
In Juno, this parameter is required otherwise Glance can't authentificate against Keystone. There is a patch in puppet-glance: https://review.openstack.org/#/c/133521/ but not merged yet (still under discussion). In the meantime, let's fix it in the composition layer. Change-Id: I8ab9ab365ad5c9266c9e71054d8b43ecbaef50ac