Elastic Pod CPU Auto-Scaler (EPCAS): An Open-Source Kubernetes Operator for Restart-Free Vertical CPU Scaling With Typed-Refusal Semantics
Kubernetes 1.35 stabilized in-place Pod resource resizing, but a deployable controller must avoid duplicate actuation, decline infeasible changes safely, and make blocked actions distinguishable from controller failure. This paper presents Elastic Pod CPU Auto-Scaler (EPCAS), an open-source operator for restart-sensiti...