### Search before asking - [x] I had searched in the [issues](https://github.com/ray-project/kuberay/issues) and found no similar feature requirement. ### Description We should not use NodePort for the KubeRay API server by default, as it is not suitable for production. ### Use case _No response_ ### Related issues _No response_ ### Are you willing to submit a PR? - [ ] Yes I am willing to submit a PR!