metropolis: implement node Deletion and framework for Decommissioning

This implements the basic ability to remove nodes from a cluster.

We prepare for a more complex workflow involving multi-sage
decommissioning, but first implement the 'worst case' workflow, in which
a node needs to be deleted if it hasn't been gracefully decommissioned.
This is what we currently need most in practice, as we have node
failures we'd like to deal with.

The Delete functionality is still not fully complete though, as we're
still accepting client certificates from decommissioned nodes. But we'll
fix that in an upcoming CR.

Change-Id: I7322cb1464a9e5bc924363321534033dcc8a6246
Reviewed-on: https://review.monogon.dev/c/monogon/+/2270
Tested-by: Jenkins CI
Reviewed-by: Lorenz Brun <lorenz@monogon.tech>
5 files changed
tree: 7ea30de34d2ed42e2da1c044fb62576464b4e2cc
  1. .github/
  2. build/
  3. cloud/
  4. go/
  5. intellij/
  6. metropolis/
  7. net/
  8. third_party/
  9. tools/
  10. .bazelignore
  11. .bazelproject
  12. .bazelrc
  13. .bazelrc.sandboxroot
  14. .bazelversion
  15. .git-ignore-revs
  16. .gitignore
  17. BUILD.bazel
  18. CODING_STANDARDS.md
  19. go.mod
  20. go.sum
  21. LICENSE
  22. README.md
  23. SETUP.md
  24. shell.nix
  25. 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!

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

Run a single node demo cluster

Build CLI and node image:

bazel build //metropolis/cli/dbg //:launch --config dbg

Launch an ephemeral test node:

bazel test //:launch --config dbg --test_output=streamed

Run a kubectl command while the test is running:

bazel-bin/metropolis/cli/dbg/dbg_/dbg kubectl describe node

Test suite

Run full test suite:

bazel test --config dbg //...