Docker compose file for Rails and Selenium chrome

docker-compose.yml

version: '3'
services:
  #DATABASES
  db:
    image: postgres
    container_name: db
    volumes:
      - pgdata:/var/lib/postgresql/data
  
  #RAILS
  web:
    build: .
    # command: bundle exec rails s -p 3000 -b '0.0.0.0'
    container_name: web
    volumes:
      - ./app:/root/docker
    ports:
      - 3000:3000
      - 8080:8080
    tty: true
    stdin_open: true
    depends_on:
      - db

  #TEST - BROWSER
  selenium:
    image: selenium/standalone-chrome
    ports:
      - 4444:4444
      - 5900:5900

volumes:
  pgdata: