The rdc_prometheus.py is a Prometheus plugin for RDC
The rdc_prometheus_example.yml and prometheus_targets.json are
example Prometheus configuration. If there are multiple compute
nodes, they can be defined at prometheus_targets.json.
Change-Id: I3611b1e8a166f6608351f6e7644808bf72a4d3a0
Bill(Shuzhou) Liu