Feature request: Support running without root

[catern]

If Nix is already installed, there shouldn't be a need to run as root.

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[saschagrunert]

Hey @catern, thank you for the request. Do you want to contribute to this via a PR? :)

[catern]

I don't myself have a need to run Kubernetes - I don't actually know if Kubernetes can even run without root. But I help run a collection of Unix machines where the users have access to Nix but no root; if Kubernix was usable by non-root, they could use it. Just letting you know about this use case (where Nix is available but root is not).

[saschagrunert]

Yeah, there are efforts in rootless Kubernetes, but since CRI-O does not support it right now out of the box we will stick to the root-mode.