CodePlayer

使用  kubectl proxy 启用 Dashboard时访问http://localhost:8001/api/v1/namespaces/kubernetes-dashboard/services/https:kubernetes-dashboard:/proxy/网址报错，报错内容如下：

{
  "kind": "Status",
  "apiVersion": "v1",
  "metadata": {},
  "status": "Failure",
  "message": "no endpoints available for service \"https:kubernetes-dashboard:\"",
  "reason": "ServiceUnavailable",
  "code": 503
}

执行命令kubectl get pod -n kubernetes-dashboard，获取指定名称空间的pod

D:\k8s-for-docker-desktop-1.25.0>kubectl get pod -n kubernetes-dashboard
NAME                                         READY   STATUS             RESTARTS   AGE
dashboard-metrics-scraper-748b4f5b9d-5spjg   1/1     Running            0          41m
kubernetes-dashboard-68955f84f4-lmqbs        0/1     ImagePullBackOff   0          41m

查看结果会发现kubernetes-dashboard 名称空间下的 Pod kubernetes-dashboard-68955f84f4-lmqbs 状态出现ImagePullBackOff

执行命令kubectl describe pod kubernetes-dashboard-68955f84f4-lmqbs，查看pod 节点的描述信息

D:\k8s-for-docker-desktop-1.25.0>kubectl describe pod kubernetes-dashboard-68955f84f4-lmqbs
Error from server (NotFound): pods "kubernetes-dashboard-68955f84f4-lmqbs" not found

执行命令kubectl get pods kubernetes-dashboard-68955f84f4-lmqbs -n kubernetes-dashboard -o wide，获取kubernetes-dashboard的pod信息，并查看附加信息【如：pod的IP及在哪个节点NODE运行等】

D:\k8s-for-docker-desktop-1.25.0>kubectl get pods kubernetes-dashboard-68955f84f4-lmqbs -n kubernetes-dashboard -o wide
NAME                                    READY   STATUS             RESTARTS   AGE   IP          NODE             NOMINATED NODE   READINESS GATES
kubernetes-dashboard-68955f84f4-lmqbs   0/1     ImagePullBackOff   0          49m   10.1.0.32   docker-desktop   <none>           <none>

从结果中查看NODE参数能看到该Pod被调度到了 docker-desktop节点

执行命令kubectl get pods kubernetes-dashboard-68955f84f4-lmqbs -n kubernetes-dashboard -o yaml，确定Pod所使用的容器镜像：

D:\k8s-for-docker-desktop-1.25.0>kubectl get pods  kubernetes-dashboard-68955f84f4-lmqbs -n kubernetes-dashboard -o yaml
apiVersion: v1
kind: Pod
metadata:
  creationTimestamp: "2022-12-15T05:46:49Z"
  generateName: kubernetes-dashboard-68955f84f4-
  labels:
    k8s-app: kubernetes-dashboard
    pod-template-hash: 68955f84f4
  name: kubernetes-dashboard-68955f84f4-lmqbs
  namespace: kubernetes-dashboard
  ownerReferences:
  - apiVersion: apps/v1
    blockOwnerDeletion: true
    controller: true
    kind: ReplicaSet
    name: kubernetes-dashboard-68955f84f4
    uid: a5439d01-3fb9-44bc-888b-cb07b8d43c60
  resourceVersion: "5801"
  uid: e76f43bb-c2f8-4f9f-ae5c-568d876bd284
spec:
  containers:
  - args:
    - --auto-generate-certificates
    - --namespace=kubernetes-dashboard
    image: kubernetesui/dashboard:v2.5.1
    imagePullPolicy: IfNotPresent

从结果中查看image参数参数能看到该Pod使用到了容器镜像是kubernetesui/dashboard:v2.5.1

运行结果是下面这样的则表示问题已解决