The Kubernetes Cluster Autoscaler is a mechanism that automatically adjusts the number of nodes in a cluster to match the resource demands of pending pods. It functions as a cloud infrastructure scaler that manages the desired capacity of scaling groups to ensure sufficient compute resources for workloads.
The system manages cloud infrastructure automation by adjusting node counts when resources are insufficient or nodes are underutilized. It includes a manager for scaling groups using mixed instance policies to balance on-demand and spot instances for cost and availability.
The project also includes a resource optimizer that analyzes pod usage to update CPU and memory requests. Supporting capabilities include automatic node group discovery via metadata tags and internal state capturing for diagnosing scaling logic.
Installation and configuration across different environments are supported via a Helm chart.
