Any request to the nova.api service at 8774 results in a error in "/var/log/nova/nova-api.log". A simple get request, GET /v2.1/os-hypervisors/detail HTTP/1.1 Host: host.domain.com User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:54.0) Gecko/20100101 Firefox/54.0 X-Auth-Token: XXXXXXXXXXXX Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Content-Type: application/json Content-Length: 0 DNT: 1 Connection: close Upgrade-Insecure-Requests: 1 Results in and error logged to "/var/log/nova/nova-api.log WARNING keystoneauth.identity.generic.base [-] Discovering versions from the identity service failed when creating the password plugin. Attempting to determine version from URL. ERROR nova.api.openstack [-] Caught error: Could not determine a suitable URL for the plugin ERROR nova.api.openstack Traceback (most recent call last): ERROR nova.api.openstack File "/usr/lib/python2.7/site-packages/nova/api/openstack/__init__.py", line 88, in __call__ ERROR nova.api.openstack return req.get_response(self.application) ERROR nova.api.openstack File "/usr/lib/python2.7/site-packages/webob/request.py", line 1299, in send ERROR nova.api.openstack application, catch_exc_info=False) ERROR nova.api.openstack File "/usr/lib/python2.7/site-packages/webob/request.py", line 1263, in call_application ERROR nova.api.openstack app_iter = application(self.environ, start_response) ERROR nova.api.openstack File "/usr/lib/python2.7/site-packages/webob/dec.py", line 144, in __call__ ERROR nova.api.openstack return resp(environ, start_response) ERROR nova.api.openstack File "/usr/lib/python2.7/site-packages/webob/dec.py", line 130, in __call__ ERROR nova.api.openstack resp = self.call_func(req, *args, **self.kwargs) ERROR nova.api.openstack File "/usr/lib/python2.7/site-packages/webob/dec.py", line 195, in call_func ERROR nova.api.openstack return self.func(req, *args, **kwargs) ERROR nova.api.openstack File "/usr/lib/python2.7/site-packages/osprofiler/web.py", line 108, in __call__ ERROR nova.api.openstack return request.get_response(self.application) ERROR nova.api.openstack File "/usr/lib/python2.7/site-packages/webob/request.py", line 1299, in send ERROR nova.api.openstack application, catch_exc_info=False) ERROR nova.api.openstack File "/usr/lib/python2.7/site-packages/webob/request.py", line 1263, in call_application ERROR nova.api.openstack app_iter = application(self.environ, start_response) ERROR nova.api.openstack File "/usr/lib/python2.7/site-packages/webob/dec.py", line 130, in __call__ ERROR nova.api.openstack resp = self.call_func(req, *args, **self.kwargs) ERROR nova.api.openstack File "/usr/lib/python2.7/site-packages/webob/dec.py", line 195, in call_func ERROR nova.api.openstack return self.func(req, *args, **kwargs) ERROR nova.api.openstack File "/usr/lib/python2.7/site-packages/keystonemiddleware/auth_token/__init__.py", line 332, in __call__ ERROR nova.api.openstack response = self.process_request(req) ERROR nova.api.openstack File "/usr/lib/python2.7/site-packages/keystonemiddleware/auth_token/__init__.py", line 623, in process_request ERROR nova.api.openstack resp = super(AuthProtocol, self).process_request(request) ERROR nova.api.openstack File "/usr/lib/python2.7/site-packages/keystonemiddleware/auth_token/__init__.py", line 405, in process_request ERROR nova.api.openstack allow_expired=allow_expired) ERROR nova.api.openstack File "/usr/lib/python2.7/site-packages/keystonemiddleware/auth_token/__init__.py", line 435, in _do_fetch_token ERROR nova.api.openstack data = self.fetch_token(token, **kwargs) ERROR nova.api.openstack File "/usr/lib/python2.7/site-packages/keystonemiddleware/auth_token/__init__.py", line 762, in fetch_token ERROR nova.api.openstack allow_expired=allow_expired) ERROR nova.api.openstack File "/usr/lib/python2.7/site-packages/keystonemiddleware/auth_token/_identity.py", line 217, in verify_token ERROR nova.api.openstack auth_ref = self._request_strategy.verify_token( ERROR nova.api.openstack File "/usr/lib/python2.7/site-packages/keystonemiddleware/auth_token/_identity.py", line 168, in _request_strategy ERROR nova.api.openstack strategy_class = self._get_strategy_class() ERROR nova.api.openstack File "/usr/lib/python2.7/site-packages/keystonemiddleware/auth_token/_identity.py", line 190, in _get_strategy_class ERROR nova.api.openstack if self._adapter.get_endpoint(version=klass.AUTH_VERSION): ERROR nova.api.openstack File "/usr/lib/python2.7/site-packages/keystoneauth1/adapter.py", line 176, in get_endpoint ERROR nova.api.openstack return self.session.get_endpoint(auth or self.auth, **kwargs) ERROR nova.api.openstack File "/usr/lib/python2.7/site-packages/keystoneauth1/session.py", line 856, in get_endpoint ERROR nova.api.openstack return auth.get_endpoint(self, **kwargs) ERROR nova.api.openstack File "/usr/lib/python2.7/site-packages/keystoneauth1/identity/base.py", line 212, in get_endpoint ERROR nova.api.openstack service_catalog = self.get_access(session).service_catalog ERROR nova.api.openstack File "/usr/lib/python2.7/site-packages/keystoneauth1/identity/base.py", line 136, in get_access ERROR nova.api.openstack self.auth_ref = self.get_auth_ref(session) ERROR nova.api.openstack File "/usr/lib/python2.7/site-packages/keystoneauth1/identity/generic/base.py", line 196, in get_auth_ref ERROR nova.api.openstack self._plugin = self._do_create_plugin(session) ERROR nova.api.openstack File "/usr/lib/python2.7/site-packages/keystoneauth1/identity/generic/base.py", line 191, in _do_create_plugin ERROR nova.api.openstack raise exceptions.DiscoveryFailure('Could not determine a suitable URL ' ERROR nova.api.openstack DiscoveryFailure: Could not determine a suitable URL for the plugin ERROR nova.api.openstack Any request results in a smiler error. Am I possibly missing a "new" configuration option in nova.conf or api-paste.in? Here is a list of packages that where updated via yum update. ---> Package openstack-cinder.noarch 1:10.0.1-1.el7 will be updated ---> Package openstack-cinder.noarch 1:10.0.5-1.el7 will be an update ---> Package openstack-dashboard.noarch 1:11.0.1-2.el7 will be updated ---> Package openstack-dashboard.noarch 1:11.0.3-1.el7 will be an update ---> Package openstack-heat-api.noarch 1:8.0.1-1.el7 will be updated ---> Package openstack-heat-api.noarch 1:8.0.4-1.el7 will be an update ---> Package openstack-heat-api-cfn.noarch 1:8.0.1-1.el7 will be updated ---> Package openstack-heat-api-cfn.noarch 1:8.0.4-1.el7 will be an update ---> Package openstack-heat-common.noarch 1:8.0.1-1.el7 will be updated ---> Package openstack-heat-common.noarch 1:8.0.4-1.el7 will be an update ---> Package openstack-heat-engine.noarch 1:8.0.1-1.el7 will be updated ---> Package openstack-heat-engine.noarch 1:8.0.4-1.el7 will be an update ---> Package openstack-keystone.noarch 1:11.0.0-1.el7 will be updated ---> Package openstack-keystone.noarch 1:11.0.3-1.el7 will be an update ---> Package openstack-magnum-api.noarch 0:4.1.0-2.el7 will be updated ---> Package openstack-magnum-api.noarch 0:4.1.3-1.el7 will be an update ---> Package openstack-magnum-common.noarch 0:4.1.0-2.el7 will be updated ---> Package openstack-magnum-common.noarch 0:4.1.3-1.el7 will be an update ---> Package openstack-magnum-conductor.noarch 0:4.1.0-2.el7 will be updated ---> Package openstack-magnum-conductor.noarch 0:4.1.3-1.el7 will be an update ---> Package openstack-neutron.noarch 1:10.0.1-1.el7 will be updated ---> Package openstack-neutron.noarch 1:10.0.3-1.el7 will be an update ---> Package openstack-neutron-common.noarch 1:10.0.1-1.el7 will be updated ---> Package openstack-neutron-common.noarch 1:10.0.3-1.el7 will be an update ---> Package openstack-neutron-fwaas.noarch 1:10.0.1-1.el7 will be updated ---> Package openstack-neutron-fwaas.noarch 1:10.1.0-1.el7 will be an update ---> Package openstack-neutron-ml2.noarch 1:10.0.1-1.el7 will be updated ---> Package openstack-neutron-ml2.noarch 1:10.0.3-1.el7 will be an update ---> Package openstack-neutron-openvswitch.noarch 1:10.0.1-1.el7 will be updated ---> Package openstack-neutron-openvswitch.noarch 1:10.0.3-1.el7 will be an update ---> Package openstack-nova-api.noarch 1:15.0.3-2.el7 will be updated ---> Package openstack-nova-api.noarch 1:15.0.7-1.el7 will be an update ---> Package openstack-nova-common.noarch 1:15.0.3-2.el7 will be updated ---> Package openstack-nova-common.noarch 1:15.0.7-1.el7 will be an update ---> Package openstack-nova-conductor.noarch 1:15.0.3-2.el7 will be updated ---> Package openstack-nova-conductor.noarch 1:15.0.7-1.el7 will be an update ---> Package openstack-nova-console.noarch 1:15.0.3-2.el7 will be updated ---> Package openstack-nova-console.noarch 1:15.0.7-1.el7 will be an update ---> Package openstack-nova-novncproxy.noarch 1:15.0.3-2.el7 will be updated ---> Package openstack-nova-novncproxy.noarch 1:15.0.7-1.el7 will be an update ---> Package openstack-nova-placement-api.noarch 1:15.0.3-2.el7 will be updated ---> Package openstack-nova-placement-api.noarch 1:15.0.7-1.el7 will be an update ---> Package openstack-nova-scheduler.noarch 1:15.0.3-2.el7 will be updated ---> Package openstack-nova-scheduler.noarch 1:15.0.7-1.el7 will be an update ---> Package openstack-selinux.noarch 0:0.7.13-2.el7 will be updated ---> Package openstack-selinux.noarch 0:0.8.7-1.el7 will be an update Thanks, Avery