Set up Telegraf inputs.kubernetes on IBM Cloud Kubernetes Free Cluster to monitor ram/cpu usage

Sorry, I’m a beginner. I’m trying to set up Telegraf on a Kubernetes Free Cluster in IBM Cloud. I have a single node cluster and I don’t know if it will work at all. I don’t know how to find out the necessary url kubelet to read the metrics. I am using this plugin: telegraf/plugins/inputs/kubernetes at master · influxdata/telegraf · GitHub Could you please advise me?

I deployed telegraf to kubernetes using helm chart (telegraf 1.8.24 · helm/influxdata), but still don’t know what url with port 10255 for kubelet to take.

Cluster information:

Kubernetes version:
IBM Cloud Free Single node Kubernetes Cluster