I am getting below error while trying to apply patch :
core@dgoutam22-1-coreos-5760 ~ $ kubectl apply -f ads-central-configuration.yaml
Warning: kubectl appl
It seems likely that your yaml configurations were copy pasted from what was generated, and thus contains fields such as creationTimestamp, which don't belong in a declarative configuration file.
Go through your yaml and clean it up. Remove things that are instance specific. Your final yaml should be simple enough that you can easily understand it.