Replace static host list with dynamic one in service overview

roles/prometheus/files/grafana/dashboards/service_overview.json

@@ -14,9 +14,9 @@
   },
   "editable": true,
   "gnetId": null,
-  "graphTooltip": 0,
+  "graphTooltip": 1,
   "id": 5,
-  "iteration": 1558800275735,
+  "iteration": 1560276264564,
   "links": [
     {
       "asDropdown": false,
@@ -216,41 +216,20 @@
       {
         "allValue": ".*",
         "current": {
-          "selected": false,
-          "text": "All",
-          "value": "$__all"
+          "tags": [],
+          "text": "latitanza",
+          "value": "latitanza"
         },
         "datasource": "localhost",
-        "definition": "",
+        "definition": "label_values(up, host)",
         "hide": 0,
         "includeAll": true,
         "label": "Host",
         "multi": false,
         "name": "host",
-        "options": [
-          {
-            "selected": true,
-            "text": "All",
-            "value": "$__all"
-          },
-          {
-            "selected": false,
-            "text": "host1",
-            "value": "host1"
-          },
-          {
-            "selected": false,
-            "text": "host2",
-            "value": "host2"
-          },
-          {
-            "selected": false,
-            "text": "host3",
-            "value": "host3"
-          }
-        ],
+        "options": [],
         "query": "label_values(up, host)",
-        "refresh": 0,
+        "refresh": 1,
         "regex": "",
         "skipUrlSync": false,
         "sort": 1,
@@ -294,5 +273,5 @@
   "timezone": "",
   "title": "All services",
   "uid": "HnScjOniz",
-  "version": 1
+  "version": 2
 }
\ No newline at end of file