Goal: 

The designate mDNS service should listen on the cluster IP for it's POD cluster interface as well as the predictable IP. This is to allow the mDNS service to be reached via a kubernetes Service which can be used to allow zone transfer from DNS secondaries  in RHOSP clusters.

Note: this should also help supporting bring your own bind but that is currently outside of scope.

Acceptance Criteria:

zone transfer from BIND9 services configured as secondaries can initiate zone transfers through kubernetes services that map to the members of the mDNS stateful set.