More procedure about role swapping

[stevefan1999-personal]

Is your feature request related to a problem? Please describe.

I have a controller+worker node that is overwhelmed and want it to be served as controller only. Right now, I have to risk destroying the cluster again for that to work out.

Describe the solution you would like

Give us a more comprehensive procedure about how to swap roles

Describe alternatives you've considered

Just keep it as is, but forcefully taint that specific node with NoExecute

Additional context

No response