
Added auth_url to the context we pass to castellan library. In a change [1] intended to deprecate the use of auth_endpoint passed as the oslo config, it actually completely removed the use of it[2], so this change became necessary or the integration is broken. [1] - https://review.openstack.org/#/c/483457 [2] - https://review.openstack.org/#/c/483457/6/castellan/key_manager/barbican_key_manager.py@143 Change-Id: I933367fa46aa0a3dc9aedf078b1be715bfa8c054