m/n/core/cluster: migrate to events and etcd namespaced client

This moves the status of the cluster manager to use a local event
variable. Watchers (like the node startup code) can now use this to get
updates on the state of the node and its cluster membership in a way
that's more abstracted from a sequential startup. This will permit us to
move a lof othe startup code into code common across different node
lifecycle paths.

Test Plan: Refactor, exercised by e2e.

X-Origin-Diff: phab/D757
GitOrigin-RevId: 31a3600ad2aab90a1e7f84d741e7ea40a0422724
9 files changed
tree: dc96244d0b2922768d7f29431bab2a9ac581a1a6
  1. build/
  2. intellij/
  3. metropolis/
  4. scripts/
  5. third_party/
  6. .bazelignore
  7. .bazelproject
  8. .bazelrc
  9. BUILD
  10. LICENSE
  11. nogo_config.json
  12. README.md
  13. WORKSPACE
README.md

Monogon Monorepo

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

⚠️ This is pre-release software that happens to be publicly available. Nothing to see here, please move along.

Environment

Our build environment requires a working Podman binary (your distribution should have one).

Usage

Spinning up: scripts/create_container.sh

Spinning down: scripts/destroy_container.sh

Running commands: scripts/run_in_container.sh <...>

Using bazel using a wrapper script: scripts/bin/bazel <...> (add to your local $PATH for convenience)

IntelliJ

This repository is compatible with the IntelliJ Bazel plugin, which enables full autocompletion for external dependencies and generated code. All commands run inside the container, and necessary paths are mapped into the container.

The following steps are necessary:

  • Install Google's Bazel plugin in IntelliJ. On IntelliJ 2020.3 or later, you need to install a beta release of the plugin.

  • Add the absolute path to your ~/.cache/bazel-nxt folder to your idea64.vmoptions (Help → Edit Custom VM Options) and restart IntelliJ:

    -Dbazel.bep.path=/home/leopold/.cache/bazel-nxt

  • Set "Bazel Binary Location" in Other Settings → Bazel Settings to the absolute path of scripts/bin/bazel. This is a wrapper that will execute Bazel inside the container.

  • Use File → Import Bazel project... to create a new project from .bazelproject.

After running the first sync, everything should now resolve in the IDE, including generated code.

It's strongly recommend to use our project presets for file watchers and other IDE features. Run this command and re-open the project in order to install them:

bazel run intellij/localconfig $(pwd)

Metropolis

Run a single node cluster

Launch the node:

scripts/bin/bazel run //:launch

Run a kubectl command:

scripts/bin/bazel run //metropolis/cli/dbg -- kubectl describe

Run tests:

scripts/bin/bazel test //...