docker-compose.yml

services:
  db:
    # Always specify your version
    # used alpine version because we do not need the whole debian os that comes with postgres default image
    # alpine is more than enough in our case
    image: postgres:16.2-alpine
    environment:
      POSTGRES_DB: ClassroomDb
      POSTGRES_USER: admin
      POSTGRES_PASSWORD: admin
    ports:
      - "5432:5432"
    volumes:
      - db-data:/var/lib/postgresql/data
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U admin -d ClassroomDb"]
      interval: 10s
      timeout: 5s
      retries: 5
      start_period: 10s

  pgadmin:
    # Always specify your version
    # 8.5 is the latest right now so stick with this so the code works in years to come
    image: dpage/pgadmin4:8.5
    restart: always
    container_name: pgadmin4
    environment:
      - PGADMIN_DEFAULT_EMAIL=admin@admin.com
      - PGADMIN_DEFAULT_PASSWORD=pgadmin4
    ports:
      - '5050:80'
    
    # db must be running and healthy before starting the pgadmin service
    depends_on:
      - db
    healthcheck:
      test: ["CMD-SHELL", "curl -f http://localhost:80/login || exit 1"]
      interval: 10s
      timeout: 5s
      retries: 5
      start_period: 10s

  # backend:
  #   build: .
  #   ports:
  #     - "3000:3000"
    
  #   # db must be running and healthy before starting the backend service
  #   depends_on:
  #     - db
  #   restart: on-failure
  #   healthcheck:
  #     test: ["CMD-SHELL", "curl -f http://localhost:3000/health || exit 1"]
  #     interval: 10s
  #     timeout: 5s
  #     retries: 5
  #     start_period: 10s

volumes:
  db-data: