This patch consumes the centralised Ansible test scripts
implemented in https://review.openstack.org/381853
Combined backport of:
- https://review.openstack.org/382290
- https://review.openstack.org/388424
Change-Id: I486582d6793f61a08e09da8fe04203fac9c214bd
(cherry picked from commit 82d81c9b02)