docker-compose.yml

version: '2.4'

services:
  app: &app
    build:
      context: .
      dockerfile: ./Dockerfile
      target: development
      args:
        RUBY_VERSION: '2.6'
        NODE_MAJOR: '12'
        BUNDLER_VERSION: '2.0.2'
        YARN_VERSION: '1.19.1'
    image: evil_chat-dev:1.0.0
    volumes:
      - .:/app:cached
    tmpfs:
      - /tmp

  backend: &backend
    <<: *app
    stdin_open: true
    tty: true
    command: /bin/bash
    volumes:
      - .:/app:cached
      # We store Rails cache and gems in volumes to get speed up on Docker for Mac
      - rails_cache:/app/tmp/cache
      - bundle:/bundle
    environment:
      HISTFILE: /app/log/.bash_history
      MALLOC_ARENA_MAX: 2
      WEB_CONCURRENCY: 1
      EDITOR: vim
      RAILS_ENV: ${RAILS_ENV:-development}
      DATABASE_URL: postgres://postgres:postgres@postgres:5432
      REDIS_URL: redis://redis:6379/
      WEBPACKER_DEV_SERVER_HOST: webpacker
      DISABLE_SPRING: 1
    depends_on:
      postgres:
        condition: service_healthy
      redis:
        condition: service_healthy

  rails:
    <<: *backend
    command: bundle exec rails server -b 0.0.0.0
    ports:
      - '3000:3000'
    depends_on:
      postgres:
        condition: service_healthy
      redis:
        condition: service_healthy
      webpacker:
        condition: service_started

  webpacker:
    <<: *app
    command: ./bin/webpack-dev-server
    ports:
      - '3035:3035'
    volumes:
      - .:/app:cached
      - bundle:/bundle
    environment:
      NODE_ENV: development
      RAILS_ENV: ${RAILS_ENV:-development}
      WEBPACKER_DEV_SERVER_HOST: 0.0.0.0

  postgres:
    image: postgres:12
    volumes:
      - postgres:/var/lib/postgresql/data
      - .docker/.psqlrc:/root/.psqlrc:ro
      - ./log:/var/log/psql_history
    ports:
      - 5432
    healthcheck:
      test: pg_isready -U postgres -h 127.0.0.1
      interval: 5s

  redis:
    image: redis:4
    volumes:
      - redis:/data
    ports:
      - 6379
    healthcheck:
      test: redis-cli ping
      interval: 1s
      timeout: 3s
      retries: 30

volumes:
  bundle:
  postgres:
  redis:
  rails_cache: