Instrumentor for Uvicorn server state

[dabico]

Hello! I’ve been working on adding telemetry to my Python applications, and I really appreciate the comprehensive catalog of instrumentation options — it made instrumenting my entire stack straightforward.

I was wondering if there’s interest in adding metrics for uvicorn Server instances. I recently needed to track connection counts and active server tasks to debug some unclosed connection issues, so I wrote a custom UvicornInstrumentor to export them as metrics.

I’m considering opening a PR to share the code and get feedback, with the hope of making a useful contribution. Before doing that, I’d like to start a discussion to validate the idea and understand whether this aligns with the project’s goals.

[ctcjab]

Just chiming in (as a user of opentelemetry python auto-instrumentation) to say I would find this very useful.

@dabico, hopefully a maintainer will say whether a PR would be welcome, but in the meantime, if you have any code to share that implements this (via PR or even just pasted in this thread), that would be awesome.