Self hosted Kube deploy recipe

[oscar6echo]

As suggested by @frankie567 in discussion 58, this new discussion aims at clarifying how to deploy fief in a kube cluster.

The official doc already contains a docker-compose solution. While this is certainly the most convenient way to deploy a contenairized app locally, kube is likely to be the natural way to deploy it in real life.

This repo is a proposal to do so on a local k3d cluster (fast and free, but routing has pitfalls), so as to ease the path from experimenting to actual deployment.
See https://github.com/oscar6echo/fief-k3d-deploy

Though not strictly related, le me mention that my context for using fief is to serve as an auth service for jupyverse which is compatible with fief. This context is more precisely defined in jupyverse discussion 318, in a conversation with @davidbrochart.