WIP: Base server for go

[easyCZ]

Description

Introduces a library called baseserver. It is a combination of an HTTP and gRPC server designed to make it dead-easy to get sensible defaults and be able to use a server.

Using a common base server can give us the following benefits:

• Reduced learning curve for each server engineers interact with
• Drive good sensible defaults
• Provide security out of the box
• Provide authentication & authorization out of the box
• Metrics, logging, profiling all out of the box
• Engineers can focus on building services, not servers
• No reason to not write good client-to-server tests as unit tests when standing up a server is so easy

To fulfill the role outlined above, the following will be needed as well. These will be added incrementally as we need them.

• Prometheus metrics server
• gRPC Interceptors
• HTTP Interceptors
• Use k8s health handler
• pprof

Related Issue(s)

Fixes #

How to test

• go test ./...

Release Notes

NONE

Documentation

/uncc
/hold

[csweichel]

We should export this so that we can reuse this config in the installer and component config.

We'd want to pull in pprof and prometheus, too.

[csweichel]

registry-facade and others use a Kubernetes package for their readiness probes. We should re-use that and promote their use rather than rolling our own.

[easyCZ]

Yep, makes sense. The idea here is that when you get a server, it already comes with sensible defaults. What does are is entirely up to us.

[stale]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[easyCZ]

Landed incrementally as part of #9229, closing.