In this doc https://access.redhat.com/documentation/en-us/red_hat_3scale_api_management/2.11/html/operating_3scale/monitoring-threescale#configuring-prometheus , the step 2: 

To ensure that dashboards and alerts work as expected, you must incorporate Kubernetes metrics, that is, kube-state-metrics, by performing one of the following:
.... 

could we have some commands as samples to guide end users how to federate the prometheus instance with cluster default prometheus instance, as well as the scraping jobs? That would be great for customers to follow.