docker-compose.dev.yml

version: '2'

services:
  rails: &rails
    env_file: .env
    depends_on:
      - postgres
      - redis
    volumes:
      - .:/app
    volumes_from:
      - datastore
    build:
      context: .
      dockerfile: dockerfiles/Dockerfile-rails.dev
    command: bundle exec rails s -p 3000 -b '0.0.0.0'
    ports:
      - '3000:3000'
  node:
    <<: *rails
    build:
      context: .
      dockerfile: dockerfiles/Dockerfile-node.dev
    command: /app/bin/webpack-dev-server --host 0.0.0.0
    ports:
      - '8080:8080'
  datastore:
    image: busybox
    volumes:
      - postgres_data:/var/lib/postgresql/data
      - redis_data:/data
      - app_tmp:/app/tmp
      - app_vendor_bundle:/app/vendor/bundle
      - app_node_modules:/app/vendor/node_modules
  postgres:
    image: postgres:alpine
    volumes_from:
      - datastore
  redis:
    image: redis:alpine
    volumes_from:
      - datastore

volumes:
  postgres_data:
    driver: local
  redis_data:
    driver: local
  app_tmp:
    driver: local
  app_vendor_bundle:
    driver: local
  app_node_modules:
    driver: local

Dockerfile-node.dev

FROM node:6.10-alpine

ENV LANG ja_JP.UTF-8

RUN apk update && \
    apk upgrade && \
    apk --update --upgrade add \
      build-base \
      ruby

RUN mkdir /app
WORKDIR /app

COPY vendor/yarn.lock vendor/package.json /app/vendor/

RUN npm install --global yarn && \
    cd /app/vendor && \
    yarn install

Dockerfile-rails.dev

FROM ruby:2.3-alpine

ENV LANG ja_JP.UTF-8

RUN apk update && \
    apk upgrade && \
    apk --update --upgrade add \
      build-base \
      nodejs \
      git \
      postgresql-dev \
      libxml2-dev \
      libxslt-dev \
      zlib-dev \
      yaml-dev

RUN mkdir /app
WORKDIR /app

COPY Gemfile Gemfile.lock ./

RUN bundle config build.nokogiri --use-system-libraries && \
    bundle install -j4 --path /app/vendor/bundle