items = self.base.list(*args, **kwargs)
2018-05-22 11:47:05.580 747087 ERROR glance.common.wsgi   File "/usr/lib/python2.7/site-packages/glance/domain/proxy.py", line 89, in list
2018-05-22 11:47:05.580 747087 ERROR glance.common.wsgi     items = self.base.list(*args, **kwargs)
2018-05-22 11:47:05.580 747087 ERROR glance.common.wsgi   File "/usr/lib/python2.7/site-packages/glance/domain/proxy.py", line 89, in list
2018-05-22 11:47:05.580 747087 ERROR glance.common.wsgi     items = self.base.list(*args, **kwargs)
2018-05-22 11:47:05.580 747087 ERROR glance.common.wsgi   File "/usr/lib/python2.7/site-packages/glance/db/__init__.py", line 184, in list
2018-05-22 11:47:05.580 747087 ERROR glance.common.wsgi     image = self._format_image_from_db(db_image, db_image['tags'])
2018-05-22 11:47:05.580 747087 ERROR glance.common.wsgi   File "/usr/lib/python2.7/site-packages/glance/db/__init__.py", line 210, in _format_image_from_db
2018-05-22 11:47:05.580 747087 ERROR glance.common.wsgi     locations=location_strategy.get_ordered_locations(locations),
2018-05-22 11:47:05.580 747087 ERROR glance.common.wsgi   File "/usr/lib/python2.7/site-packages/glance/common/location_strategy/__init__.py", line 117, in get_ordered_locations
2018-05-22 11:47:05.580 747087 ERROR glance.common.wsgi     strategy_module = _available_strategies[CONF.location_strategy]
2018-05-22 11:47:05.580 747087 ERROR glance.common.wsgi KeyError: 'location_order'
2018-05-22 11:47:05.580 747087 ERROR glance.common.wsgi 


Version-Release number of selected component (if applicable):

python-glance-14.0.1-1.el7ost.noarch
python-glanceclient-2.6.0-1.el7ost.noarch
openstack-glance-14.0.1-1.el7ost.noarch
python-glance-store-0.20.0-1.el7ost.noarch
puppet-glance-10.4.0-1.el7ost.noarch

How reproducible:


Steps to Reproduce:
1. install z4 cloud
2. update cloud to z5
3. try to list or load image

Actual results:

see attached file.
Expected results:


Additional info: