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  • docker探索-使用docker service管理swarm(十一 )

    本文转自:https://www.cnblogs.com/atuotuo/p/6265541.html

    1、创建一个 Docker service

    docker service create --replicas 1 --name myhelloworld alpine ping docker.com

    --replicas: 标识运行实例个数

    --name: service 的名称

    alpine ping docker.com: 运行参数,表明service将运行一个Alpine Linux container,并且执行 ping docker.com 的命令。

    2、审视 Docker service

    $ docker service inspect --pretty myhelloworld

    --pretty: 指定返回为简约格式,否则,讲义JSON格式返回

    3、查看 service 上运行 node 的情况

    $ docker service ps myhelloworld

     

    4、查看容器详细信息

    docker ps

    5、修改service 规模

    $ docker service scale myhelloworld=5

    6、删除 service

    $ docker service rm myhelloworld

    7、轮询更新

    $ docker service create 

      --replicas 3 
      --name redis 
      --update-delay 10s 
      redis:3.0.6

     

     查看 service 状态

    $ docker service inspect --pretty myredis

    8、更新 service

    更新节点

    #docker service update --image redis:3.0.6 myredis

    指定service的某个节点排满状态

    $ docker node update --availability drain worker1

    此后,将不会再在worker1 上面分派任务

    9、查看swarm的存在的service列表

    [root@node1 docker-compose]# docker service list
    ID            NAME                MODE        REPLICAS  IMAGE
    6yv909v5mja6  eureka_peer3        replicated  1/1       192.168.6.132:5000/jacky/microservice-discovery-eureka-ha:1.0-SNAPSHOT
    m6wc4dcl0vts  eureka_peer1        replicated  1/1       192.168.6.132:5000/jacky/microservice-discovery-eureka-ha:1.0-SNAPSHOT
    un42g3kd94en  eureka_userService  replicated  1/1       192.168.6.132:5000/jacky/microservice-provider-user:1.0-SNAPSHOT
    y8gyq056nm3f  portainer           replicated  1/1       portainer/portainer:latest
    zg53vjcj4noa  eureka_peer2        replicated  1/1       192.168.6.132:5000/jacky/microservice-discovery-eureka-ha:1.0-SNAPSHOT

     10、删除swarm中的服务

    [root@node1 docker-compose]# docker service rm eureka_userService
    eureka_userService
    [root@node1 docker-compose]# docker service ls
    ID            NAME          MODE        REPLICAS  IMAGE
    6yv909v5mja6  eureka_peer3  replicated  1/1       192.168.6.132:5000/jacky/microservice-discovery-eureka-ha:1.0-SNAPSHOT
    m6wc4dcl0vts  eureka_peer1  replicated  1/1       192.168.6.132:5000/jacky/microservice-discovery-eureka-ha:1.0-SNAPSHOT
    y8gyq056nm3f  portainer     replicated  1/1       portainer/portainer:latest
    zg53vjcj4noa  eureka_peer2  replicated  1/1       192.168.6.132:5000/jacky/microservice-discovery-eureka-ha:1.0-SNAPSHOT

    注意:正在运行中的swarm 服务也是可以删除的

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  • 原文地址:https://www.cnblogs.com/520playboy/p/7929562.html
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