Pass the Linux Foundation Kubernetes Administrator CKA Questions and answers with ExamsMirror

kubectl get po nginx -o

jsonpath='{.spec.containers[].image}{"\n"}'

Solution:

kubectl top -l name=cpu-user -A

echo 'pod name' >> /opt/KUT00401/KUT00401.txt

kubectl run --generator=run-pod/v1 --image=nginx -- labels=env=prod nginx-prod --dry-run -o yaml > nginx-prodpod.yaml Now, edit nginx-prod-pod.yaml file and remove entries like “creationTimestamp: null” “dnsPolicy: ClusterFirst”

vim nginx-prod-pod.yaml

apiVersion: v1

kind: Pod

metadata:

labels:

env: prod

name: nginx-prod

spec:

containers:

- image: nginx

name: nginx-prod

restartPolicy: Always

# kubectl create -f nginx-prod-pod.yaml

kubectl run --generator=run-pod/v1 --image=nginx --

labels=env=dev nginx-dev --dry-run -o yaml > nginx-dev-pod.yaml

apiVersion: v1

kind: Pod

metadata:

labels:

env: dev

name: nginx-dev

spec:

containers:

- image: nginx

name: nginx-dev

restartPolicy: Always

# kubectl create -f nginx-prod-dev.yaml

Verify :

kubectl get po --show-labels

kubectl get po -l env=prod

kubectl get po -l env=dev

kubectl run nginx --image=nginx --restart=Never --port=80

Solution:

Graphical user interface, text, application Description automatically generated

Text Description automatically generated

Solution:

kubectl describe nodes | grep ready|wc -l

kubectl describe nodes | grep -i taint | grep -i noschedule |wc -l

echo 3 > /opt/KUSC00402/kusc00402.txt

#

kubectl get node | grep -i ready |wc -l

# taints、noSchedule

kubectl describe nodes | grep -i taints | grep -i noschedule |wc -l

#

echo 2 > /opt/KUSC00402/kusc00402.txt

solution

F:\Work\Data Entry Work\Data Entry\20200827\CKA\3 B.JPG

F:\Work\Data Entry Work\Data Entry\20200827\CKA\3 C.JPG

F:\Work\Data Entry Work\Data Entry\20200827\CKA\3 D.JPG

F:\Work\Data Entry Work\Data Entry\20200827\CKA\3 E.JPG

Solution:

#

kubectl get pod big-corp-app -o yaml

#

apiVersion: v1

kind: Pod

metadata:

name: big-corp-app

spec:

containers:

- name: big-corp-app

image: busybox

args:

- /bin/sh

- -c

- >

i=0;

while true;

do

echo "$(date) INFO $i" >> /var/log/big-corp-app.log;

i=$((i+1));

sleep 1;

done

volumeMounts:

- name: logs

mountPath: /var/log

- name: count-log-1

image: busybox

args: [/bin/sh, -c, 'tail -n+1 -f /var/log/big-corp-app.log']

volumeMounts:

- name: logs

mountPath: /var/log

volumes:

- name: logs

emptyDir: {

}

#

kubectl logs big-corp-app -c count-log-1

solution

F:\Work\Data Entry Work\Data Entry\20200827\CKA\19 B.JPG

kubectl get pods --sort-by=.metadata.name