test(e2e): decouple reap_old_logs from the stage retry budget - #489
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Included review availability: Your plan includes up to 12 reviews per rolling hour; 10 remain after this review. 📝 WalkthroughWalkthroughThe test now creates seven timestamped seed logs before operator execution. The script no longer waits for five logs before succeeding. The test verifies that five logs remain and that the current attempt’s Estimated code review effort: 2 (Simple) | ~10 minutes Merge Risk: ⚪ Minimal · up to This PR updates the end-to-end test to avoid dependence on retry limits and adds coverage for log trimming; no actionable merge-blocking risk remains beyond normal checks and review. Suggested reviewers: 🚥 Pre-merge checks | ✅ 4✅ Passed checks (4 passed)
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Inline comments:
In `@k8s-tests/operator-agent/reap_old_logs/chainsaw-test.yaml`:
- Around line 47-48: Update the seed-file creation command in the reap-old-logs
Chainsaw test to use the production log filename prefix and .log suffix
recognized by CleanupOldLogs, with timestamps older than the current attempt;
ensure the seeded files are eligible for cleanup so the subsequent count is 5.
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k8s-tests/operator-agent/reap_old_logs/chainsaw-test.yamlk8s-tests/operator-agent/reap_old_logs/nodewright.yaml
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Coverage Report for CI Build 32068522021Warning Build has drifted: This PR's base is out of sync with its target branch, so coverage data may include unrelated changes. Coverage decreased (-0.04%) to 79.111%Details
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The test drove log accumulation by failing on purpose until five log files existed, which only worked while a failing package was retried without bound. Package stages now run under a finite Job backoffLimit (JOB_BACKOFF_LIMIT, default 3), so a stage gets four attempts and can produce at most four logs. The script asks for five, so it parked at erroring and the assert timed out. Agent CI only triggers on agent/**, so it never ran on the operator-only Jobs migration and this surfaced on the next unrelated PR that touched agent/. Seed the surplus logs in setup instead and let the package succeed on its first attempt. The reaper trims to five either way, but nothing in the test now depends on how many attempts a failing stage gets. This is also the first version of the test that reaches the trim path: the old script exited 0 at exactly five logs, so log_files[5:] was always empty and nothing was ever reaped. The surviving-log grep pins the direction of the trim, since one attempt writes four logs and only the apply step echoes, making it the oldest of the four. Verified against a kind cluster with agent v6.4.2: the full operator-agent suite passes, reap_old_logs in 30s against the 486s failure in CI. Signed-off-by: Brian Lockwood <lockwobr@gmail.com>
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Description
closes #488
chainsaw/reap-old-logs-agent-operatorfails on every run. The test drove log accumulation by failing on purpose until 5 log files existed, which only worked while a failing package was retried without bound. Package stages now run under a finite JobbackoffLimit(JOB_BACKOFF_LIMIT, default 3), so a stage gets 4 attempts and can produce at most 4 logs. It asks for 5, so it parks aterroringand both asserts time out.The operator is behaving as designed here; the bounded budget is intentional and already documented in
operator/RELEASE_NOTES.md. This is a stale test, not an operator regression, and nothing in this PR changes operator behaviour.It went unnoticed because Agent CI only triggers on
agent/**, so it never ran against the operator-only Jobs migration (#459). The last green Agent CI run was 2026-08-07; the failure appeared on the next PR that happened to touchagent/.What changed
The test no longer depends on how many attempts a failing stage gets.
nodewright.yaml—apply.shsucceeds on the first attempt instead of crash-looping.chainsaw-test.yaml— a setup step seeds 7 surplus.logfiles on the node, and the final step asserts what survived.Counting survivors rather than naming them is what lets the seeds share an mtime second, which leaves their order among themselves arbitrary.
ls -rtmeans a failure prints the set in the order the reaper judged it.This is the first version of the test that reaches the trim path
The old script exited 0 at exactly 5 logs, so
cleanup_old_logs'log_files[5:]slice was always empty and nothing was ever reaped. The behaviour the test is named for has never been covered until now.The surviving-log grep also pins the direction of the trim, which the count alone would pass either way: one attempt writes 4 logs (apply and config, each with its check step) and only the apply step echoes, making it the oldest of the four. Finding it among the survivors proves the reaper counted from the newest end.
Agent CI could not see this suite
agent-ci.yamlis the only workflow that runsoperator-agent-tests, but its path filters did not includek8s-tests/operator-agent/**. As opened, this PR fixed a test that CI would not run. Both thepull_requestandpushfilters now include that directory, so the suite is exercised whenever it changes.This narrows the blind spot rather than closing it: the original break came from an operator-only change (#459), and Agent CI still does not watch
operator/**. That is a CI-budget call worth its own issue rather than a release-eve change.Review follow-up
CodeRabbit flagged the seed filenames. Its stated failure mode does not apply to the Python agent this suite runs (that reaper sorts by mtime and never parses the name, which three green local runs confirm), but the concern is real for the Go agent in
agent/go/internal/flags/logs.go, which skips logs whose timestamp will not parse and which #221 plans to point at this suite. Seeds now carry real timestamps, so they reap correctly under either ranking. Details on the thread.Verification
Full
operator-agent-testssuite against a local kind cluster,AGENT_IMAGE=ghcr.io/nvidia/nodewright/agent:v6.4.2:30s against the 486s failure in CI.
yamllint -c ci/yamllint.yamlclean.The assertions were confirmed to bite rather than pass vacuously: an intermediate revision failed on a wrong expected count (
Data: 1, Check: ^4$), which is how the 4-logs-per-attempt behaviour was found.Found while here, not fixed
The agent writes stderr to
{log_path}.err(controller.py:260), butcleanup_old_logsglobs{step}-*.log, which can never match a name ending in.err. Nothing else deletes them, so they accumulate one per attempt forever on every node. Unrelated to this test and left for its own issue.Checklist
git commit -s) per the DCO.