Docker Compose Validator

version: "3.8"
services:
  web:
    image: nginx:latest
    ports:
      - "80:80"
    depends_on:
      - api
  api:
    build: ./api
    ports:
      - "3000:3000"
    environment:
      - DATABASE_URL=postgres://db:5432/app
    depends_on:
      - db
  db:
    image: postgres:15
    environment:
      POSTGRES_DB: app
      POSTGRES_PASSWORD: secret
    volumes:
      - db-data:/var/lib/postgresql/data

volumes:
  db-data: