This patch consumes the centralised Ansible test scripts
implemented in https://review.openstack.org/381853
Combined backport of:
- https://review.openstack.org/382311
- https://review.openstack.org/388443
Change-Id: If42c1f2d26d0fda8e120898832a64809f4ce5819
(cherry picked from commit d1c0549e21)