While hacking on tests, folks are going to be relying on the
default behavior of standard-test-roles which fills in these
Ansible variables from environment variables.
This is not necessary for execution in the pipeline, but just
for ease of use for folks looking at this first test in dist-git.
Run the basic and layering-basic vmcheck tests on qcow2 Atomic Host
images. It's full of hacks for now; I'd like to confirm first that there
aren't any oversights that would prevent the pipeline from running it.
Once we get it going, we can work on cleaning up and upstreaming the
hacks to standard-test-roles, and run all the vmcheck tests.
