Cluster autoscaler
The cluster autoscaler is the Kubernetes component that adds nodes (servers) when workloads cannot fit and removes nodes that are underused. Scaling workloads down saves money only once it removes the emptied nodes. Why it matters: Nodes are what the cloud bills for, so this is where Kubernetes savings actually reach the bill.
Read the term in context.
Each row is a lesson that uses this term. The lesson where it first appears is the canonical definition.