m/n/core/consensus: log etcd into sub-DN and wait for DNS resolvability

This lets us distrnguish between things that etcd logs (which is often
extremely verbose) what our own consensus service says.

It also makes the consensus service wait for DNS resolvability before
attempting to join an existing cluster, which makes etcd startup much
cleaner (as etcd will itself crash if it cannot immediately resolve its
ExistingPeers in startup).

Change-Id: Icc6a5a40fc56733cc24ccd88af0a73feba4f6922
Reviewed-on: https://review.monogon.dev/c/monogon/+/1356
Tested-by: Jenkins CI
Reviewed-by: Lorenz Brun <lorenz@monogon.tech>
1 file changed
tree: 16127799671c8aaf6ee3bb2548bc8579fd1d719b
  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. 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
  • 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 -c dbg

Launch an ephemeral test node:

bazel test //:launch -c 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 -c dbg //...