Metrics Server

Deploy a Metrics Server for autoscaling capabilities.

Requirements

An EKS cluster is provisioned.
The cluster is connected and the kubeconfig is properly configured.

Run the following command to connect a local environment to the EKS cluster.

aws eks update-kubeconfig --region <region> --name <cluster-name>

Installing the Component

cd helm/metrics-server
helm repo add metrics-server https://kubernetes-sigs.github.io/metrics-server || true
helm repo update
helm dependency build
helm install metrics-server . \
  --namespace kube-system \
  --create-namespace

For any custom configuration changes, create a values-override.yaml file and add -f values-override.yaml to the helm install command. It is not recommended to modify the configurations in the values.yaml file.

Verifying the Installation

Check that the Metrics Server deployment is ready:

kubectl get deployment metrics-server -n kube-system

Sample output.

NAME             READY   UP-TO-DATE   AVAILABLE   AGE
metrics-server   1/1     1            1           ...

Run the following command to verify that node metrics are available.

kubectl top nodes

Uninstalling the Component

Run the following command to uninstall the Metrics Server:

helm uninstall metrics-server \
  --namespace kube-system