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Does Metrics Server Need Requests and Limits?

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Problem

The metrics server deployment has requests and limits set for the metrics-serverpod. Does it need the guaranteed resources assigned to it?

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Environment

  • Platform9 Managed Kubernetes - All versions

  • Metrics server

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Answer

Yes, these are the base requirements for the metrics-server container to start. Along with the metrics-server container, there is a sidecar container that runs within the deployment. This sidecar container (metrics-server-nanny) is responsible for vertical autoscaling as and when the cluster grows.

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Additional Information

https://github.com/kubernetes-sigs/metrics-serverarrow-up-righthttps://github.com/kubernetes/autoscaler/tree/master/addon-resizerarrow-up-right

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