RDC Prometheus plugin

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


[ROCm/rdc commit: 9c7a1347ea]

projects/rdc/python_binding/README.md

@@ -6,9 +6,24 @@ Then you can run RdcReader in python_binding folder:
 python RdcReader.py
 
 * Prometheus plugin
+Install the prometheus_client:
+% pip install prometheus_client
 
+Start the rdcd with auth and then run plugin to connect to it:
+% python rdc_prometheus.py
 
-* Collectd plugin
+Check the options of the plugin:
+% python rdc_prometheus.py --help
 
+Verify the plugin is running:
+% curl localhost:5000
 
+In the managment computer, install the Prometheus from
+https://github.com/prometheus/prometheus
+
+Modify the file prometheus_targets.json to add the compute nodes running the plugin.
+Start the Prometheus
+% prometheus --config.file=<full path of the rdc_prometheus_example.yml>
+
+Browse to localhost:9090 in the managment computer for metrics from RDC.