version: "3.2"

services:
  app:
    tty: true
    stdin_open: true
    build:
      context: .
      dockerfile: Dockerfile
    links:
      - db
    environment:
      - APP_DBHOST=db
    volumes:
      - .:/opt/webapps/app
    ports:
      - "3000:3000"
    command: bash -c "rm -f tmp/pids/server.pid && bundle exec rails server -p 3000 -b '0.0.0.0'"

  web:
    image: nginx
    volumes:
      - ./docker/nginx.template:/etc/nginx/conf.d/nginx.template
    ports:
      - "80:80"
    links:
      - app
    environment:
      APP: 'app'
    command: /bin/bash -c "envsubst '$$APP' < /etc/nginx/conf.d/nginx.template > /etc/nginx/conf.d/default.conf && nginx -g 'daemon off;'"

  db:
    image: postgres:9.4