version: '3'
services:
  database:
    image: "postgres:alpine" # use latest official postgres version
    ports:
      - 5432:5432
    # restart: always
    env_file:
      - database.env # configure postgres
    volumes:
      - database-data:/var/lib/postgresql/data/ # persist data even if container shuts down
      - ./setup/init.sql:/docker-entrypoint-initdb.d/init.sql
volumes:
  database-data: # named volumes can be managed easier using docker-compose