m/n/c/curator: fix panic caused by race

The starting/stopping of the respective follower/leader implementations
is not synchronized with the state event source. Thus it can happen that
requests get routed to an improper implementation. The follower
correctly rejected requests when the current state indicated that it was
a leader, but panic'ed if it was neither which is a valid state.

Reject requests when it is not a follower, not just if it is a leader.

Change-Id: I5cee85a44cb8a1ce1f4f28c49930abd1d14ac4e1
Reviewed-on: https://review.monogon.dev/c/monogon/+/3782
Reviewed-by: Jan Schär <jan@monogon.tech>
Tested-by: Jenkins CI
1 file changed
tree: 364e0339c662ee9fb005d8072d58c8246a30a40b
  1. .github/
  2. .vscode/
  3. build/
  4. cloud/
  5. go/
  6. intellij/
  7. metropolis/
  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.sum
  24. LICENSE
  25. MODULE.bazel
  26. MODULE.bazel.lock
  27. README.md
  28. SETUP.md
  29. shell.nix
  30. 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.