tree f1c72c8891fc8cef4c5cbc2826e8ffa63235bc70
parent eca8ee3a89affc200d6056b04a14c4f20fddc91f
author Serge Bazanski <serge@monogon.tech> 1722425014 +0000
committer Serge Bazanski <serge@monogon.tech> 1722952850 +0000

osbase/supervisor: implement Metrics API

This is a base building block for exporting per-DN/runnable status from
the supervisor into an external system. A sample implementation is
provided which can be used in simple debug facilities to inspect the
current supervision tree.

A follow-up change will use the same API to implement Prometheus
metrics.

Change-Id: I0d586b03a397a3ccf8dac2d8043b9dd2f319be4e
Reviewed-on: https://review.monogon.dev/c/monogon/+/3290
Tested-by: Jenkins CI
Reviewed-by: Lorenz Brun <lorenz@monogon.tech>