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

As a user I want to be able to pull images from my own hosted registry secured by auth.

To support it currently user needs to manually follow containerd documentation and add certificates.

https://github.com/containerd/containerd/blob/main/docs/cri/config.md#registry-configuration

Describe the solution you would like

Would be great if we introduce k0s config section related to the cri settings which will allow to easy setup certificates for private registry

Describe alternatives you've considered

Manual setup.

Additional context

Request for corresponding guide appeared in the k0s slack channel couple of times.