The name follows the patterns defined by zuul docs.
The Depends-On is to a necessary Tempest change for
handling the enviornment variable.
The gabbigts in gate/gabbits talk to keystone and nova
to simply confirm that the tests can run.
Depends-On: https://review.openstack.org/607507
Change-Id: I7a9efefb28e23bf47951617cbe08f177235688d6
Chris Dent