Test plan/script to ensure metrics can work with OpenShift User Workload Monitoring in a single cluster

[david-martin]

• can reuse the UWM config from the downstream stitch poc
• the script should configure scrape jobs (ServiceMonitor/PodMonitor/custom config) for the stack
• allow us to go to the Openshift > Observe > Metrics/Targets tabs and see that all targets are 'UP' & metrics exist.
• consider using the API to do this, if possible, so it can be scripted

[azgabur]

Openshifts Metrics/Targets can be accessed trough Openshift bundled Prometeus API, I did not try it yet but it should be possible.

[david-martin]

For upstream, I'm going to close this one in favour of automated testing in the testsuite repo (which uses openshift clusters), specifically the dashboard automated testing covered in Kuadrant/testsuite#401