码头部署到Docker的Mac群集模式无法正常工作，如何排除故障？

Question

我想部署一堆服务到Docker for Mac。事先让我说，将我的堆栈部署到一个真正的群集完美工作。

我运行docker for mac测试版17.05.0-ce-rc1-mac8（16582）。我确实运行了swarm init。

这是我的YAML文件：

version: "3" 
services: 
    proxy: 
    image: traefik:1.2-alpine 
    command: --web --docker --docker.swarmmode --docker.domain=docker.localhost --docker.watch --debug --logLevel=DEBUG \ 
      --entryPoints='Name:https Address::443 TLS' \ 
      --entryPoints='Name:http Address::80 Redirect.EntryPoint:https' \ 
      --acme=true \ 
      --acme.entryPoint=https \ 
      --acme.email=myemail@gmail.com \ 
      --acme.storage=/etc/traefik/acme/acme.json \ 
      --acme.domains=mydomain.com \ 
      --acme.ondemand=true \ 
      --acme.onhostrule=true 
    networks: 
     - proxy 
    ports: 
     - 80:80 
     - 443:443 
     - 8080:8080 
    volumes: 
     - /var/run/docker.sock:/var/run/docker.sock 
     - traefikdata:/etc/traefik/acme 
    deploy: 
     placement: 
     constraints: 
      - node.labels.env == prod 
      - node.role == manager 
      - node.labels.traefik == yes 

volumes: 
    traefikdata: 
    driver: local-persist 
    driver_opts: 
     mountpoint: ${MOUNTPOINT}/data/traefik 

networks: 
    proxy: 
    driver: overlay 

的问题是，docker stack services proxy回报副本0/1。显然它正在等待什么。 docker service logs proxy_proxy什么也没有返回。这里的输出syslog -k Sender Docker：

Apr 24 22:15:21 MacBook-Pro Docker[2567] <Warning>: DNS lookup registry-1.docker.io AAAA: NoSuchRecord 
Apr 24 22:15:21 MacBook-Pro Docker[2567] <Notice>: DNS lookup registry-1.docker.io A: registry-1.docker.io <IN|19> [A (34.205.194.204)], registry-1.docker.io <IN|19> [A (34.239.237.19)], registry-1.docker.io <IN|19> [A (107.23.152.57)], registry-1.docker.io <IN|19> [A (50.17.48.108)], registry-1.docker.io <IN|19> [A (52.0.56.248)], registry-1.docker.io <IN|19> [A (52.45.235.210)] 
Apr 24 22:15:21 MacBook-Pro Docker[2567] <Warning>: DNS lookup auth.docker.io AAAA: NoSuchRecord 
Apr 24 22:15:21 MacBook-Pro Docker[2567] <Notice>: DNS lookup auth.docker.io A: auth.docker.io <IN|38> [A (34.205.194.204)], auth.docker.io <IN|38> [A (52.45.235.210)], auth.docker.io <IN|38> [A (52.0.56.248)], auth.docker.io <IN|38> [A (34.239.237.19)], auth.docker.io <IN|38> [A (50.17.48.108)], auth.docker.io <IN|38> [A (107.23.152.57)] 
Apr 24 22:15:22 MacBook-Pro Docker[2567] <Notice>: DNS lookup registry-1.docker.io A: registry-1.docker.io <IN|19> [A (34.205.194.204)], registry-1.docker.io <IN|19> [A (34.239.237.19)], registry-1.docker.io <IN|19> [A (107.23.152.57)], registry-1.docker.io <IN|19> [A (50.17.48.108)], registry-1.docker.io <IN|19> [A (52.0.56.248)], registry-1.docker.io <IN|19> [A (52.45.235.210)] 
Apr 24 22:15:22 MacBook-Pro Docker[2567] <Warning>: DNS lookup registry-1.docker.io AAAA: NoSuchRecord 

我不知道这是正常的，图像正确下载。

现在，我该如何解决发生了什么事？顺便说一句：我没有申请所有必要的标签，这里的docker inspect moby输出：

[ 
    { 
     "ID": "13xgtap3b898mwrxryj21phr5", 
     "Version": { 
      "Index": 41 
     }, 
     "CreatedAt": "2017-04-24T19:41:30.814976621Z", 
     "UpdatedAt": "2017-04-24T20:21:21.157096648Z", 
     "Spec": { 
      "Labels": { 
       "env": "prod", 
       "traefik": "yes" 
      }, 
      "Role": "manager", 
      "Availability": "active" 
     }, 
     "Description": { 
      "Hostname": "moby", 
      "Platform": { 
       "Architecture": "x86_64", 
       "OS": "linux" 
      }, 
      "Resources": { 
       "NanoCPUs": 4000000000, 
       "MemoryBytes": 2095894528 
      }, 
      "Engine": { 
       "EngineVersion": "17.05.0-ce-rc1", 
       "Plugins": [ 
        { 
         "Type": "Network", 
         "Name": "bridge" 
        }, 
        { 
         "Type": "Network", 
         "Name": "host" 
        }, 
        { 
         "Type": "Network", 
         "Name": "ipvlan" 
        }, 
        { 
         "Type": "Network", 
         "Name": "macvlan" 
        }, 
        { 
         "Type": "Network", 
         "Name": "null" 
        }, 
        { 
         "Type": "Network", 
         "Name": "overlay" 
        }, 
        { 
         "Type": "Volume", 
         "Name": "local" 
        }, 
        { 
         "Type": "Volume", 
         "Name": "local-persist" 
        } 
       ] 
      } 
     }, 
     "Status": { 
      "State": "ready", 
      "Addr": "192.168.65.2" 
     }, 
     "ManagerStatus": { 
      "Leader": true, 
      "Reachability": "reachable", 
      "Addr": "192.168.65.2:2377" 
     } 
    } 
] 

而且，我用在另一个容器的地方坚持驱动程序。

Answer 1

查找proxy服务的任务状态。它会告诉你为什么服务底层的任务失败，这应该解释为什么你的服务永远不会超过0/1复制品。

您可以使用docker service ps $SERVICE_NAME找到特定服务的任务。或者，与docker stack ps $STACK_NAME的堆栈服务的所有任务。

在任一种情况下，从第一列中挑选任务ID，然后使用docker inspect $TASK_ID获取任务详细信息。对于State，Status部分可能会说明running以外的内容，并且Message出现错误。