docker-compose.sample.yml

version: "3.9"

services:
  web:
    image: ####
    ports:
      - 80:80
  api:
    image: ####
    ports:
      - 3000:3000
    environment:
      ENV_FILES: /run/secrets/api
    secrets:
      - api
    depends_on:
      - db
  # One-off container, only on first compose up with db.
  # migration:
  #   image: ####
  #   command: bash -c 'diesel migration run --database-url $$(cat /run/secrets/db-connection)'
  #   deploy:
  #     restart_policy:
  #       condition: on-failure
  #   secrets:
  #     - db-connection
  #   depends_on:
  #     - db
  db:
    image: postgres:13-alpine
    volumes:
      - db:/var/lib/postgresql/data
    environment:
      POSTGRES_PASSWORD_FILE: /run/secrets/db-password
    secrets:
      - db-password

volumes:
  db:
    driver_opts:
      uid: 0
      gid: 0

secrets:
  api:
    file: _secrets/api.env
  db-connection:
    file: _secrets/db-connection.txt
  db-password:
    file: _secrets/db-password.txt