docker compose file for selenium

docker-compose.yml

version: '3'
services:
  chromedriver:
    image: selenium/standalone-chrome-debug
    ports:
      - 5900:5900
    environment:
      VNC_NO_PASSWORD: 1
  web:
    build: .
    image: something
    command: bundle exec puma -b 'tcp://0.0.0.0:9292'
    ports:
      - 9292:9292
    volumes:
      - .:/app
    environment:
      RACK_ENV: development
      DATABASE_URL: postgres://postgres@db:5432/dev
    depends_on:
      - db      
  test:
    image: something:latest
    command: bundle exec puma -b 'tcp://0.0.0.0:3034' #bundle exec rake test
    ports:
      - 3034:3034
    volumes:
      - .:/app
    environment:
      RACK_ENV: test
    depends_on:
      - db
      - chromedriver
  db:
    image: postgres:10-alpine