docker-compose.yml

services: 
  phoenix:
    build:
      context: .
    environment: 
      PGUSER: postgres
      PGPASSWORD: postgres
      PGDATABASE: book_my_gigs_dev
      PGPORT: 5432
      PGHOST: db
    ports:
      - '4000:4000'
    depends_on:
      - db
    networks:
      - backend
    volumes:
      - phoenix_deps:/book_my_gigs/deps
      - phoenix_build:/book_my_gigs/_build
      - ./:/book_my_gigs
    expose:
      - 4000
    
  db: 
    image: postgres:latest
    hostname: db # facultatif car par défaut il prend le nom du service
    environment:
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: postgres
      POSTGRES_DB: book_my_gigs_dev
    restart: always
    # name:/docker_path (but this time docker containes the data file)
    # ./local_path:/docker_path
    volumes:
      - ./data:/var/lib/postrgresql/data
    networks:
      - backend
    ports:
      - '5432:5432'

# Allows containers to communicate over the same network
networks:
  backend:
    driver: bridge

volumes:
  phoenix_deps:
  phoenix_build: