node_exporter/node_exporter.conf

{
  "scrapeInterval": 10,
  "collectors": [
    "NativeCollector",
    "GmondCollector",
    "MuninCollector"
   ],
   "attributes" : {
      "web-server" : "1",
      "zone" : "a",
      "default" : "1"
   }
}