kubernetes建立yaml,pod服務一直處於 ContainerCreating狀態的緣由查找與解決

 

 

 

 

 

 

最近剛剛入手研究kubernetes,運行容器的時候,發現一直處於ContainerCreating狀態,悲了個催,剛入手就遇到了點麻煩,下面來說講如何查找問題及解決的

redis

運行容器命令:docker

kubectl -f create redis.yamlide

kubectl get pod redisui

NAME                 READY     STATUS              RESTARTS   AGE
redis-master-6jgsl   0/1       ContainerCreating   0          12sthis

一直處於ContainerCreating,沒有處於running狀態spa

查看相關日誌日誌

kubectl describe pod redis-6jgslorm

Name:        redis-master-6jgsl
Namespace:    default
Node:        127.0.0.1/127.0.0.1
Start Time:    Wed, 20 Sep 2017 09:07:39 +0800
Labels:        name=redis-master
Status:        Pending
IP:        
Controllers:    ReplicationController/redis-master
Containers:
  master:
    Container ID:        
    Image:            kubeguide/redis-master
    Image ID:            
    Port:            6379/TCP
    State:            Waiting
      Reason:            ContainerCreating
    Ready:            False
    Restart Count:        0
    Volume Mounts:        <none>
    Environment Variables:    <none>
Conditions:
  Type        Status
  Initialized     True 
  Ready     False 
  PodScheduled     True 
No volumes.
QoS Class:    BestEffort
Tolerations:    <none>
Events:
  FirstSeen    LastSeen    Count    From            SubObjectPath    Type        Reason        Message
  ---------    --------    -----    ----            -------------    --------    ------        -------
  1m        1m        1    {default-scheduler }            Normal        Scheduled    Successfully assigned redis-master-6jgsl to 127.0.0.1
  1m        47s        3    {kubelet 127.0.0.1}            Warning        FailedSync    Error syncing pod, skipping: failed to "StartContainer" for "POD" with ErrImagePull: "image pull failed for registry.access.redhat.com/rhel7/pod-infrastructure:latest, this may be because there are no credentials on this request.  details: (open /etc/docker/certs.d/registry.access.redhat.com/redhat-ca.crt: no such file or directory)"

  1m    10s    4    {kubelet 127.0.0.1}        Warning    FailedSync    Error syncing pod, skipping: failed to "StartContainer" for "POD" with ImagePullBackOff: "Back-off pulling image \"registry.access.redhat.com/rhel7/pod-infrastructure:latest\""blog

 

 

 

 

看到registry.access.redhat.com/rhel7/pod-infrastructure:latest感受很奇怪,我設置的倉庫是grc.io,爲何去拉取這個鏡像,懷疑是否是什麼沒有安裝好。嘗試運行docker pull registry.access.redhat.com/rhel7/pod-infrastructure:latest,提示redhat-ca.crt: no such file or directory。ls查看改文件是個軟鏈接,連接目標是/etc/rhsm,查看沒有rhsm,嘗試安裝yum install *rhsm*,出現相關軟件,感受比較符合,因此安裝查看產生了/etc/rhsm文件夾。ip

 

 

 

 

再次運行kubectl get pods

NAME                 READY     STATUS    RESTARTS   AGEredis-master-qhd12   1/1       Running   0          13m

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