参考文档：https://docs.docker.com/compose/compose-file/

    docker-compose.yml

    1. version: '3'
    3. services:
    5.   web:
    6.     image: wordpress
    7.     ports:
    8.       - 8080:80
    9.     environment:
    10.       WORDPRESS_DB_HOST: mysql
    11.       WORDPRESS_DB_PASSWORD: root
    12.     networks:
    13.       - my-network
    14.     depends_on:
    15.       - mysql
    16.     deploy:
    17.       mode: replicated
    18.       replicas: 3
    19.       restart_policy:
    20.         condition: on-failure
    21.         delay: 5s
    22.         max_attempts: 3
    23.       update_config:
    24.         parallelism: 1
    25.         delay: 10s
    27.   mysql:
    28.     image: mysql:5.7
    29.     environment:
    30.       MYSQL_ROOT_PASSWORD: root
    31.       MYSQL_DATABASE: wordpress
    32.     volumes:
    33.       - mysql-data:/var/lib/mysql
    34.     networks:
    35.       - my-network
    36.     deploy:
    37.       mode: global
    38.       placement:
    39.         constraints:
    40.           - node.role == manager
    42. volumes:
    43.   mysql-data:
    45. networks:
    46.   my-network:
    47.     driver: overlay

    进入docker swarm manage 相关目录
    /Users/silver/dev/project/test/dockercompose/swarm

    新增并启动 services：wordpress
    docker stack deploy wordpress —compose-file=docker-compose.yml

    image.png

    查看服务
    docker stack ls
    image.png

    查看 wordpress service详情
    docker stack ps wordpress
    image.png

    查看 wordpress services信息
    docker stack services wordpress
    image.png

    查看某个service日志
    docker service logs +service

    删除当前services
    docker stack rm wordpress

    问题：
    如果网络访问不稳定，可能由于虚拟机休眠等问题造成，可以重启docker服务