CKAD Mock Exam Doubts

Kubernetes
#1

I got the question in the CKAD kodekloud mock exam series to install nginx using helm command and followed the exact solution . But validated incorrect. As per my understanding, the application installed on worker node instead of cluster3-controlplane. Probably that might be the reason. How to pass the nodeSelector value using helm command to select the specific node. do we need to use “–set nodeSelector==”. this is not something mentioned in the solution as well. Basically I am looking to deploy nginx in specific node[mainly control plane node] using bitnami/nginx helm chart . Please guide me (edited)

#2

Hi @shanmugam.saravanan,

Can you please give us the statement of the question then we can help you better

Regard

#3

the below is the question.
For this question, please set the context to cluster3 by running:

kubectl config use-context cluster3

Our new client wants to deploy the resources through the popular Helm tool. In the initial phase, our team lead wants to deploy nginx, a very powerful and versatile web server software that is widely used to serve static content, reverse proxying, load balancing, from the bitnami helm chart on the cluster3-controlplane node.

The chart URL and other specifications are as follows: -

  1. The chart URL link - https://charts.bitnami.com/bitnami

  2. The chart repository name should be polar.

  3. The release name should be nginx-server.

  4. All the resources should be deployed on the cd-tool-apd namespace.

NOTE: - You have to perform this task from the student-node.

=============
everything I performed this task from the student-node. But invalidated for this

Is Helm chart installed?
Are resources deployed on ns?

I did install helm chart and resources deployed in the correct ns. But it says invalidated. I am thinking it’s expecting this needs to be installed on cluster3-controlplane node. If that’s the case, how to schedule this in cluster3-controlplane node using helm

#4

Hi @shanmugam.saravanan

No need to install helm on cluster3-controlplane , this task need to be perform on studnet-node.
Be sure to switch to cluster3 and deploy the help

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#5

Sorry for the delayed reponed. I tired the same thing after switching and followed the same as mentioned , but validated as incorrect

#6

Hi @shanmugam.saravanan

Please provide us the list of commands you use to perform the task

#7

@mmkmou
Please verify the below screenshot. All the tasks were performed as per the question. But not validating correctly
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1 Like
#8

@mmkmou
I’m getting exactly the same issue, I completed the task also from student node, it looks like the issue is with the validation, I performed the same way as @shanmugam.saravanan

#9

I just ran this question, and used the solution from the End Exam page. It works for me, and it validated. I did:

     # Change to the right context
     kubectl config use-context cluster3
    
     # create the namespace for the install
     k create ns cd-tool-apd

     # add the repo as "polar"
     helm repo add polar https://charts.bitnami.com/bitnami

    # confirm the repo was correctly added
     helm repo ls

    # search for nginx in the repo
     helm search repo polar | grep nginx

     # install nginx into cd-tool-apd and confirm it installed
     helm install nginx-server polar/nginx -n cd-tool-apd
     k -n cd-tool-apd get all