Question

我刚刚安装了kubernetes本地群集，但是当我尝试命令时

cluster/kubectl.sh run my-nginx --image=nginx --replicas=2 --port=80

创建并运行pods，这是我得到的：

NAME             READY     STATUS              RESTARTS   AGE
my-nginx-00t7f   0/1       ContainerCreating   0          23m
my-nginx-spy2b   0/1       ContainerCreating   0          23m

我使用了kubectl logs，我得到了

Pod "my-nginx-00t7f" in namespace "default" : pod is not in 'Running', 'Succeeded' or 'Failed' state - State: "Pending"

似乎它陷入了“等待”状态。状态。然后我用＆＃39; kubectl描述＆＃39;并得到了

Name:                           my-nginx-00t7f
Namespace:                      default
Image(s):                       nginx
Node:                           127.0.0.1/127.0.0.1
Start Time:                     Thu, 17 Dec 2015 22:27:18 +0800
Labels:                         run=my-nginx
Status:                         Pending
Reason:
Message:
IP:
Replication Controllers:        my-nginx (2/2 replicas created)
Containers:
  my-nginx:
    Container ID:
    Image:              nginx
    Image ID:
    QoS Tier:
      cpu:              BestEffort
      memory:           BestEffort
    State:              Waiting
      Reason:           ContainerCreating
    Ready:              False
    Restart Count:      0
    Environment Variables:
Conditions:
  Type          Status
  Ready         False 
Volumes:
  default-token-p09p6:
    Type:       Secret (a secret that should populate this volume)
    SecretName: default-token-p09p6
Events:
  FirstSeen     LastSeen        Count   From                    SubobjectPath   Type            Reason          Message
  ---------     --------        -----   ----                    -------------   --------        ------          -------
  26m           26m             1       {scheduler }                            Normal          Scheduled       Successfully assigned my-nginx-00t7f to 127.0.0.1
  22m           1m              79      {kubelet 127.0.0.1}                     Warning         FailedSync      Error syncing pod, skipping: ImagePullBackOff
  24m           5s              8       {kubelet 127.0.0.1}                     Warning         FailedSync      Error syncing pod, skipping: ErrImagePull

看来我的码头工人无法拉动图片，但实际上它可以，当我docker pull nginx时没有问题。

Answer 1

我认为你发现它是暂停容器，无法从Kubelet日志中提取。

Kubernetes需要为pod创建容器，以便保存共享资源，例如网络命名空间。它使用暂停容器，这是一个非常小的容器，只能永远睡觉。

Answer 2

如果您的容器仍处于待处理状态，请检查kube-schedular服务。如果它处于停止状态，请将其打开并检查。

kubernetes本地集群创建pod有'ErrImagePull'和'ImagePullBackOff'之类的错误

2 个答案: