Linux Foundation CKA Exam - Topic 9 Question 29 Discussion

Actual exam question for Linux Foundation's CKA exam

Question #: 29
Topic #: 9

[All CKA Questions]

Score:7%

Task

Create a new PersistentVolumeClaim

* Name: pv-volume

* Class: csi-hostpath-sc

* Capacity: 10Mi

Create a new Pod which mounts the PersistentVolumeClaim as a volume:

* Name: web-server

* Image: nginx

* Mount path: /usr/share/nginx/html

Configure the new Pod to have ReadWriteOnce access on the volume.

Finally, using kubectl edit or kubectl patch expand the PersistentVolumeClaim to a capacity of 70Mi and record that change.

AExplanation:
Solution:
vi pvc.yaml
storageclass pvc
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: pv-volume
spec:
accessModes:
- ReadWriteOnce
volumeMode: Filesystem
resources:
requests:
storage: 10Mi
storageClassName: csi-hostpath-sc
# vi pod-pvc.yaml
apiVersion: v1
kind: Pod
metadata:
name: web-server
spec:
containers:
- name: web-server
image: nginx
volumeMounts:
- mountPath: '/usr/share/nginx/html'
name: my-volume
volumes:
- name: my-volume
persistentVolumeClaim:
claimName: pv-volume
# craete
kubectl create -f pod-pvc.yaml
#edit
kubectl edit pvc pv-volume --record

Show Suggested Answer

Suggested Answer: A

by Sheridan at Aug 03, 2022, 08:32 PM

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Gail

5 months ago

I thought we were supposed to use 20Mi as a minimum.

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Nilsa

5 months ago

Nice setup! Nginx is perfect for serving static content.

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Daren

5 months ago

Wait, why only 10Mi? Seems a bit small for a web server.

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Carin

5 months ago

Totally agree, using ReadWriteOnce is the way to go!

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Chau

5 months ago

Just created a PVC named pv-volume with 10Mi capacity.

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Helene

6 months ago

I feel confident about creating the PVC, but I might mix up the volume names in the Pod definition. Need to double-check that!

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Quentin

6 months ago

I'm a bit unsure about the exact syntax for the kubectl edit command. Did we need to specify anything else besides the PVC name?

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Glenn

6 months ago

I think I remember that we need to define the PersistentVolumeClaim first before creating the Pod, right?

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Dorthy

6 months ago

This question seems similar to the practice we did on volume mounts. I hope I can recall the access modes correctly during the exam.

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Shala

6 months ago

Hmm, this seems like a tricky one. I'll need to carefully consider the requirements and think through the different options.

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Ahmed

6 months ago

I feel pretty confident about this one. I'll work through the calculations step-by-step and review my answers to ensure I've got the right numbers for the budget.

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