docker-compose.yml

# HostName/ServiceName/ResourceName format: small-steps-api-<BUILD_ENV>-<service/resource>

version: '3.2'
services:
  api:
    build: api/
    entrypoint: ./entrypoints/api.${BUILD_ENV}.sh
    image: small-steps-api-${BUILD_ENV}:${TAG}
    hostname: small-steps-api-${BUILD_ENV}-api
    container_name: small-steps-api-${BUILD_ENV}-api
    env_file:
      - .env.${BUILD_ENV}
    depends_on:
      - db
      - run_migrations
    ports:
      - "8000:8000"
    restart: unless-stopped
    volumes:
      - type: bind
        source: ./api/
        target: /home/appuser/api/
    networks:
      - backend

  db:
    image: postgres:11.3
    hostname: small-steps-api-${BUILD_ENV}-db
    container_name: small-steps-api-${BUILD_ENV}-db
    ports:
      - "5432:5432"
    networks:
      - backend

  run_migrations:
    build: api
    image: small-steps-api-${BUILD_ENV}:${TAG}
    entrypoint: ./entrypoints/run_migrations.sh
    container_name: small-steps-api-${BUILD_ENV}-run_migrations
    env_file:
      - .env.${BUILD_ENV}
    volumes:
      - type: bind
        source: ./api/
        target: /home/appuser/api/
    networks:
      - backend
    depends_on:
      - db

networks:
    backend:
      name: small-steps-api-${BUILD_ENV}-network