Matchmaker with game servers in GCP


My game servers are currently in GCP (I plan to move them into AMS someday, but not today), and I want to connect with the AB Matchmaking service.
Game servers in GCP are not permanent instances, and each instance has its own IP when it starts.

So my questions are:

  • Do you have a guide on how to connect with GCP from AB Matchmaker? (Not GCP specific is still ok, but any external servers?)
  • Is it possible to launch a GCP command from AB Matchmaker to start a new game server? (Maybe use Matchmaker Custom Functions?)

Thank you!