[public-api] Add kube-rbac proxy container to deployment

[easyCZ]

Description

Adds kube-rbac-proxy to public-api deployment, this allows us to collect metrics using existing prometheus mechanism.

Adds an extra config to be able to choose where the metrics endpoint is on the underlying server.

Related Issue(s)

• Part of Deploy a Hello World server as initial Public API  #9229

How to test

• kubectl get po
• Observe 2 containers in each public-api-server pod
• Both running

Release Notes

NONE

Documentation

NONE

/hold

[easyCZ]

/werft run with-clean-slate-deployment=true

👍 started the job as gitpod-build-mp-public-api-kube-rbac.3

[easyCZ]

/werft run with-vm=true

👍 started the job as gitpod-build-mp-public-api-kube-rbac.4

[easyCZ]

/werft run with-vm=true with-clean-slate-deployment=true

👍 started the job as gitpod-build-mp-public-api-kube-rbac.7
(with .werft/ from main)

[geropl]

@easyCZ Please squash history before marking as "ready for review" 🙏

[easyCZ]

@geropl Thanks for the ping. With sticky reviews, can also be done post review :)

[geropl]

With sticky reviews, can also be done post review :)

True. Still adjusting 🧘

[corneliusludmann]

🚀