version: "3"

services:
  db:
    image: postgres
    restart: always
    volumes:
      - db_data:/var/lib/postgresql/data/pgdata
    ports:
      - 5432:5432
    environment:
      PGDATA: /var/lib/postgresql/data/pgdata
      POSTGRES_USER: serverctl
      POSTGRES_PASSWORD: serverctlsecret
      POSTGRES_DB: serverctl 

volumes:
  db_data: {}