Kubernetes In-Place Pod Resizing: Scale CPU & Memory Without Restart
Answer-first: In-Place Pod Resizing (GA in Kubernetes v1.35) allows you to modify CPU and memory requests/limits on running containers without restarting the pod — eliminating cold-start disruptions for AI inference, databases, and stateful workloads. This guide covers requirements, production YAML, VPA integration, cost optimization patterns, and gotchas. Before this feature, changing a container’s resource allocation required deleting and recreating the pod. For a stateful database holding connections, an AI model with 30GB of weights loaded in memory, or a long-running batch job — that restart is catastrophic. In-Place Pod Resize finally decouples resource management from pod lifecycle. ...