fix(canary-rollout): old-release failures no longer block the candidate; evaluate every ring pair independently - #1220
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…e candidate (#1176) The gate's cumulative health counted failures from every ring member since the candidate's cut, including members still running the previous release (they only run the candidate after promotion). A bug in the old release could therefore block the candidate that fixes it indefinitely. _cumulative_health now takes the candidate SHA and attributes each failed run to the release it actually executed (the "Uses: ...@refs/tags/<chan> (<sha>)" line in the run log). Runs provably on another release are reported as informational target-ring health and excluded from cum_fail; if the executed release cannot be determined the failure still counts (fail closed). Blocker evidence skips the same runs so it matches cum_fail. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01MjXPsBTaL6WV9AhCH2ajuv
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Included review availability: This review used your included allowance. Your plan provides up to 1 included review per hour; 0 remain after this review. 📝 SummarySummary by CodeRabbit
WalkthroughCanary failures are attributed to the reusable SHA recorded in each run log. The rollout evaluates each pending adjacent ring transition independently, promotes eligible pairs without skipping tiers, and tracks blocker and confirmation issues per pair. ChangesCanary rollout evaluation and promotion
Priority: ➖ Normal Estimated code review effort: 4 (Complex) | ~45 minutes Change: Bug fix · Severity of issue fixed: Medium Sequence Diagram(s)sequenceDiagram
participant Evaluate as cmd_evaluate
participant Frontier as _frontier_state
participant Pair as _pair_state
participant Health as _cumulative_health
participant Promote as cmd_promote
Evaluate->>Frontier: Request pending pair states
Frontier->>Pair: Evaluate each adjacent transition
Pair->>Health: Calculate health for source candidate
Health-->>Pair: Return blocking and stale counts
Pair-->>Frontier: Return pair state
Frontier-->>Evaluate: Report each pair state
Promote->>Frontier: Snapshot pending pairs
Promote->>Promote: Move eligible destination tags
Merge Risk: 🟡 Moderate · up to A clean history from the previous release can allow a candidate to advance before it has run on its source ring. Resolve that rollout-gate risk before merging. Security Architecture ReviewSecurity architecture risk: 🟡 Moderate · up to Independent promotion preserves ring ordering within one run, but scheduled and manual operations can overlap. Stale promotion decisions could then overwrite a newer release decision or rollback across multiple rings. Deployment privileges are unchanged, and effective production permissions remain unverified. Retained concerns
Security review detailsSecurity Blast Radius
Security Findings and Attack Paths
Trust Boundaries and Controls
Resilience and Maintainability Implications
Hardening Proposals
🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
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Dev-Lead — waiting on PR blockers (intent: review-changes)PR: #1220 |
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Note @don-petry I reviewed this PR and no code changes were needed, but I can't mark it done yet: required check |
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CodeAnt Nitpicks2 code suggestions1. The SHA cache is process-local, but health evaluation and blocker evidence run in separate subshells, so every failed run is fetched again and can hit GitHub rate limits.Performance · 2.
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Code Review
This pull request introduces target-ring health tracking to prevent failures from runs still executing the previous release from blocking a candidate rollout. It adds _run_reusable_sha and _run_is_stale to determine the executed release SHA from GitHub run logs, updates _cumulative_health to track these stale failures separately, and adds corresponding test coverage. Feedback highlights a performance issue where the in-memory cache _RUN_SHA_CACHE is lost across subshells, leading to duplicate slow gh CLI calls. It is recommended to persist the cache to disk using _RUNS_CACHE_DIR and optimize log parsing in-process using native Bash regex matching to avoid spawning multiple subprocesses.
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Actionable comments posted: 2
- 🪄 Fix CodeRabbit comments on this PR
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Inline comments:
Review comments at @scripts/canary-rollout.sh:
- Line 806: Update _run_reusable_sha to use a file-backed cache shared across
command substitutions instead of relying on _RUN_SHA_CACHE shell state. Key
entries by the agent or full reusable identity, and cache unsuccessful lookups
as well as successful SHA results.
- Around line 793-794: Update the reusable-workflow attribution used by
_run_is_stale: match the registry host and complete reusable path, then inspect
every matching resolved SHA instead of selecting the first match. Keep the
failure counted if any call uses the candidate SHA or attribution is ambiguous,
and add mixed-SHA and filename-collision fixtures.
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scripts/canary-rollout.shtests/canary_rollout.bats
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…ocker evidence (#1176) startup_failure runs never execute a job, so they carry no Uses: line and cannot be attributed to a release; they always count (cum_startup). Align blocker evidence with the gate by applying the old-release skip to conclusion=failure only, and document why. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01MjXPsBTaL6WV9AhCH2ajuv
Superseded by automated re-review at
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…he (#1176) - Match the registry host + full reusable path in the run log's Uses: lines (not a filename substring) and inspect every resolved SHA: a run that called the reusable at the candidate SHA, or any ambiguous run, is never treated as old-release. - Persist resolved SHAs in _RUNS_CACHE_DIR so the health pass and blocker-evidence pass (separate subshells) share one log fetch per run; cache failed lookups as empty (counted, fail closed). - Tests: mixed old+candidate SHA blocks; different-host same-name workflow is not attributed. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01MjXPsBTaL6WV9AhCH2ajuv
…ilure attribution (#1176) Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01MjXPsBTaL6WV9AhCH2ajuv
Review — fix requested (cycle 2/3)The automated review identified the following issues. Please address each one: Findings to fixAutomated review — NEEDS HUMAN REVIEWRisk: MEDIUM SummaryBoth reviewers rate the PR MEDIUM risk and escalate, so they agree fully. They converged on the strongest finding: Cross-engine agreementfull Findings
Reviewed by the PR-review cascade (triage: haiku 4.5 [sonnet 5.5, sonnet 5] → deep: opus 5.5 [opus 4.8, sonnet 5.5] + duck: gemini-3.8-flash [sonnet 5.5] → audit: opus 5.5 [opus 4.8, opus 4.7]). Reply if you need a human review. Additional tasks
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Dev-Lead — waiting on PR blockers (intent: fix-reviews)PR: #1220 |
Char-substitution could map distinct (agent, repo, run) keys to one cache file and hand a run another run's SHA, misclassifying a candidate failure as old-release. Hash the key (sha256, substitution only as a last-resort fallback) as _repo_wf_runs_cached does. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01MjXPsBTaL6WV9AhCH2ajuv
Dev-Lead — fix-bot-comment (no-changes)Agent reasoning |
…ributing a run (#1176) Verified against a real `gh run view --log`: lines are '<job>\t<step>\t<ts> <text>', the genuine Uses: line is printed during job setup before any job output, and the step column is often 'UNKNOWN STEP' (so a step-name filter would never match). Trust only the first Uses: line per job; later lines a job merely echoes are ignored. Test fixtures now mirror the real log layout. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01MjXPsBTaL6WV9AhCH2ajuv
Dev-Lead — fix-bot-comment (no-changes)Agent reasoning |
Dismissed at the maintainer's request. Both findings in this review (the source-tier sample vs. old-release attribution, and cmd_sync_promotion_failures hiding a ring1 failure behind a ring0 success) were fixed in 32611a9 and merged in 353cbfa; the current head af2555c is CI-green (349/349 bats). CodeRabbit confirmed the promotion-failure fix and resolved that thread. CodeRabbit cannot clear its own review here (request_changes_workflow is disabled), so this review would otherwise stay open on a superseded commit.
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@donpetry-bot please review this PR at its current head ( Generated by Claude Code |
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…e argument The #1224 ingress-scoping test still used the pre-#1220 four-argument form, so 'org/collapsed' was read as the candidate and the repo list was empty (output '0 0 0 0 0' instead of '1 0 0 0'). Pass the '-' no-candidate sentinel and expect the five-field result; the role-scoping assertion (fail=1, no leak from the other role's 'Push' failure) is unchanged. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01MjXPsBTaL6WV9AhCH2ajuv
…n an ADR-0007 collapsed repo: it resolves runs by per-role workflow NAME, which the ingress replaces with jobs (#1238) * feat: implement issue #1224 — canary-rollout health gate goes blind on an ADR-0007 collapsed repo: it resolves runs by per-role workflow NAME, which the ingress replaces with jobs * fix(bot): address bot feedback [skip ci-relay] * fix(reviews): address review comments [skip ci-relay] * fix(reviews): address review comments [skip ci-relay] * fix(reviews): address review comments [skip ci-relay] * fix(reviews): address review comments [skip ci-relay] * fix(reviews): address review comments [skip ci-relay] * fix(reviews): address review comments [skip ci-relay] * test(canary-rollout): call _cumulative_health with the #1220 candidate argument The #1224 ingress-scoping test still used the pre-#1220 four-argument form, so 'org/collapsed' was read as the candidate and the repo list was empty (output '0 0 0 0 0' instead of '1 0 0 0'). Pass the '-' no-candidate sentinel and expect the five-field result; the role-scoping assertion (fail=1, no leak from the other role's 'Push' failure) is unchanged. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01MjXPsBTaL6WV9AhCH2ajuv * fix(canary-rollout): collapsed-repo job reads no longer hold the gate forever (#1224) pr-review's liveness findings on the ingress attribution: - The CANARY_INGRESS_JOBS_MAX cap marked a fully attributable busy member UNRESOLVED, so a collapsed repo with more than ~21 ingress runs/day sat BLOCKED indefinitely against the 14-day baseline. The cap is now a valid truncated sample for the trailing BASELINE only (it just sizes the sample target): _baseline_daily drops the first unread run's day and older instead of zero-filling them. Gating windows (candidate cut onward) keep the strict fail-closed cap. - Circuit breaker: _run_jobs_json now returns 2 for a permanent 404 and 1 for an exhausted transient failure; the first exhausted 5xx stops reading jobs for that member (UNRESOLVED) instead of burning ~30s of backoff on each of up to 300 runs and outliving the job timeout. - The not-found marker is written before the cached [] so a concurrent strict reader never sees [] without it. Tests: truncated baseline covers only the newest days and is not UNRESOLVED; an uncapped baseline is unchanged; the breaker reads one run, not all. Full tests/canary_rollout.bats passes (380/380); shellcheck clean. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01MjXPsBTaL6WV9AhCH2ajuv * fix(canary-rollout): a truncated baseline is never an empty or all-zero baseline (#1224) cubic P1 on the capped-baseline fix: when the newest day alone has more runs than CANARY_INGRESS_JOBS_MAX, dropping that day left _baseline_daily empty, and _pair_state's waive_sample_if_no_caller reads an all-zero baseline as 'the source tier has no caller' and skips sampling. - Keep the boundary day's partial count when it has observed runs (a lower bound, never a false zero); still drop only the older, unknown days. - If a truncated read observed nothing countable (e.g. the newest runs all belong to other roles), emit a non-zero floor so the pair is never read as 'no caller'; the sample target then sits at its clamp minimum. - A CANARY_INGRESS_JOBS_MAX below 1 would read nothing; use the default. Tests: newest-day-over-cap keeps the partial count; nothing observed gives the non-zero floor. Both fail against the previous commit. Full tests/canary_rollout.bats passes (382/382); shellcheck clean. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01MjXPsBTaL6WV9AhCH2ajuv * test(canary-rollout): drop the /tmp cleanup that never touched this test's flag _ingress_stub exports TMPDIR=$BATS_TEST_TMPDIR, so the UNRESOLVED flag lives under the bats temp dir (cleaned by bats); the /tmp glob could only delete another process's matching file. (CodeRabbit nit.) Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01MjXPsBTaL6WV9AhCH2ajuv * fix(canary-rollout): pre-adoption and job-less cancelled ingress runs no longer hold a member BLOCKED (#1224) pr-review (cycle 1) on the ingress attribution: - A no-role ingress run is no longer unconditionally UNRESOLVED. If the role appears in an OLDER run, a no-role run older than that first appearance predates the role's adoption by the ingress and is benign; one that is not older, or any when no run in the window carries the role at all (ingress_job renamed/misspelled), is still UNRESOLVED (fail closed). - A completed ingress run with no jobs whose conclusion is 'cancelled' (superseded by workflow concurrency before any job started) never executed the role, so it is simply not a record rather than UNATTRIBUTED. Other job-less runs stay UNATTRIBUTED; startup_failure is unchanged. Tests: pre-adoption run ignored; a newer no-role run and a never-carried role stay UNRESOLVED; a job-less cancelled run is not UNRESOLVED. Full tests/canary_rollout.bats passes (386/386); shellcheck clean. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01MjXPsBTaL6WV9AhCH2ajuv * fix(canary-rollout): a failed job can no longer be masked by an action_required job (#1224) pr-review (cycle 3) reproduced a fail-open in the ingress role reduction: failure and action_required ranked equal (6) and jq max_by keeps the last of tied elements, so a failed job followed by an action_required job of the same role reduced the role to action_required. Downstream counters select conclusion=="failure", so the real failure was dropped from cum_fail. failure/timed_out now rank strictly above action_required/startup_failure. Also carries two non-blocking notes from the approving review: - role_oldest is no longer set by a job-less startup_failure (it carries no role job), so with a misspelled ingress_job an older no-role run is not mistaken for a pre-adoption run. - _ingress_note in standards/canary-rings.json now states the cancelled and pre-adoption rules. Tests: failure+action_required stays a failure in either job order; a job-less startup_failure does not date the role's first appearance. Both fail against the previous script. Full tests/canary_rollout.bats passes (388/388); shellcheck clean. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01MjXPsBTaL6WV9AhCH2ajuv * docs(canary-rollout): _ingress_note states the job-less startup_failure exception (#1224) cubic P2: the registry note said any non-cancelled job-less ingress run is UNRESOLVED, but a job-less startup_failure ran no job at all, hits every role, and is recorded as a failure for each (not as a blind member). The note now lists the three not-UNRESOLVED cases: cancelled job-less, startup_failure, and a no-role run older than the role's first appearance. Text only; the registry test and the ingress tests pass. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01MjXPsBTaL6WV9AhCH2ajuv * fix(canary-rollout): legacy signature/decision reads keep their single-call behaviour (#1224) pr-review (cycle 1 on 17344f5), rubber-duck: _run_signature and _run_decision_class used to make ONE 'gh run view' and fail immediately. They were moved onto _run_jobs_json, whose 6-attempt jittered backoff then applied to every repo, collapsed or not; a persistently failing lookup (410 expired logs, 403/rate limit) could cost minutes per run and, called once per run by _suspect_class_counts/_blocker_evidence/_sample_decision_counts, outlive the job timeout. - _run_jobs_json takes an optional attempts cap; the two legacy readers pass 1 (their pre-#1224 behaviour). The ingress reader keeps the bounded retry and its circuit breaker. - The permanent-failure match no longer treats the bare phrase 'not found' as a 404 ('run <id> not found' still does). - The UNRESOLVED blocker remedy now also names CANARY_INGRESS_JOBS_MAX: when the evidence says job reads were capped, registering ingress_job cannot fix it. Tests: the legacy readers make one gh call under STUB_JOBS_FAIL with 6 retries configured (fails against the previous script); the ingress path keeps its bounded retry. Full tests/canary_rollout.bats passes (390/390); shellcheck clean. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01MjXPsBTaL6WV9AhCH2ajuv * perf(canary-rollout): drop the per-run jq re-parse of the ingress payload (#1224) CodeRabbit: the no-role run check re-parsed the whole ingress payload with jq once per no-role run ID (O(n x payload) for up to 300 runs) though each run's createdAt was already in hand. Keep the createdAt values instead and compare them directly. A missing date is stored as '-' so word-splitting cannot drop it: a run with an unknown date still counts as blind (fail closed), exactly as before. No behaviour change; the pre-adoption / role-gap / no-role tests pass. Full tests/canary_rollout.bats passes (390/390); shellcheck clean. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01MjXPsBTaL6WV9AhCH2ajuv * fix(reviews): fail closed when unresolved evidence cannot be persisted; keep empty createdAt as blind Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> * fix(reviews): fail closed on unwritable unresolved flag; per-repo baseline truncation Test-Change-Justification: cubic review on #1238 (PRRT_kwDORyesfc6orgMn) — the chmod 444 append-failure test fails under a root runner; replaced with a printf shim that fails the append independent of file modes. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> * fix(canary-rollout): run limit in runs-cache key; clearer unresolved re-check text; document ingress role requirement (#1224) Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01MjXPsBTaL6WV9AhCH2ajuv * fix(canary-rollout): FLAG_ERROR state line carries all 18 fields; add coverage (#1224) Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01MjXPsBTaL6WV9AhCH2ajuv --------- Co-authored-by: Claude <noreply@anthropic.com>
3 participants
Problem
v139-ring1)._frontier_stateevaluated one transition, for the candidate onnext; any newer cut dropped a pendingring1->stableAWAITING_CONFIRMATIONhold and froze stable. The human go/no-go atring1->stableis deliberate (Enhancement: canary gate should assess correctness, not just run-reliability #668 Layer 3, canary #668 increment 3: opt-in human confirmation at ring1→stable (require_confirmation, dev-lead) #677) and stays.#1176 — attribute failures to the release that ran (
scripts/canary-rollout.sh,tests/canary_rollout.bats)_run_reusable_shacollects the SHAs of this agent's reusable from the run log'sUses: <host>/<reusable>@<ref> (<sha>)lines (host + full path, not a filename substring; only the firstUses:line per job is trusted; verified against a realgh run view --log, where the step column is oftenUNKNOWN STEP). Results are cached in$_RUNS_CACHE_DIRunder a hashed key._run_is_staleis true only when every resolved SHA provably differs from the candidate. Stale failures are tallied as informational target-ring health and excluded fromcum_fail; blocker evidence skips them.Uses:line, a run that also called the candidate, or anystartup_failure(no job ran) → the failure still counts and blocks.#1118 — evaluate every ring pair independently
_pair_state(per-pair gate),_frontier_state(one line per pending pair; ring commits resolved once),cmd_promote(snapshots all pairs: no tier skip;--confirmclears onlyAWAITING_CONFIRMATION; a BLOCKED lower pair never blocks a clean higher pair),cmd_sync_issues/_confirm_body(confirm issue keyed on agent + ring1 candidate, so it persists across newer cuts),_frontier_state_resilient,cmd_evaluate.INCOMPLETEcheckpoint, each fail-closed and tested:--overrideapplies to the lowest pending pair only (it could otherwise push anAWAITING_CONFIRMATIONpair past its human go/no-go); an unresolvable source commit is a pending BLOCKED pair, encoded with a-sentinel (a blank field shifted everyreadfield); an unresolvable lower ring stays in a pair's health scope;cmd_promotenever acts on the-sentinel, even with--override.Test plan
tests/canary_rollout.bats: 346/346 pass (GITHUB_REPOSITORY=petry-projects/.github, as in CI)shellcheck --severity=warning -x scripts/canary-rollout.shcleanRisk
High — this is the release gate for the whole fleet. #1176 only makes the gate less strict for runs positively attributed to an older release; #1118 changes behavior only when more than one pair is in flight (a single candidate keeps its prior output shape).
Rollback
Revert this PR. No state or schema changes. Existing
canary-confirm:<agent>issues are still matched and closed once stale.Monitoring
After merge, watch the next
promote-all/sync-issuesfor dev-lead:target-ring healthnotices instead of TalkTerm blocking ring0→ring1, and aring1->stableAWAITING_CONFIRMATIONline that persists across newautocutcuts with itscanary-confirmissue staying open.🤖 Generated with Claude Code
https://claude.ai/code/session_01MjXPsBTaL6WV9AhCH2ajuv
Generated by Claude Code