version: '3'

services:
  db:
    image: postgres:12.5-alpine
    volumes:
      - db_data:/var/lib/postgresql/data
    environment:
      POSTGRES_USER: user
      POSTGRES_PASSWORD: user_12345
      POSTGRES_DB: url_shortener
    ports:
      - 5432:5432
  app:
    build:
      context: .
      dockerfile: Dockerfile.dev
    volumes:
      - .:/usr/src/app
      - gem_cache:/usr/local/bundle/gems
    command: bundle exec rails s -p 3000 -b '0.0.0.0'
    stdin_open: true
    tty: true
    env_file: .env.dev
    ports:
      - 3000:3000
    depends_on:
      - db
volumes:
  gem_cache:
  db_data: