version: '3'
services:
  web:
    image: your_image:latest
    ports:
      - "8081:80"
    deploy:
      labels:
        - scaleMin=3
        - scaleMax=16
      replicas: 3
      update_config:
        parallelism: 4
        delay: 10s
      resources:
        limits:
          cpus: '6.0'
          memory: 4096M
      restart_policy:
        condition: any
      placement:
        constraints:
          - node.role != manager