Keystone v2 api's are removed in [1], so it's required to use keystone v3 otherwise all requests fallbacks to keystone v2.0 and fails. [1] https://review.openstack.org/#/c/499783/ Change-Id: Ifdf1493a1adf3384c7ccba78c1ed7b7710f83d40 Closes-Bug: #1723838