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Attach a HorizontalPodAutoscaler to a Deployment

A 3-step recipe with Kubernetes. We can help you get access.

Recipe · 3 steps

Attach a HorizontalPodAutoscaler to a Deployment

with Kubernetes

Create a HorizontalPodAutoscaler bound to an existing deployment.

  1. Read the deployment the HPA will target. An HPA pointing at a non-existent target is created successfully but never scales anything.
  2. Create the HorizontalPodAutoscaler bound to the deployment by scaleTargetRef, with the supplied replica floor and ceiling.
  3. List the namespace's autoscalers to confirm the HPA is registered and to report the replica counts the controller has computed so far.
What you'll need to have ready
  • namespace: The namespace containing the deployment and the new HPA.
  • deploymentName: The deployment the autoscaler will scale.
  • hpaName: Name for the HorizontalPodAutoscaler resource.
  • minReplicas: Minimum replica count the autoscaler may scale down to.
  • maxReplicas: Maximum replica count the autoscaler may scale up to.
For your developer

Arazzo workflow kubernetes:autoscale-deployment, 3 operations: getNamespacedDeployment → createNamespacedHorizontalPodAutoscaler → listNamespacedHorizontalPodAutoscalers. Specs on APIs.io.

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