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NEW QUESTION 24
Get the number of schedulable nodes and write to a file
/opt/schedulable-nodes.txt

• A. kubectl get nodes -o jsonpath="{range
  .items[*]}{.metadata.name}
  {.spec.taints[?(@.effect=='NoSchedule')].effect}{\"\n\"}{end}"
  | awk 'NF==11 {print $0}' > /opt/schedulable-nodes.txt
  // Verify
  cat /opt/schedulable-nodes.txt
• B. kubectl get nodes -o jsonpath="{range
  .items[*]}{.metadata.name}
  {.spec.taints[?(@.effect=='NoSchedule')].effect}{\"\n\"}{end}"
  | awk 'NF==1 {print $0}' > /opt/schedulable-nodes.txt
  // Verify
  cat /opt/schedulable-nodes.txt

Answer: B

NEW QUESTION 25
Score: 4%

Task
Create a persistent volume with name app-data , of capacity 1Gi and access mode ReadOnlyMany. The type of volume is hostPath and its location is /srv/app-data .

Answer:

Explanation:
Solution:
#vi pv.yaml
apiVersion: v1
kind: PersistentVolume
metadata:
name: app-config
spec:
capacity:
storage: 1Gi
accessModes:
- ReadOnlyMany
hostPath:
path: /srv/app-config
#
kubectl create -f pv.yaml

NEW QUESTION 26
Set the node named ek8s-node-1 as unavailable and reschedule all the pods running on it.

Answer:

Explanation:
See the solution below.
Explanation
solution
F:\Work\Data Entry Work\Data Entry\20200827\CKA\19 B.JPG

NEW QUESTION 27
Create 2 nginx image pods in which one of them is labelled with env=prod and another one labelled with env=dev and verify the same.

Answer:

Explanation:
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

NEW QUESTION 28
// Create a configmap
kubectl create configmap redis-config --from-file=/opt/redisconfig
// Verify
kubectl get configmap redis-config -o yaml
// first run this command to save the pod yml
kubectl run redis-pod --image=redis --restart=Always --dry-run
-o yaml > redis-pod.yml
// edit the yml to below file and create
apiVersion: v1
kind: Pod
metadata:
name: redis
spec:
containers:
- name: redis
image: redis
env:
- name: MASTER
value: "true"
ports:
- containerPort: 6379
volumeMounts:
- mountPath: /redis-master-data
name: data
- mountPath: /redis-master
name: config
volumes:
- name: data
emptyDir: {}
- name: config
configMap:
name: example-redis-config

• A. items:
  - key: redis-config
  path: redis.conf
  cf
  // // Verify
  K kubectl exec -it redis - cat /redis-master-data/redis.conf
• B. items:
  - key: redis-config
  path: redis.conf
  cf
  kk kubectl apply -f redis-pod.yml
  // // Verify
  K kubectl exec -it redis - cat /redis-master-data/redis.conf

Answer: B

NEW QUESTION 29
......