How to use atlas-postgres module as the database backend?

[0xdu]

Question

I'd like to use PostgreSQL as the database backend for Atlas instead of the default MemoryDatabase. I see there is an atlas-postgres module in the repository with PostgresDatabase and PostgresService classes, but I couldn't find any documentation on how to configure and use it.

The Atlas documentation site doesn't seem to cover the PostgreSQL backend at all.

What I'm trying to do

Replace the in-memory database in memory.conf:

atlas.core.db {
  class = "com.netflix.atlas.core.db.MemoryDatabase"
}

with a PostgreSQL-backed database using the atlas-postgres module