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1. Create a namespace called ‘development’ and a pod with image nginx called nginx on this namespace.

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Solution:
kubectl create namespace development
kubectl run nginx –image=nginx –restart=Never -n development

2. Get list of all pods in all namespaces and write it to file “/opt/pods-list.yaml”

Solution:
kubectl get po -all-namespaces > /opt/pods-list.yaml

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3. Create a pod with image nginx called nginx and allow traffic on port 80

Solution:
kubectl run nginx –image=nginx –restart=Never –port=80

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4. Create a busybox pod that runs the command “env” and save the output to “envpod” file

Solution:
kubectl run busybox –image=busybox –restart=Never –rm -it — env > envpod.yaml

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5. List pod logs named “frontend” and search for the pattern “started” and write it to a file “/opt/error- logs”

Solution:
Kubectl logs frontend | grep -i “started” > /opt/error-logs

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6. Create a pod that echo “hello world” and then exists. Have the pod deleted automatically when it’s completed

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Solution:
kubectl run busybox –image=busybox -it –rm –restart=Never — /bin/sh -c ‘echo hello world’
kubectl get po # You shouldn’t see pod with the name “busybox”

7. Create a pod with environment variables as var1=value1.Check the environment variable in pod

Solution:
kubectl run nginx –image=nginx –restart=Never –env=var1=value1 # then
kubectl exec -it nginx — env

kubectl exec -it nginx — sh -c ‘echo $var1’

kubectl describe po nginx | grep value1

8. Get list of all the pods showing name and namespace with a jsonpath expression.

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Solution:
kubectl get pods -o=jsonpath=”{.items[*][‘metadata.name’ , ‘metadata.namespace’]}”

9. Check the image version in pod without the describe command

Solution:
kubectl get po nginx -o
jsonpath='{.spec.containers[].image}{“\n”}’

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10. List the nginx pod with custom columns POD_NAME and POD_STATUS

Solution:
kubectl get po -o=custom-columns=”POD_NAME:.metadata.name, POD_STATUS:.status.containerStatuses[].state”

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