t default] Failed to discover available identity versions when contacting http://ahswj-cloud-controller:35357. Attempting to parse version from URL.: ConnectFailure

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2018-09-13 21:39:20.778 80758 WARNING keystoneauth.identity.generic.base [req-ea24b7ad-5aee-44b2-b681-0907e2ab9bb8 5b3418856605468eaa85de19de6d5a54 6766100bc89d4a65a20e0a46ac4fc065 - default default] Failed to discover available identity versions when contacting http://ahswj-cloud-controller:35357. Attempting to parse version from URL.: ConnectFailure: Unable to establish connection to http://ahswj-cloud-controller:35357: HTTPConnectionPool(host='ahswj-cloud-controller', port=35357): Max retries exceeded with url: / (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7fb3444cfd50>: Failed to establish a new connection: [Errno 111] ECONNREFUSED',))
2018-09-13 21:39:21.775 80758 ERROR nova.compute.manager [req-ea24b7ad-5aee-44b2-b681-0907e2ab9bb8 5b3418856605468eaa85de19de6d5a54 6766100bc89d4a65a20e0a46ac4fc065 - default default] Instance failed network setup after 1 attempt(s): DiscoveryFailure: Could not determine a suitable URL for the plugin

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