What would you like to be added:

https://github.com/karmada-io/karmada/blob/master/charts/karmada/values.yaml#L378
https://github.com/karmada-io/karmada/blob/master/charts/karmada/values.yaml#L382

We can use this param apiServer.nodePort in values.yaml to fill the server port.
And add HostIP params to values.yaml to set karmada apiserver host.

In this way, user is not need to update the kubeconfig manually.

Why is this needed:

Tracing #3536 (comment)