Added a node_exporter role initially built for...

peregrine.

promtools/addport.py

@@ -0,0 +1,34 @@
+#!/usr/bin/env python3
+'''
+Pushprox:  does not include the port number in its targets json
+on the /clients endpoint. while Prometheus does seem to need it.
+
+for more info see: https://github.com/RobustPerception/PushProx
+'''
+
+import json
+from urllib import request
+
+url = 'http://knyft.hpc.rug.nl:6060/clients'
+outfile = 'targets.json'
+
+data = json.loads(request.urlopen(url).read().decode('utf-8'))
+
+targets = []
+
+for node in data:
+    for target in node['targets']:
+        if target[-5:] != '9100':
+            target = '{}:9100'.format(target)
+            targets.append(target)
+
+with open(outfile, 'w') as handle:
+    handle.write(json.dumps(
+        [{
+        "targets" : targets,
+        "labels": {
+            "env": "peregrine",
+            "job": "node"
+            }
+        }]
+        ,indent=4 ))