Check to see how many worker nodes are ready (not including nodes tainted NoSchedule) and write the number to /opt/KUCC00104/kucc00104.txt.

Correct Answer:

See the solution below.
Explanation
solution

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Fix a node that shows as non-ready

• A.Kubectl get nodes
  // Check which node shows a not ready
  kubectl describe nodes "node-name"
  // Login to the node which shows as not ready and check the
  process for kubelet, docker , kube-proxy.
  // systemctl status kubelet (or) ps -aux | grep -i "processname"
  // If the process is not started, then start using
  systemctl start kubelet / docker
  // Verify
  ps -auxxww | grep -i "process-name"
  kubectl get nodes
• B.Kubectl get nodes
  // Check which node shows a not ready
  kubectl describe nodes "node-name"
  // Login to the node which shows as not ready and check the
  systemctl start kubelet / docker
  // Verify
  ps -auxxww | grep -i "process-name"
  kubectl get nodes

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Create a deployment as follows:
* Name:nginx-random
* Exposed via a servicenginx-random
* Ensure that the service & podare accessible via theirrespective DNS records
* The container(s) within anypod(s) running as a part of thisdeployment should use thenginxImage Next, use the utilitynslookupto lookup the DNS records of the service &pod and write the output to
/opt/KUNW00601/service.dnsand/opt/KUNW00601/pod.dnsrespectively.

Correct Answer:

See the solution below.
Explanation
Solution:

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Delete the above pod and create again from the same yaml file
and verifies there is no "test-file.txt" in the path /data/redis
(Since non-persistent storage "emptyDir" is used).

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Create an nginx pod which loads the secret as environment variables

• A.// create a yml file
  kubectl run nginx --image=nginx --restart=Never --dry-run -o
  yaml > nginx.yml
  // add env section below and create
  vim nginx.yaml
  apiVersion: v1
  kind: Pod
  metadata:
  labels:
  run: nginx
  name: nginx
  spec:
  containers:
  - image: nginx
  name: nginx
  envFrom:
  - secretRef:
  name: my-secret
  restartPolicy: Never
  kubectl apply -f nginx.yaml
  //verify
  kubectl exec -it nginx - env
• B.// create a yml file
  kubectl run nginx --image=nginx --restart=Never --dry-run -o
  yaml > nginx.yml
  // add env section below and create
  vim nginx.yaml
  run: nginx
  name: nginx
  spec:
  containers:
  - image: nginx
  name: nginx
  envFrom:
  - secretRef:
  name: my-secret
  restartPolicy: Never
  kubectl apply -f nginx.yaml
  //verify
  kubectl exec -it nginx - env

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