According to [1], "auth_uri" has been deprecated. This patch replace it by using "www_authenticate_uri" instead. [1] https://review.openstack.org/#/c/508522 Change-Id: I3242394fd4ebfa7eda390be872372a53b5311a46
Change-Id: I077f4e7c3b12689f809cd68177e00a097d6cd0a2