Answer: See the solution below.
Explanation:
Solution:
sudo -i
systemctl status kubelet
systemctl start kubelet
systemctl enable kubelet

Answer: 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: devname: 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

Answer: See the solution below.
Explanation:
solution

Answer: See the solution below.
Explanation:
kubectl get po –all-namespaces > /opt/pods-list.yaml

Answer: See the solution below.
Explanation:
kubectl run nginx -image=nginx -restart=Never -env=var1=value1
# then
kubectl exec -it nginx - env
# or
kubectl exec -it nginx - sh -c 'echo $var1'
# or
kubectl describe po nginx | grep value1

Answer: See the solution below.
Explanation:
Solution:
kubectl logs bar | grep 'unable-to-access-website' > /opt/KUTR00101/bar
cat /opt/KUTR00101/bar

Answer: See the solution below.
Explanation:
kubectl run busybox -image=busybox -restart=Never - /bin/sh -c
"sleep 3600"

Answer: See the solution below.Explanation:
Kubect1 get po -o wide
Using JsonPath
kubect1 get pods -o=jsonpath='{range
items[*]}{.metadata.name}{"\t"}{.status.podIP}{"\n"}{end}'