Description of problem: It is already possible to configure remote write for user-defined monitoring to push metrics outside of the cluster but in some cases, the network flow can only go from the outside to the cluster and not the opposite. This makes it impossible to leverage remote write. It is already possible to use the /federate endpoint for the platform Prometheus (via the internal service or via the OpenShift route) so not supporting for UWM doesn't provide a consistent experience. If we don't expose the /federate endpoint for the UWM Prometheus, users would have no supported way to store and query application metrics from a central location. Version-Release number of selected component (if applicable): How reproducible: Steps to Reproduce: 1. 2. 3. Actual results: Expected results: Additional info: Refer https://issues.redhat.com/browse/MON-2194