Docker Compose的坑

docker-compose.yml文件属性后面一定记得先空格在加参数

version: "3"
services:
  web:
    # replace username/repo:tag with your name and image details
    image: 192.168.250.69:5000/python:v1
    deploy:
      replicas: 5
      restart_policy:
        condition: on-failure
      resources:
        limits:
          cpus: "0.1"
          memory: 50M
    ports:
      - "81:80"
    networks:
      - webnet
  visualizer:
    image: dockersamples/visualizer:stable
    ports:
      - "8081:8080"
    volumes:
      - "/var/run/docker.sock:/var/run/docker.sock"
    deploy:
      placement:
        constraints: [node.role == manager]
    networks:
      - webnet
networks:
  webnet:

然后docker stack deploy -c docker-compose.yml getstartedlab运行成功