Mock Exam 2 Question: Create an nginx pod called `nginx-resolver` using image `n . . .

Kubernetes
#1

Samir:
Mock Exam 2 Question: Create an nginx pod called nginx-resolver using image nginx, expose it internally with a service called nginx-resolver-service. Test that you are able to look up the service and pod names from within the cluster. Use the image: busybox:1.28 for dns lookup. Record results in /root/CKA/nginx.svc and /root/CKA/nginx.pod

What I did:

kubectl run nginx-resolver --image=nginx
kubectl expose pod nginx-resolver --name=nginx-reslolver-name --port=80
kubectl run tester --image=busybox:1.28 → error msg: Container image busybox:1.28 is already present on machine. What is wrong here?

#2

Fernando Jimenez:
Do you have a pod running already named tester from previous runs? Please, check.

kubectl get pod tester

By the way

Container image busybox:1.28 is already present on machine

That’s not an error. That’s saying that the image busybox:1.28 is already cached in the host. The failure is afterward.

#3

Samir:
I dont have another tester pod

#4

Samir:
how can I clean the cache?

#5

Samir:
and why did I receive this error?

#6

Fernando Jimenez:
You want the cache, that’s that the reason it is failing. There must be something else.

#7

Samir:
I did nothing more than the steps I’ve written …

#8

Fernando Jimenez:
Did you try the lab previously?