Kubernetes HPA Generator

Generate a HorizontalPodAutoscaler

A HorizontalPodAutoscaler, or HPA, automatically adjusts the number of pod replicas in a deployment based on observed load, scaling up under heavy demand and down when it eases. This generator produces an HPA manifest using the current autoscaling API version. You specify the target deployment, the minimum and maximum replica counts, and a target average CPU utilisation, and the tool creates a manifest that keeps CPU usage near your target by changing the replica count.

For example, targeting seventy percent CPU means the autoscaler adds pods when average CPU rises above that and removes them when it falls below.

Automatic scaling

Autoscaling helps applications handle variable traffic efficiently, maintaining performance during spikes without permanently over-provisioning. The HPA requires the metrics server to be installed so it can read CPU usage, and the target deployment must declare CPU resource requests, since utilisation is measured relative to the request. Setting sensible minimum and maximum bounds prevents scaling to zero or runaway scaling.

This manifest scales on CPU; the autoscaling API also supports memory and custom metrics for more advanced setups. Review the manifest and apply it. All generation happens locally in your browser.

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