Unable able to see Pods CPU and Memory Utilization and graphs are missing Kubernetes dashboard

Question

K8s VERSION = v1.18.6

I have deployed the Kubernetes dashboard using the following command and added a privileged user with which I logged into the dashboard.

but not able to see Pods CPU and Memory Utilization graphs are missing Kubernetes dashboard

Answer 1

The Kubernetes Metrics Server is an aggregator of resource usage data in your cluster, To deploy the Metrics Server

Deploy the Metrics Server with the following command:

kubectl apply -f https://github.com/kubernetes-sigs/metrics-server/releases/download/v0.3.6/components.yaml

Verify that the metrics-server deployment is running the desired number of pods with the following command.

kubectl get deployment metrics-server -n kube-system

Output

NAME             READY   UP-TO-DATE   AVAILABLE   AGE
metrics-server   1/1     1            1           6m

Also you can validate by below command:

kubectl top nodes

to see node cpu utilisation if it works, it should then come up in Dashboard as well.

Answer 2

Resource usage metrics are only available for K8s clusters once Metrics Server has been installed.