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: Ie2794d5fb12785e7c620c4ec8e3ccc2fb64d9e3b Closes-Bug: #1723838