Monitoring for the Nexodus Project!

Hi folks, we'd like to set up monitoring of our nexodus and nexodus-qa namespaces. We will need:

Prometheus (Could be provided by OpenShift Metrics?)
Jaeger (Could be provided by OpenShift Distributed Tracing?)
Grafana Operator (v5.0.0-RC1 or the v5 Release, whatever is current at the time)

This PR https://github.com/nexodus-io/nexodus/pull/910 contains what we're hoping to deploy into our nexodus-monitoring namespace. The rosa overlay would be deployed here via ArgoCD but is very sparse right now as we figure out what exactly would need to be in there.

We may need ingress for Prom/Jaeger depending on how those tools are exposed through the OpenShift Console - would be great if y'all have some input on that :) We will definitely need ingress for Grafana.

redhat-et / rosa-apps

Monitoring for the Nexodus Project! #64