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>
6 files changed
tree: f1c72c8891fc8cef4c5cbc2826e8ffa63235bc70
  1. .github/
  2. build/
  3. cloud/
  4. go/
  5. intellij/
  6. metropolis/
  7. net/
  8. osbase/
  9. third_party/
  10. tools/
  11. version/
  12. .bazelignore
  13. .bazelproject
  14. .bazelrc
  15. .bazelrc.ci
  16. .bazelrc.sandboxroot
  17. .bazelversion
  18. .git-ignore-revs
  19. .gitignore
  20. BUILD.bazel
  21. CODING_STANDARDS.md
  22. go.mod
  23. go.MODULE.bazel
  24. go.sum
  25. LICENSE
  26. MODULE.bazel
  27. MODULE.bazel.lock
  28. oci.MODULE.bazel
  29. README.md
  30. rust.MODULE.bazel
  31. SETUP.md
  32. shell.nix
  33. third_party.MODULE.bazel
  34. WORKSPACE
README.md

Monogon Monorepo

This is the main repository containing the source code for the Monogon Platform.

This is pre-release software - take a look, and check back later! In the meantime, join us on Matrix (#monogon-os-community:matrix.org) or Discord.

Environment

Our build environment is self-contained and requires only minimal host dependencies:

  • A Linux machine or VM.
  • Bazelisk >= v1.15.0 (or a working Nix environment).
  • A reasonably recent kernel with user namespaces enabled.
  • Working KVM with access to /dev/kvm (if you want to run tests).

Our docs assume that Bazelisk is available as bazel on your PATH.

Refer to SETUP.md for detailed instructions.

Monogon OS

The source code lives in //metropolis (Metropolis is the codename of Monogon OS).

See the //metropolis/README.md for a developer quick start guide, or see the Monogon OS Handbook for user documentation.