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Building Multi-Container Stacks

Architect production-ready full-stack applications with separated microservices, caching layers, and persistent database containers.

1. Production Full-Stack Architecture

Real-World Stack (`docker-compose.yml`):

version: '3.8'

services:
  # 1. Reverse Proxy Server
  proxy:
    image: nginx:alpine
    ports:
      - "80:80"
    volumes:
      - ./nginx.conf:/etc/nginx/nginx.conf:ro
    depends_on:
      - api

  # 2. Node.js REST API
  api:
    build:
      context: ./backend
      dockerfile: Dockerfile
    environment:
      - PORT=5000
      - MONGO_URI=mongodb://db:27017/shopdb
      - REDIS_URI=redis://cache:6379
    depends_on:
      - db
      - cache

  # 3. MongoDB Database
  db:
    image: mongo:6-jammy
    restart: unless-stopped
    volumes:
      - mongo_data:/data/db

  # 4. Redis Cache
  cache:
    image: redis:7-alpine
    restart: unless-stopped

volumes:
  mongo_data: