docker-compose.yml

version: '3.8'

services:
  web:
    build:
      context: ./
      dockerfile: ./Dockerfile
    ports:
      - 3000:3000
    depends_on:
      db:
        condition: service_healthy
      chrome:
        condition: service_started
    environment:
      DATABASE_HOST: db
      SELENIUM_DRIVER_URL: http://chrome:4444/wd/hub
    env_file: .env
    stdin_open: true
    tty: true
    volumes:
      - ./:/app
      - web-bundle:/usr/local/bundle
      - node-modules:/app/node_modules
    command: >
      bash -c "
        rm -f /app/tmp/pids/server.pid
        yarn build --watch < /dev/zero &
        yarn build:css --watch < /dev/zero &
        rails s -b 0.0.0.0 -p 3000
      "

  db:
    image: mysql/mysql-server:8.0
    ports:
      - 3306:3306
    healthcheck:
      test: ['CMD', 'mysqladmin', 'ping']
      interval: 5s
      timeout: 5s
      retries: 5
    environment:
      MYSQL_ROOT_HOST: '%'
      MYSQL_ALLOW_EMPTY_PASSWORD: 'yes'
      TZ: 'Asia/Tokyo'
    stdin_open: true
    tty: true
    volumes:
      - mysql-data:/var/lib/mysql

  chrome:
    image: seleniarm/standalone-chromium
    ports:
      - 4444:4444
    shm_size: 2gb
    stdin_open: true
    tty: true

volumes:
  web-bundle:
  mysql-data:
  node-modules:
    driver: local
    driver_opts:
      type: none
      device: ${PWD}/node_modules
      o: bind