2. Thiết Lập Hạ Tầng Cloud VPS & Cụm Docker Compose Kèm Nginx SSL

# FILE DOCKER-COMPOSE.YML KHỞI TẠO NGINX PROXY MANAGER VÀ DATABASE
version: '3.8'
services:
  npm:
    image: 'jc21/nginx-proxy-manager:latest'
    restart: unless-stopped
    ports:
      - '80:80'
      - '81:81'
      - '443:443'
    volumes:
      - ./npm-data:/data
      - ./npm-letsencrypt:/etc/letsencrypt

  postgres:
    image: postgres:16-alpine
    restart: unless-stopped
    environment:
      POSTGRES_USER: sme_admin
      POSTGRES_PASSWORD: SecretPassword2026!
      POSTGRES_DB: sme_master_db
    volumes:
      - ./pgdata:/var/lib/postgresql/data