In order to implement something akin to split-horizon (T95288) I need to set up a separate recursor and auth DNS server for the new designate/pdns/mysql setup. The simplest way to do this is with separate hardware due to resolv.conf not being able to specify a port number.
Eventually we'll want doubles for everything, but one is a good start. It should probably live in the labs-support vlan if there's room.