application.conf

akka {
  loggers          = [akka.event.slf4j.Slf4jLogger]
  loglevel         = "DEBUG"

  actor {
    provider = akka.remote.RemoteActorRefProvider
  }

  remote {
    enabled-transports = [akka.remote.netty.tcp]

    netty.tcp {
      hostname = "localhost"
      port     = 8859
    }
  }
}

app {
  db {
     url = "jdbc:postgresql:app-db"
     driver = "org.postgresql.Driver"
     user = "test"
     password = "test"
  }
}

prod.conf

include "/application.conf"

app {
  db {
     user = "realUser"
     password = "funkyPass!039"
  }
}