fix(alerts): make the alert pipeline able to report its own failures - #332
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📝 WalkthroughWalkthroughThe alert pipeline now uses shared asynchronous notification delivery with retry handling and metrics. Collection failures and flatline-check errors reach the alert bell. Worker metrics remove stale series and count parsing errors. Prometheus documentation adds collection and delivery failure alerts. ChangesAlert pipeline observability
Estimated code review effort: 4 (Complex) | ~45 minutes Mergeability Score: 🟡 Moderate · up to The PR improves alert failure reporting, but the current implementation can raise a permanent false alarm for valid empty installations and can remove a newer alert while retrying delivery, potentially suppressing an important notification. These correctness issues should be fixed or explicitly accepted before merging. Possibly related PRs
🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
✨ Finishing Touches 💡 1📝 Generate docstrings 💡
🧪 Generate unit tests (beta)
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Codecov Report❌ Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## main #332 +/- ##
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- Coverage 95.53% 95.43% -0.10%
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Files 51 51
Lines 7007 7060 +53
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+ Hits 6694 6738 +44
- Misses 313 322 +9
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Actionable comments posted: 5
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Inline comments:
In `@app/main.py`:
- Around line 401-403: Update _push_alert and its caller after record_alert to
carry the durable alert identifier or generation token for that delivery, then
make database.clear_alerts match that token so only the originating alert row is
deleted. Remove the broad exception suppression around this deletion so failures
propagate or are logged accurately instead of allowing a false retry message.
In `@app/metrics.py`:
- Around line 212-216: Update the worker heartbeat unparseable counter logic to
use each worker’s stable client_id rather than name as the worker label value,
and adjust the related test fixture expectations accordingly. Keep workers.name
treated as cosmetic.
In `@docs/guides/prometheus-metrics.md`:
- Around line 142-151: Add a metric for the number of collectors attempted
during each collection run, and update the NothingCollected alert expression to
require that metric to be greater than zero in addition to
cashpilot_collection_platforms_scraped being zero. Preserve the existing
behavior for installations with no collectors so the alert does not fire there.
- Around line 153-160: Update the Available Metrics section to document
cashpilot_notify_delivery_total and cashpilot_notify_last_success_timestamp,
including the existing metric descriptions and semantics used by the
AlertDeliveryFailing rule.
In `@tests/test_alert_pipeline_truth.py`:
- Line 20: Replace the hardcoded fallback assigned by CASHPILOT_API_KEY with an
ephemeral test key generated at runtime or require the value from the test
environment, ensuring no credential-like value is committed in the test module.
🪄 Autofix
Fix all unresolved CodeRabbit comments on this PR:
- Push a commit to this branch (recommended)
- Create a new PR with the fixes
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📒 Files selected for processing (6)
app/main.pyapp/metrics.pydocs/guides/prometheus-metrics.mdtests/test_alert_pipeline_truth.pytests/test_beads_batch_21.pytests/test_beads_batch_25.py
Audit fallout from the 42-hour incident, all findings verified before fixing, the worst one proven by execution: - A collection run in which EVERY collector fails was recorded as a SUCCESS. _collect_bounded converts exceptions into EarningsResult errors, so the run-level failure branch was unreachable — the success timestamp refreshed hourly through a total outage and both documented Prometheus alerts (CollectionFailing, EarningsStale) were structurally unable to fire. A total outage is now result=error; a partial failure stays a success so one chronically broken collector cannot freeze the staleness stamp and false-alarm past fourteen healthy ones. - The dedupe row is committed BEFORE delivery is attempted and the delivery result was thrown away: ntfy unreachable in the minute a collector broke meant one WARNING in a container log and 24 silent hours. Pushes now go through _push_alert, which clears the stored row on total delivery failure (so the next cycle retries, bounded to once per cycle) and feeds a cashpilot_notify_delivery_total metric either way — dead delivery is now visible instead of indistinguishable from health. - A default install has no push channel and nothing ever said so; the startup log now warns beside the setup token when notify is unarmed. - Payout prompts were recorded and belled but never pushed — the only alert that asks a QUESTION waited for someone to open the UI. The record_alert gate was already there; its boolean just went unread. - The payout retire path cleared the bell in memory even when the durable delete failed, letting the two stores diverge on a financial record; and the platform lookup swallowed DB errors so an answered prompt could silently stay forever. - The flatline check's own failure rendered as 'nothing is flatlined'; it now reports its own outage to the bell. - Metrics hygiene: per-worker gauges are cleared each refresh (a removed worker kept publishing forever), an unparseable heartbeat timestamp is counted instead of silently vanishing from the series the WorkerOffline rule watches, and the docs now say the whole alert section requires CASHPILOT_METRICS_ENABLED=true. 18 new tests incl. negative controls for every mechanism; the success flag fix is mutation-verified. Full suite 4682 passed, cov 95.64%.
…r false-alarm Review round on #332: - record_alert returns the inserted row's id (None when deduped — every truthiness check keeps its meaning), and a failed delivery un-dedupes by deleting exactly THAT row via delete_alert(id). Clearing by (kind, subject) could race a recovery-plus-fresh-failure that inserted a newer row mid-flight and take its dedupe with it, double-notifying. A deletion failure is now reported as 'waits out the cooldown' instead of a false 'will retry'. - cashpilot_collection_collectors_configured gauge: the NothingCollected rule now requires attempted collectors > 0, so a valid empty install cannot alert forever on scraped == 0. - The unparseable-heartbeat counter is labeled by client_id (a recreate changes the hostname and would split the series). - Both notify metrics documented in the Available Metrics table. Declined (answered on-thread): removing the module-level CASHPILOT_API_KEY setdefault — it is the suite-wide import fixture used by every test module, not a live credential; diverging one file adds inconsistency without removing any secret.
The #331 site merged using bare notify.send; now that both layers are on one branch it goes through _push_alert with its ownership id, so a failed worker-offline push retries on the next sweep instead of being silently deduped for the cooldown window.
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… 503 Review round on #333: - The external-container list in get_status swallowed its failure and returned partial results with the availability flag still true — external deployments read as DOWN instead of Docker-blind. Both list calls now flag the outage and return []; and the same pair of holes existed wholesale in get_status_light, so it got the identical treatment (the mirror of the mirror). - available_runtimes distinguishes 'daemon unreachable' (None -> 503 at both callers) from 'no such runtime installed' (set() -> 400): the collapse told the operator to fix their runtime choice when the fix was the daemon. The probe uses its own 5s-timeout client — the shared client keeps the SDK's long default because deploys legitimately take minutes — and closes it on every path. - docker_available's probe client is closed even when ping raises. Two pre-existing tests pinned the partial-results contract and were updated to blind-not-partial with the reasoning in comments; runtime tests now pin the None/503 vs set()/400 split, the probe timeout, and the client close. Full suite 4705 passed, coverage 95.54%. Declined (answered on-thread): replacing the suite-wide test key fixture, same reasoning as #332.
* fix(worker): a worker that cannot see Docker now says so Three verified findings from the invisible-failure audit: - Docker dying MID-LIFE was a logger.debug — invisible at the default INFO level. The worker silently degraded to monitor-only, every deploy 503'd, and docker logs held no reason at all. The True->False transition now warns once (and only the mid-life transition: startup discovering a monitor-only worker stays quiet, lifespan already announces the mode), and recovery is announced. - 'Ping works, list fails' (daemon 500, read timeout, containerd hiccup) escaped get_status entirely: the heartbeat shipped containers=[] WITH docker_available=true, so the worker looked online and deliberately empty while the UI wrote a durable check_down every 5 minutes for each deployment it could no longer see — the exact false-downtime regression the health-check guard exists to prevent, reintroduced through a flag that could lie. The enumeration failure now flips the availability memo so the SAME heartbeat reports blind. - The deploy route ran _validate_deploy_spec unthreaded, and its runtime validation does a live Docker round-trip (available_runtimes has no cache, no timeout, and builds a fresh client per call): a wedged daemon blocked the whole event loop — including /api/health, flipping the container unhealthy because an unrelated route was stuck. Threaded via to_thread like every sibling Docker touch; HTTPException propagates unchanged. 7 tests incl. negative controls (startup quiet, first success silent, healthy list keeps the flag). The threading test measures event-loop ticks DURING the call and is mutation-verified — its first version measured a later window and could not fail; the docstring records that lesson. Full suite 4671 passed, coverage 95.75%. * fix(worker): no partial Docker answers, bounded runtime probe, honest 503 Review round on #333: - The external-container list in get_status swallowed its failure and returned partial results with the availability flag still true — external deployments read as DOWN instead of Docker-blind. Both list calls now flag the outage and return []; and the same pair of holes existed wholesale in get_status_light, so it got the identical treatment (the mirror of the mirror). - available_runtimes distinguishes 'daemon unreachable' (None -> 503 at both callers) from 'no such runtime installed' (set() -> 400): the collapse told the operator to fix their runtime choice when the fix was the daemon. The probe uses its own 5s-timeout client — the shared client keeps the SDK's long default because deploys legitimately take minutes — and closes it on every path. - docker_available's probe client is closed even when ping raises. Two pre-existing tests pinned the partial-results contract and were updated to blind-not-partial with the reasoning in comments; runtime tests now pin the None/503 vs set()/400 split, the probe timeout, and the client close. Full suite 4705 passed, coverage 95.54%. Declined (answered on-thread): replacing the suite-wide test key fixture, same reasoning as #332.
1 participant
Why
The audit that followed the 42-hour incident asked one question of every signal path: can this check fail for the failure you actually have? The alert pipeline itself flunked it four ways, and the worst was proven by execution, not inference: a collection run in which every collector fails is recorded as a success —
_collect_boundedconverts exceptions intoEarningsResult.error, so the run-level failure branch is unreachable,collection_last_success_timestamprefreshes hourly through a total outage, and both Prometheus alerts the docs tell operators to deploy (CollectionFailing,EarningsStale) are structurally dead.What
result="error"and does not refresh the success timestamp. A partial failure stays a success — one chronically broken collector must not freeze the staleness stamp and false-alarm past fourteen healthy ones, and an empty install has nothing to be stale about. Mutation-verified._push_alertnow clears the stored row on total delivery failure (next cycle retries, bounded to once per cycle) and recordscashpilot_notify_delivery_total/notify_last_success_timestampeither way, so dead delivery is visible to Prometheus instead of indistinguishable from health.app/ever consultednotify.is_enabled(); the startup log now warns beside the setup-token block.record_alertgate was already written; its boolean went unread.WorkerOfflinerule watches; docs now state the whole alert section requiresCASHPILOT_METRICS_ENABLED=true, and gainedNothingCollected+AlertDeliveryFailingrules.Testing
tests/test_alert_pipeline_truth.pywith a negative control per mechanism (partial failure stays success, empty install not stale, successful delivery keeps the dedupe, unconfigured install doesn't churn, deduped/pending payouts don't push, healthy flatline adds nothing, fresh gauges survive).node --checkclean.Summary by CodeRabbit
New Features
Bug Fixes
Documentation