Kubectl在通过minikube创建部署时抛出ImagePullBackOff错误

Question

尝试从映像创建展开

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

然后执行kubectl get pods并使用以下命令检查hello-minikube pod的日志

kubectl pod describe <pod-name>抛出以下错误

  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

可以使用以下命令解决此错误：

使用docker-machine ls

• If检查扩展坞计算机是否正在运行不存在计算机，然后使用docker-machine create <machine-name>

• Then创建一个扩展坞计算机使用docker-machine ip <machine-name>

• Then获取此计算机的IP首先使用minikube delete删除任何现有的

1. 群集并使用minikube start --vm-driver="virtualbox" --insecure-registry="docker-machine IP":80
2. 重新启动然后运行kubectl create deployment hello-minikube --image=k8s.gcr.io/echoserver:1.10并检查日志，它将显示已拉取的映像

Answer 2

从这些事件看，调用192.168.64.1:53上的DNS服务器来解析k8s.gcr.io似乎失败了。检查是否有DNS服务器在该IP上运行。它可以在minikube主机上的/etc/resolv.conf (如果是Linux)中进行配置。