When deploying Jewel from master we still need to enable this code since
the container image has such check. This check still exists because
ceph-disk is not able to create a GPT label on a drive that does not
have one.
Signed-off-by: Sébastien Han <seb@redhat.com>
1. add the variables to docker_collocation
2. trigger the check when a MDS is part of the inventory file, not when
we run on an MDS...
Signed-off-by: Sébastien Han <seb@redhat.com>