Repoint bypass watcher healthPath to /health/passthrough - #56
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/health/live is also kubelet's own liveness probe path for the main proxy pod (hardcoded in deployment.yaml, independent of this values.yaml key) - a trivial, dependency-free 200 by design. The watcher needs a richer signal (real dependency health + a per-account bypass toggle), which now lives at /health/passthrough on the proxy (companion PR: ClientProxy). Keeping that off /health/live avoids coupling a config toggle to kubelet's restart decision. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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📝 WalkthroughWalkthroughThe passthrough watcher now polls ChangesPassthrough health monitoring
Estimated code review effort: 2 (Simple) | ~10 minutes Merge Risk: ⚪ Minimal · up to The watcher now uses the passthrough health endpoint and treats a missing endpoint on older images as non-failing, avoiding deploy-order coupling. No actionable merge-blocking risk remains beyond normal checks and review. Poem
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Inline comments:
In `@charts/yuki/values.yaml`:
- Around line 104-114: Before promoting the chart, validate that every target
proxy image supports GET /health/passthrough, or enforce a release-gate rollout
order that guarantees endpoint support before enabling watcher. Preserve the
watcher configuration and its existing failureThreshold behavior.
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charts/yuki/values.yaml
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Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
An old proxy image without /health/passthrough yet answers with 404, not a connection error. Treating that as a real failure force-bypasses accounts still mid-rollout. Now: 200 = success, 404 = skip (neither counter moves), anything else (5xx, timeout, connection refused) = real failure. Removes the chart/image rollout-ordering dependency entirely. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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Inline comments:
In `@charts/yuki/templates/passthrough-watcher-configmap.yaml`:
- Line 105: Update the health-check command assignment in the passthrough
watcher so a failed curl produces exactly one 000 status instead of appending a
second value; ensure the fallback assigns 000 only when curl fails while
preserving the successful HTTP status output.
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charts/yuki/templates/passthrough-watcher-configmap.yaml
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CodeRabbit: curl already writes 000 to stdout on connection failure before exiting nonzero, so `|| echo "000"` appended a second one (000000). Move the fallback outside the substitution so exactly one value is assigned. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Doesn't actually protect old images: yuki-proxy's YARP route is an
unscoped catch-all ({**catch-all}), so a path with no explicit mapping
isn't a clean 404 from the proxy - it gets forwarded to the real
Snowflake/BigQuery backend, which returns whatever it returns. The real
safety mechanism is deployment order (ClientProxy image fleet-wide before
this chart's healthPath change ships), not a status-code special case.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
HEALTH_URL was baked in once at process start, so a ConfigMap change (like #56's /health/live -> /health/passthrough fix) never reached an already-running watcher pod. Re-read healthPath from a file each loop, the same way mode already is, so a values change (or this ConfigMap already having drifted ahead of a stale pod) takes effect within one poll interval — no restart, no checksum annotation needed.
…tart (#58) * Roll passthrough-watcher pod when its ConfigMap changes watch.sh reads mode from a file each loop, but HEALTH_URL is a plain shell variable set once at process start from the ConfigMap-baked script text. A ConfigMap update (e.g. the healthPath fix in #56) never reaches an already-running watcher pod without a restart, so any tenant whose pod predated that fix was silently stuck polling /health/live — which always returns 200 — making both the manual bypass toggle and automatic dependency-outage failover no-ops. Add a checksum/config annotation on the pod template so config changes trigger a real rollout. * Live-reload healthPath instead of forcing a pod restart HEALTH_URL was baked in once at process start, so a ConfigMap change (like #56's /health/live -> /health/passthrough fix) never reached an already-running watcher pod. Re-read healthPath from a file each loop, the same way mode already is, so a values change (or this ConfigMap already having drifted ahead of a stale pod) takes effect within one poll interval — no restart, no checksum annotation needed. * Revert "Live-reload healthPath instead of forcing a pod restart" This reverts commit 257b53d. * Trim checksum annotation comment to one line --------- Co-authored-by: Ari Heber <ariheber@MacBook-Pro-sl-Ari.local>
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passthrough.watcher.healthPath:/health/live→/health/passthrough(ClientProxy companion PR)./health/liveis also kubelet's own liveness path for the main pod — trivial by design, and shouldn't gain a dependency on the bypass toggle.helm lint/helm templateverified locally.proxyChartVersionfor this release until the ClientProxy image serving/health/passthroughis fleet-wide. yuki-proxy's YARP route is an unscoped catch-all ({**catch-all}), so an old image doesn't cleanly 404 on this path — it forwards the probe to the real Snowflake/BigQuery backend instead, which returns whatever it returns. There's no reliable status-code-based way to make this safe across the transition; deployment order is the actual safety mechanism here.