version: "3.6"
services:
  nginx:
    image: nginx
    volumes:
      - ./nginx_dev:/etc/nginx
    ports:
      - "80:80"
    deploy:
      mode: replicated
      replicas: 1
      restart_policy:
        condition: any
      placement:
        constraints: [node.role == manager]
      update_config:
        parallelism: 1
        order: start-first