add disk var

salt/grafana/templates/disk.json

@@ -0,0 +1,28 @@
+{
+  "allValue": null,
+  "current": {
+    "selected": false,
+    "text": "All",
+    "value": "$__all"
+  },
+  "datasource": "$InfluxDB",
+  "definition": "",
+  "description": null,
+  "error": null,
+  "hide": 2,
+  "includeAll": true,
+  "label": "Disk",
+  "multi": true,
+  "name": "disk",
+  "options": [],
+  "query": "SHOW TAG VALUES ON telegraf FROM \"diskio\" WITH KEY = \"name\" WHERE host =~ /$servername/",
+  "refresh": 1,
+  "regex": "[a-z]d[\\D]$|nvme[\\d]n[\\d]$",
+  "skipUrlSync": false,
+  "sort": 0,
+  "tagValuesQuery": null,
+  "tags": [],
+  "tagsQuery": null,
+  "type": "query",
+  "useTags": false
+}