Commands:

1. kubectl apply -f filename.yaml

2. To see all resource is running or not: kubectl get all

3. kubectl get pod -o wide

4. Copy the httpddeployment pod IP i.e. 172.17.0.7

5. Now go inside the ubuntu pod

6. And run apt update && apt install curl -y

7. Run "curl 172.17.0.7:80" and you will get output.

8. Run "curl clusterIP:80 i.e. curl 10.104.84.124:80 "

9. Now you hit via the pod IP and it's working

10. But if someone delete the pod or due to any reason the pod terminated

11. Then pod will get new IP and if you hit the command again with old pod IP then it will not give any output

12. Now we copy the Cluster Ip and again go inside the ubuntu pod

13. kubectl exec -it pod/ubuntudeployment-594f56844c-4w6sk -- /bin/bash

14. Now run "curl clusterIP:80 i.e curl 10.104.84.124:80 "

15. It will work same

16. So now we not need to worry about POD IP.