hostname: "svc-db-postgres"
network:  "<< defaults_applications[svc-db-postgres].hostname >>"
volume:   "<< defaults_applications[svc-db-postgres].hostname >>"
docker:
  services:
    postgres:
      # Postgis is necessary for mobilizon
      image: postgis/postgis
      # Please set an version in your inventory file! 
      # Rolling release isn't recommended
      version: "latest"