Question

尝试从映像创建部署

kubectl create deployment hello-minikube --image=k8s.gcr.io/echoserver:1.10

然后执行kubectl get pods并使用

检查hello-minikube pod的日志

kubectl pod describe <pod-name>引发以下错误

  Type     Reason     Age                From               Message
  ----     ------     ----               ----               -------
  Normal   Scheduled  <unknown>          default-scheduler  Successfully assigned default/hello-minikube-797f975945-dmq26 to minikube
  Warning  Failed     42s                kubelet, minikube  Failed to pull image "k8s.gcr.io/echoserver:1.10": rpc error: code = Unknown desc = Error response from daemon: Get https://k8s.gcr.io/v2/: dial tcp: lookup k8s.gcr.io on 192.168.64.1:53: read udp 192.168.64.3:56747->192.168.64.1:53: read: connection refused
  Warning  Failed     27s                kubelet, minikube  Failed to pull image "k8s.gcr.io/echoserver:1.10": rpc error: code = Unknown desc = Error response from daemon: Get https://k8s.gcr.io/v2/: dial tcp: lookup k8s.gcr.io on 192.168.64.1:53: read udp 192.168.64.3:48279->192.168.64.1:53: read: connection refused
  Normal   BackOff    16s (x2 over 42s)  kubelet, minikube  Back-off pulling image "k8s.gcr.io/echoserver:1.10"
  Warning  Failed     16s (x2 over 42s)  kubelet, minikube  Error: ImagePullBackOff
  Normal   Pulling    4s (x3 over 42s)   kubelet, minikube  Pulling image "k8s.gcr.io/echoserver:1.10"
  Warning  Failed     4s (x3 over 42s)   kubelet, minikube  Error: ErrImagePull
  Warning  Failed     4s                 kubelet, minikube  Failed to pull image "k8s.gcr.io/echoserver:1.10": rpc error: code = Unknown desc = Error response from daemon: Get https://k8s.gcr.io/v2/: dial tcp: lookup k8s.gcr.io on 192.168.64.1:53: read udp 192.168.64.3:50616->192.168.64.1:53: read: connection refused

Answer 1

从这些事件看来，调用192.168.64.1:53的DNS服务器来解析k8s.gcr.io失败。检查是否在该IP上运行DNS服务器。可以在minikube主机上的/etc/resolv.conf（如果是Linux）中对其进行配置。

Answer 2

此错误可以使用解决：

通过docker-machine ls
如果不存在任何计算机，则使用docker-machine create <machine-name>
然后使用docker-machine ip <machine-name>
然后首先使用minikube delete删除任何现有的minikube集群，然后再次使用minikube start --vm-driver="virtualbox" --insecure-registry="docker-machine IP":80
然后运行kubectl create deployment hello-minikube --image=k8s.gcr.io/echoserver:1.10并检查日志，它将显示成功提取图像。

通过minikube创建部署时Kubectl引发ImagePullBackOff错误

2 个答案: