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NEW QUESTION 29
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:
See the solution below.
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 30
Create a pod with init container which waits for a service called "myservice" to be created. Once init container completes, the myapp-container should start and print a message "The app is running" and sleep for 3600 seconds.

• A. vim multi-container-pod.yaml
  apiVersion: v1
  kind: Pod
  metadata:
  name: myapp-pod
  labels:
  app: myapp
  spec:
  containers:
  - name: myapp-container
  image: busybox:1.28
  command: ['sh', '-c', 'echo The app is running! && sleep
  3600']
  initContainers:
  - name: init-myservice
  image: busybox:1.28
  command: ['sh', '-c', "until nslookup myservice.$(cat
  /var/run/secrets/kubernetes.io/serviceaccount/namespace).s
  vc.cluster.local; do echo waiting for myservice; sleep 2;
  done"]
  // Check whether service called "myservice" exists
  kubectl get svc
  Note: Pod will not start if service called "myservice" doesn't
  exist.
  // Now, Create the pod
  kubectl apply -f multi-container-pod.yaml
• B. vim multi-container-pod.yaml
  apiVersion: v1
  kind: Pod
  metadata:
  name: myapp-pod
  labels:
  app: myapp
  spec:
  containers:
  - name: myapp-container
  image: busybox:1.28
  command: ['sh', '-c', 'echo The app is running! && sleep
  3600']
  initContainers:
  - name: init-myservice
  done"]
  // Check whether service called "myservice" exists
  kubectl get svc
  Note: Pod will not start if service called "myservice" doesn't
  exist.
  // Now, Create the pod
  kubectl apply -f multi-container-pod.yaml

Answer: A

NEW QUESTION 31
Given a partially-functioning Kubernetes cluster, identify symptoms of failure on the cluster.
Determine the node, the failing service, and take actions to bring up the failed service and restore the health of the cluster. Ensure that any changes are made permanently.
You can ssh to the relevant I nodes (
[student@node-1] $ ssh <nodename
You can assume elevated privileges on any node in the cluster with the following command:
[student@nodename] $ | sudo -i

Answer:

Explanation:
See the solution below.
Explanation
solution
F:\Work\Data Entry Work\Data Entry\20200827\CKA\23 C.JPG

F:\Work\Data Entry Work\Data Entry\20200827\CKA\23 D.JPG

F:\Work\Data Entry Work\Data Entry\20200827\CKA\23 E.JPG

NEW QUESTION 32
......