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Document cluster based autoscaling

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katexochen 2022-09-20 09:56:25 +02:00 • committed by Paul Meyer
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docs/docs/getting-started/examples/horizontal-scaling.md
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This example demonstrates Constellation's autoscaling capabilities. It's based on the Kubernetes [HorizontalPodAutoscaler Walkthrough](https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale-walkthrough/). During the following steps, Constellation will spawn new VMs on demand, verify them, add them to the cluster, and delete them again when the load has settled down.
## Requirements
The cluster needs to be initialized with Kubernetes 1.23 or later. In addition, [autoscaling must be enabled](../../workflows/create.md#the-init-step) to enable Constellation to assign new nodes dynamically.
The cluster needs to be initialized with Kubernetes 1.23 or later. In addition, [autoscaling must be enabled](../../workflows/scale.md) to enable Constellation to assign new nodes dynamically.
Just for this example specifically, the cluster should have as few worker nodes in the beginning as possible. Start with a small cluster with only *one* low-powered node for the control-plane node and *one* low-powered worker node.