Scrap control plane

I have a Rancher installation and the entire Kube-Prometheus stack was installed from outside and not through the Rancher console, because the monitoring stack was consuming a lot of resources through Rancher. Anyway, I installed the stack and was able to monitor everything, except for some components such as kube-scheduler, kube-proxy and kubecontrollermanager. I saw that Rancher uses pushprox to monitor these components. I even found a chart that Rancher itself provides, but I didn't understand how to monitor these components using the same helm chart and even seeing the official documentation here, I found it very superficial. can anybody help me?

Start with the official PushProx documentation and the Helm chart provided by Rancher, then compare their guidance with the kube-scheduler, kube-proxy, and kube-controller-manager monitoring requirements described here. Done means documenting a clear installation and configuration path for monitoring those components outside the Rancher console.