Refactoring to become more terraformic

[janfrederik]

Going through the code, I see most of the magic is done using provisioners (file, remote-exec, ...). Following the terraform mindset (and documentation), these constructs should only be used as a last resort.

Is there a reason?

At first sight, it seems to me that at least everything that is installed inside kubernetes (once the first control plane is up), could be created and configured using official and/or widespread used providers, like the kubernetes, helm, kubectl or kustomization providers. This would make the resource lifecycle if not more reliable, then at least more clear.