무료 온라인 액세스 LinuxFoundation.CKA.v2022-08-21.q57 모의 시험 (Page 7)

CKA 문제 26

Perform the following tasks:
* Add an init container to hungry-bear (which has been defined in spec file
/opt/KUCC00108/pod-spec-KUCC00108.yaml)
* The init container should create an empty file named/workdir/calm.txt
* If /workdir/calm.txt is not detected, the pod should exit

CKA 문제 27

Score: 13%

Task
A Kubernetes worker node, named wk8s-node-0 is in state NotReady. Investigate why this is the case, and perform any appropriate steps to bring the node to a Ready state, ensuring that any changes are made permanent.

CKA 문제 28

Scale the deployment from 5 replicas to 20 replicas and verify

CKA 문제 29

Create an nginx pod with containerPort 80 and it should check the pod running at endpoint / healthz on port 80 and verify and delete the pod.

A. kubectl run nginx --image=nginx --restart=Always --port=80 --
dry-run -o yaml > nginx-pod.yaml
// add the livenessProbe section and create
apiVersion: v1
kind: Pod
metadata:
labels:
run: nginx
name: nginx
spec:
containers:
- image: nginx
name: nginx
ports:
- containerPort: 80
livenessProbe:
httpGet:
path: /healthz
port: 80
restartPolicy: Always
kubectl create -f nginx-pod.yaml
// verify
kubectl describe pod nginx | grep -i readiness
kubectl delete po nginx

B. kubectl run nginx --image=nginx --restart=Always --port=80 --
dry-run -o yaml > nginx-pod.yaml
// add the livenessProbe section and create
apiVersion: v1
kind: Pod
metadata:
labels:
containers:
- image: nginx
name: nginx
ports:
- containerPort: 60
livenessProbe:
httpGet:
path: /healthz
port: 60
restartPolicy: Always
kubectl create -f nginx-pod.yaml
// verify
kubectl describe pod nginx | grep -i readiness
kubectl delete po nginx

CKA 문제 30

Check logs of each container that "busyboxpod-{1,2,3}"

A. kubectl logs busybox -c busybox-container-1
kubectl logs busybox -c busybox-container-3
kubectl logs busybox -c busybox-container-3

B. kubectl logs busybox -c busybox-container-1
kubectl logs busybox -c busybox-container-2
kubectl logs busybox -c busybox-container-3

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