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chore(deps): run e2e on Kubernetes 1.37, move go-git v6 to beta.1, and unblock the 0.52.0 release lint - #415
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release-please copies each BREAKING CHANGE footer into CHANGELOG.md verbatim, and the footer of the git_queue_drops_total -> git_queue_refusals_total rename names the old metric. So the 0.52.0 release PR failed lint-metric-names on a line nobody on main wrote. The changelog is history, the same as UPGRADING.md, which was already exempt for exactly this reason. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
…eta.1 - go.opentelemetry.io/otel v1.46.0 -> v1.47.0 (exporters/prometheus v0.69.0) - sigs.k8s.io/controller-runtime v0.25.1 -> v0.25.2 - sigs.k8s.io/kustomize/api, kyaml v0.21.1 -> v0.21.2 - github.com/go-git/go-git/v6, go-billy/v6 alpha.5/alpha.2 -> beta.1 kustomize api v0.21.2 stops panicking on an images: entry whose name is not a valid regular expression; it now treats the name as matching nothing. It also widens the digest suffix of the image-name pattern from sha256 to the OCI digest grammar. imageNamePattern mirrors that pattern, so it follows. The pre-build refusal of an invalid image name stays. Flux's kustomize-controller (v1.9.6) still pins api v0.21.1, so the folder fails to build in production, and an entry that silently matches nothing is never what its author meant. TestBuild_PanicBecomesAnError lost its only panic source with the upstream fix. It now drives the net with a filesystem that panics on read, which no longer depends on a kustomize bug staying unfixed. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
TestWindowTimers_ContinuousActivityStopsAtTheTargetsMaxDuration opened a window with a 20ms maxDuration and asserted it was still open after the first write. The deadline is stamped when the window opens, before the waiting CommitRequests are read. Under a loaded `task test` run that step took longer than 20ms, so the window closed on its first write and the assertion failed (seen once locally; 20/20 green in isolation). The test now opens with an hour, checks the window took it, and moves maxAt into the past before the second write. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
k3s now ships a stable 1.37 (v1.37.1+k3s1 is the `latest` channel), so the e2e cluster moves off 1.36 and both test levels run on 1.37. The README states one version again, and test/e2e/cluster/README.md stops naming the v1.36.1 image it had drifted from. Recorded measurements against 1.36 (the mutation-lab corpus, docs/facts) keep their numbers, because there the number is the observation. Devcontainer tools: kubectl v1.37.1, kustomize 5.8.2, golangci-lint v2.14.0, flux 2.9.6, flux-operator 0.61.0, task v3.54.0, markdownlint-cli2 0.23.3, vale 3.24.0, trivy 0.75.0, and setup-envtest v0.25.2 to match controller-runtime (lint-toolchain-pins). golangci-lint 2.14.0, vale 3.24.0 and markdownlint-cli2 0.23.3 were run against the tree before the bump and report nothing new. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
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📝 WalkthroughWalkthroughThis change updates the Kubernetes end-to-end cluster setup and CI lanes, adds DNS diagnostics for a webhook-related node restart, and updates manifest image matching, tool and dependency versions, and supporting tests and documentation. ChangesKubernetes end-to-end cluster setup
Manifest image matching
Tooling and supporting updates
Priority: ➖ Normal Estimated code review effort: 3 (Moderate) | ~25 minutes Change: Other Merge Risk: 🔵 Low · up to The report’s outdated cluster descriptions may lead readers to reproduce a different setup than the one currently used. This is a localized documentation issue; merging is possible with owner awareness. Security Architecture ReviewSecurity architecture risk: 🔵 Low · up to The assessed changes are confined to end-to-end test infrastructure. No expansion of production access or weakening of audit readiness checks was identified. Cluster reuse and runtime recovery remain only partially validated. Retained concerns Security review detailsSecurity Blast Radius
Trust Boundaries and Controls
Resilience and Maintainability Implications
Hardening Proposals
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✅ Passed checks (4 passed)
Full details: Docstring CoverageExplanation Docstring coverage is 75.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 8 functions across 6 files. (3 skipped: 3 unsupported.) ✨ Finishing Touches 💡 1📝 Generate docstrings 💡
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Review comments at @README.md:
- Line 183: Update the Kubernetes versions statement in the README to use
present-tense active voice, identify the project as performing the tests, and
format the tool identifiers envtest and k3s with backticks.
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.devcontainer/DockerfileREADME.mddocs/bi-directional.mdgo.modhack/metricnames.shinternal/git/commit_window_timers_test.gointernal/manifestanalyzer/kustomize_render.gointernal/manifestanalyzer/kustomize_render_hostile_test.gotest/e2e/cluster/README.mdtest/e2e/cluster/start-cluster.sh
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…g server
The audit webhook setup restarts the k3d server container so kube-apiserver
loads the final webhook config. CI ran every leg single-node, so that
restart brought every pod back at once on a freshly restarted node, and
the manager sometimes came up with cluster DNS dead ("lookup
valkey.valkey-e2e.svc.cluster.local: i/o timeout"). It then stayed 0/1
until the rollout timed out and zero specs ran. On k3s 1.37.1 that hit 4
of 7 restarts; on 1.36.4 it had been seen once.
e2e clusters now run one server and one agent, local and CI alike, with
the server tainted node-role.kubernetes.io/control-plane:NoSchedule. The
manager, Valkey and Gitea run on the agent and ride through the restart
untouched; only the control plane bounces. k3s's own add-ons (CoreDNS,
metrics-server, local-path) tolerate the taint. Checked with a full local
prepare-e2e on 1.37.1: every workload landed on the agent, CoreDNS
included, and the manager pod kept running through the restart (0
restarts) and went straight to audit warm-up.
The local default drops from three agents to one. The three dated from
spreading CPU-heavy pods, but all k3d nodes share the host CPU, so they
bought memory use and startup time rather than capacity. CI drops its
per-leg `k3d_agent_count: "0"` and takes the script default. K3D_AGENT_COUNT=0
still builds a single-node cluster, untainted, since a tainted lone node
would schedule nothing.
When the manager does not recover, the failure dump now also shows nodes,
kube-system pods, CoreDNS logs, and an nslookup from a fresh pod on the
manager's node. That separates CoreDNS being down from pod networking
being broken. The probe runs in kube-system because the manager's namespace
enforces the restricted PodSecurity profile.
docs/ci/k3s-1.37-dns-after-node-restart.md records the investigation.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
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Review comments at @docs/ci/k3s-1.37-dns-after-node-restart.md:
- Around line 15-17: Update the historical cluster-shape descriptions in the
report to make clear that zero-agent CI and the three-agent local default
applied to the recorded failures and reproduction runs, not current
configurations. Revise the references in the CI description, Run 3, and the
reproduction step to use past-tense wording while preserving the original
cluster details.
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The report's summary still described CI as single-node in the present tense. It now says that was the state before the fix, and records the first run after it: all four legs that restart the server recovered, source-cluster included, with no DNS timeouts. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
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Description
A round of upgrades, plus the fix for the lint failure on the 0.52.0 release PR (#414).
The lint failure was not Dependabot
#410 (prometheus/common) was green on every check. The red Lint is on release PR #414, from
lint-metric-names:release-please copies each
BREAKING CHANGEfooter intoCHANGELOG.mdverbatim, and the footer of thegit_queue_drops_total→git_queue_refusals_totalrename (#413) names the old metric. The changelog is history, sohack/metricnames.shnow leaves it out, the same way it already leaves outdocs/UPGRADING.md. Verified against #414's actualCHANGELOG.md:metric names OK: 54 referenced, all registered. #414 needs a rebase or re-run after this merges.Go modules
go-git beta.1 is the one to watch. Unit tests cannot reach every v6 behavior: they missed the
known_hostsandgpgSignenvironment reads, and only e2e caught those. So the e2e legs are what prove this bump. Relevant upstream changes:kustomize api v0.21.2 made two changes we had copied:
images:entry whose name is not a valid regular expression; the name now matches nothing. We still refuse such a folder before the build: Flux's kustomize-controller v1.9.6 pins api v0.21.1, so the folder fails to build in production anyway.TestBuild_PanicBecomesAnErrorlost its only panic source with the upstream fix, so it now drives the recover net with a filesystem that panics on read.sha256.imageNamePatternmirrors upstream, so it follows; the dye matcher now matches e.g.@sha512:digests the way kustomize does.Kubernetes 1.37 end-to-end
k3s now has a stable 1.37 (
v1.37.1+k3s1is thelatestchannel). #337 held e2e on 1.36 only for lack of one. The e2e cluster moves torancher/k3s:v1.37.1-k3s1, and the README states a single version again. Recorded measurements against 1.36 (mutation-lab corpus,docs/facts) keep their numbers.Devcontainer tooling
kubectl v1.37.1, kustomize 5.8.2, golangci-lint v2.14.0, flux 2.9.6, flux-operator 0.61.0, task v3.54.0, markdownlint-cli2 0.23.3, vale 3.24.0, trivy 0.75.0, setup-envtest v0.25.2. setup-envtest has to match controller-runtime, and
lint-toolchain-pinsenforces it. Everything else that has a pin was already current: Go 1.27.1, helm, k3d, kubebuilder, actionlint, hadolint, valkey, cosign, oras, controller-gen, ginkgo, goimports, scc.e2e: one agent, workloads off the restarting server
On 1.37.1 the first CI run lost 3 legs at bring-up. The audit webhook setup restarts the k3d server container, and CI ran single-node, so every pod came back at once on the restarted node. The manager sometimes came up with cluster DNS dead (
lookup valkey.valkey-e2e.svc.cluster.local: i/o timeout) and never went Ready: 4 of 7 restarts on 1.37.1, one recorded case on 1.36.4. Re-runs passed forfull-coreandfull-manager, so it is intermittent. The investigation is indocs/ci/k3s-1.37-dns-after-node-restart.md.e2e clusters now run one server and one agent, local and CI, with the server tainted
node-role.kubernetes.io/control-plane:NoSchedule. The manager, Valkey and Gitea ride through the restart on the agent; only the control plane bounces. A full localprepare-e2eon 1.37.1 put every workload on the agent, CoreDNS included, and the manager kept running through the restart with 0 restarts. The local default drops from 3 agents to 1. The failure dump also gains nodes, kube-system pods, CoreDNS logs and annslookupfrom the manager's node.A flake fixed on the way
TestWindowTimers_ContinuousActivityStopsAtTheTargetsMaxDuration(new in #413) raced a 20msmaxDurationagainst the write that opened the window. The deadline is stamped before the waiting CommitRequests are read, and under a loadedtask testthat took over 20ms. It failed once in the full suite and passed 20/20 alone. The test now rewinds the deadline instead of sleeping past it.Type of Change
Testing
task fmt,task generate,task manifests,task vet: cleantask lintpasses, run with golangci-lint v2.14.0, vale 3.24.0 and markdownlint-cli2 0.23.3 installed locally, so it matches the image this PR buildstask testpassestask test-e2e: not run locally; the CI legs carry it (go-git beta.1 and k3s 1.37 are what they prove)🤖 Generated with Claude Code
Summary by CodeRabbit
Updates
Bug Fixes
sha256are now recognized during manifest analysis.