mirror of
https://github.com/cozystack/cozystack.git
synced 2026-11-09 22:13:18 +09:00
Two review findings: - The enablement note claimed the two-phase `transition` flow avoids the count dip when enabling autoscaling on an existing cluster. It does not: helm-controller upgrades with Helm's three-way merge (not SSA), which keys off the old-vs-new manifest diff, not KEDA's live /scale value. At phase 2 the chart stops rendering the staged static count, so the field is deleted (no quorum -> CNPG defaults to 1, a brief collapse) or changed (quorum -> rebased to effectiveMin), then the warm KEDA restores it. Rewrite the docs to state the flow reduces (KEDA is pre-warmed, no cold-start) but does not eliminate the dip, and spell out the suspend + scale-subresource pin that actually makes the handoff dip-free. This is the SSA-vs-three-way-merge handoff the design proposal left for the PoC to settle. - Pin metricType: AverageValue on the Prometheus trigger in cozy-lib.keda.scaledObject. The desired = ceil(query / threshold) identity holds only for an AverageValue external metric; it was relying on KEDA's default. Make it explicit and assert it so a re-vendor or default change cannot silently break the arithmetic. Signed-off-by: Alexey Artamonov <aleksei.artamonov@aenix.io>