docker-compose.yml

version: '2.1'

volumes:
  express_sample_db_dev: {}
  express_sample_node_modules: {}

services:
  db:
    image: postgres:9.6.1
    volumes:
      - express_sample_db_dev:/var/lib/postgresql/data
    environment:
      - POSTGRES_DB=sampledb
      - POSTGRES_USER=sampleuser
      - POSTGRES_PASSWORD=samplesecret
      - POSTGRES_INITDB_ARGS=--encoding=UTF-8
    healthcheck:
      test: "pg_isready -h localhost -p 5432 -U postgres"
      interval: 3s
      timeout: 1s
      retries: 10

  express:
    build:
      context: .
      dockerfile: ./compose/express/Dockerfile-dev
    command: /start-dev.sh
    ports:
      - "3000:3000"
    volumes:
      - ./src:/app/src
      - ./package.json:/app/package.json
      - express_sample_node_modules:/app/node_modules
    environment:
      - EXPRESS_DB_HOST=postgres
      - EXPRESS_DB_PORT=5432
      - EXPRESS_DB_NAME=sampledb
      - EXPRESS_DB_USER=sampleuser
      - EXPRESS_DB_PASSWORD=samplesecret
    depends_on:
      db:
        condition: service_healthy
    links:
      - db:postgres