docker-compose.yml

version: '3'

services:
  db:
    image: postgres:9.6.10
    ports:
      - 5432:5432
    volumes:
      - ./tmp/postgres_data:/var/lib/postgresql/data
    healthcheck:
      test: ["CMD", "pg_isready", "-U", "postgres"]
      interval: 10s
      timeout: 5s
      retries: 3

  redis:
    image: redis
    healthcheck:
      test: ["CMD", "redis-cli", "ping"]
      interval: 10s
      timeout: 5s
      retries: 3

  web: &base_image
    build: 
      context: .
      args:
        - extra_packages=nodejs
        - rails_env=development
    depends_on:
      - db
      - redis
    links:
      - db
      - redis
    ports:
      - 3000:3000
    volumes:
      - .:/var/app
      - gemdata:/usr/local/bundle/
    command: bin/rails s -b '0.0.0.0'
    environment:
      DATABASE_URL: postgres://postgres:@db/
      EXECJS_RUNTIME: Node
      REDIS_URL: redis://redis:6379
      SMTP_ADDRESS: mail

  jobs:
    <<: *base_image
    depends_on:
      - db
      - redis
    links:
      - db
      - redis
    volumes:
      - .:/var/app
      - gemdata:/usr/local/bundle/
    command: bundle exec sidekiq -q critical,2 -q default
    ports: []

  mail:
    image: mailhog/mailhog:latest
    ports:
      - 8025:8025

volumes:
  gemdata: