Cleanup
Delete the elements that we have deployed in order to go back to normal.
Delete the demo app and the mysql deployment
kubectl delete -f ./deployment/demoapp.yamlkubectl delete -f ./deployment/demoapp-service.yamlkubectl delete -f ./deployment/demoapp-backend.yamlkubectl delete -f ./deployment/demoapp-backend-service.yamlkubectl delete -f ./volumes/3-simple-mysql-deployment.yaml