Linux Foundation Exam CKS Topic 3 Question 72 Discussion

Actual exam question for Linux Foundation's CKS exam

Question #: 72
Topic #: 3

[All CKS Questions]

Create a RuntimeClass named gvisor-rc using the prepared runtime handler named runsc.

Create a Pods of image Nginx in the Namespace server to run on the gVisor runtime class

AExplanation:
Install the Runtime Class for gVisor
{ # Step 1: Install a RuntimeClass
cat <<EOF | kubectl apply -f -
apiVersion: node.k8s.io/v1beta1
kind: RuntimeClass
metadata:
name: gvisor
handler: runsc
EOF
}
Create a Pod with the gVisor Runtime Class
{ # Step 2: Create a pod
cat <<EOF | kubectl apply -f -
apiVersion: v1
kind: Pod
metadata:
name: nginx-gvisor
spec:
runtimeClassName: gvisor
containers:
- name: nginx
image: nginx
EOF
}
Verify that the Pod is running
{ # Step 3: Get the pod
kubectl get pod nginx-gvisor -o wide
}

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Suggested Answer: A

by Valentine at Jan 13, 2025, 06:47 PM

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Yun

21 days ago

The question is well-written, and the explanation is comprehensive. I'm ready to tackle this on the exam. Although, I do wonder if the Nginx pod will be able to do any cool special effects with the gVisor runtime. Maybe it'll make the Nginx logo spin or something.

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Johnetta

27 days ago

Haha, gVisor, sounds like some kind of superhero sidekick. I bet it can stop a bullet with its bare hands! Alright, let's give this a try and see if my Nginx pod can do some fancy moves too.

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Olen

29 days ago

The steps look clear, but I'm a bit concerned about the gVisor runtime. I haven't worked with it before. I'll need to research more about its capabilities and any potential gotchas.

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2 months ago

I think creating a RuntimeClass named gvisor-rc using runsc is important for security.

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