Error in the Lab 10.1: "error: unable to upgrade connection: container not found ("ngix")"

zhangwe

When I did the step 11, I found the pod "thirdpage-77c4bc9757-bwbpx" not running. And then I finished step 12 and 13. When I tried to do step 14 , I got an error "error: unable to upgrade connection: container not found ("ngix")". Could you please help me to figure out this?

Thanks,

Wei

student@master:~$ kubectl create deployment thirdpage --image=ngix
deployment.apps/thirdpage created
student@master:~$ kubectl get po
NAME READY STATUS RESTARTS AGE
secondapp-5cf87c9f48-cxtj2 1/1 Running 0 20h
thirdpage-77c4bc9757-bwbpx 0/1 ImagePullBackOff 0 14s

student@master:~$ kubectl expose deployment thirdpage --type=NodePort --port=80
service/thirdpage exposed
student@master:~$ kubectl get svc
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
kubernetes ClusterIP 10.96.0.1 443/TCP 5d4h
secondapp NodePort 10.98.205.187 80:32497/TCP 20h
thirdpage NodePort 10.102.251.101 80:32023/TCP 4s

student@master:~$ kubectl exec -it thirdpage-77c4bc9757-bwbpx -- /bin/bash
error: unable to upgrade connection: container not found ("ngix")

chrispokorni

Hi Wei,

I am not sure there is such an image ngix available in the Docker Hub registry, so it makes sense that there is no such pod in your Kubernetes cluster either.
Try double-checking the spelling of the image name. This is just the result of a simple typo in your command.

Regards,
-Chris

zhangwe

Yes, my image name is not right. Thank you very much for your help.