Does Metrics Server Need Requests and Limits?

Problem

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

Environment

• Platform9 Managed Kubernetes - All versions
• Metrics server

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.

Additional Information

https://github.com/kubernetes-sigs/metrics-serverhttps://github.com/kubernetes/autoscaler/tree/master/addon-resizer