diff --git a/nginx/files/grafana_dashboards/nginx_prometheus.json b/nginx/files/grafana_dashboards/nginx_prometheus.json
index db7e6b9..ce5a261 100644
--- a/nginx/files/grafana_dashboards/nginx_prometheus.json
+++ b/nginx/files/grafana_dashboards/nginx_prometheus.json
@@ -3,8 +3,9 @@
   "annotations": {
     "list": [
       {
+        "$$hashKey": "object:12123",
         "builtIn": 1,
-        "datasource": "default",
+        "datasource": "prometheus",
         "enable": true,
         "hide": true,
         "iconColor": "rgba(0, 211, 255, 1)",
@@ -19,11 +20,11 @@
   "gnetId": null,
   "graphTooltip": 0,
   "id": null,
-  "iteration": 1528293496635,
+  "iteration": 1529576141459,
   "links": [],
   "panels": [
     {
-      "collapsed": true,
+      "collapsed": false,
       "gridPos": {
         "h": 1,
         "w": 24,
@@ -55,7 +56,7 @@
       },
       "gridPos": {
         "h": 3,
-        "w": 24,
+        "w": 12,
         "x": 0,
         "y": 1
       },
@@ -65,10 +66,12 @@
       "mappingType": 1,
       "mappingTypes": [
         {
+          "$$hashKey": "object:16734",
           "name": "value to text",
           "value": 1
         },
         {
+          "$$hashKey": "object:16735",
           "name": "range to text",
           "value": 2
         }
@@ -90,6 +93,14 @@
       ],
       "repeat": "host",
       "repeatDirection": "h",
+      "scopedVars": {
+        "host": {
+          "$$hashKey": "object:12486",
+          "selected": false,
+          "text": "prx01",
+          "value": "prx01"
+        }
+      },
       "sparkline": {
         "fillColor": "rgba(31, 118, 189, 0.18)",
         "full": false,
@@ -99,6 +110,7 @@
       "tableColumn": "",
       "targets": [
         {
+          "$$hashKey": "object:16641",
           "expr": "nginx_up{host=~\"$host\"}",
           "format": "time_series",
           "intervalFactor": 1,
@@ -111,16 +123,128 @@
       "valueFontSize": "80%",
       "valueMaps": [
         {
+          "$$hashKey": "object:16737",
           "op": "=",
           "text": "N/A",
           "value": "null"
         },
         {
+          "$$hashKey": "object:16738",
           "op": "=",
-          "text": "Fail",
+          "text": "FAIL",
           "value": "0"
         },
         {
+          "$$hashKey": "object:16739",
+          "op": "=",
+          "text": "OK",
+          "value": "1"
+        }
+      ],
+      "valueName": "current"
+    },
+    {
+      "cacheTimeout": null,
+      "colorBackground": true,
+      "colorValue": false,
+      "colors": [
+        "#d44a3a",
+        "rgba(237, 129, 40, 0.89)",
+        "#299c46"
+      ],
+      "datasource": null,
+      "format": "none",
+      "gauge": {
+        "maxValue": 100,
+        "minValue": 0,
+        "show": false,
+        "thresholdLabels": false,
+        "thresholdMarkers": true
+      },
+      "gridPos": {
+        "h": 3,
+        "w": 12,
+        "x": 12,
+        "y": 1
+      },
+      "id": 30,
+      "interval": null,
+      "links": [],
+      "mappingType": 1,
+      "mappingTypes": [
+        {
+          "$$hashKey": "object:16734",
+          "name": "value to text",
+          "value": 1
+        },
+        {
+          "$$hashKey": "object:16735",
+          "name": "range to text",
+          "value": 2
+        }
+      ],
+      "maxDataPoints": 100,
+      "minSpan": 2,
+      "nullPointMode": "connected",
+      "nullText": null,
+      "postfix": "",
+      "postfixFontSize": "50%",
+      "prefix": "",
+      "prefixFontSize": "50%",
+      "rangeMaps": [
+        {
+          "from": "null",
+          "text": "N/A",
+          "to": "null"
+        }
+      ],
+      "repeat": null,
+      "repeatDirection": "h",
+      "repeatIteration": 1529576141459,
+      "repeatPanelId": 18,
+      "scopedVars": {
+        "host": {
+          "$$hashKey": "object:12487",
+          "selected": false,
+          "text": "prx02",
+          "value": "prx02"
+        }
+      },
+      "sparkline": {
+        "fillColor": "rgba(31, 118, 189, 0.18)",
+        "full": false,
+        "lineColor": "rgb(31, 120, 193)",
+        "show": false
+      },
+      "tableColumn": "",
+      "targets": [
+        {
+          "$$hashKey": "object:16641",
+          "expr": "nginx_up{host=~\"$host\"}",
+          "format": "time_series",
+          "intervalFactor": 1,
+          "refId": "A"
+        }
+      ],
+      "thresholds": "0.5,1",
+      "title": "Nginx@${host}",
+      "type": "singlestat",
+      "valueFontSize": "80%",
+      "valueMaps": [
+        {
+          "$$hashKey": "object:16737",
+          "op": "=",
+          "text": "N/A",
+          "value": "null"
+        },
+        {
+          "$$hashKey": "object:16738",
+          "op": "=",
+          "text": "FAIL",
+          "value": "0"
+        },
+        {
+          "$$hashKey": "object:16739",
           "op": "=",
           "text": "OK",
           "value": "1"
@@ -156,13 +280,15 @@
       },
       "id": 4,
       "legend": {
-        "avg": false,
+        "alignAsTable": true,
+        "avg": true,
         "current": false,
         "max": false,
         "min": false,
+        "rightSide": true,
         "show": true,
         "total": false,
-        "values": false
+        "values": true
       },
       "lines": true,
       "linewidth": 1,
@@ -178,7 +304,8 @@
       "steppedLine": false,
       "targets": [
         {
-          "expr": "irate(nginx_requests{host=~\"$host\"}[1m])",
+          "$$hashKey": "object:12216",
+          "expr": "rate(nginx_requests{host=~\"$host\"}[$rate_interval])",
           "format": "time_series",
           "intervalFactor": 2,
           "legendFormat": "{{ host }}",
@@ -204,6 +331,8 @@
       },
       "yaxes": [
         {
+          "$$hashKey": "object:12244",
+          "decimals": 0,
           "format": "ops",
           "label": null,
           "logBase": 1,
@@ -212,6 +341,7 @@
           "show": true
         },
         {
+          "$$hashKey": "object:12245",
           "format": "short",
           "label": null,
           "logBase": 1,
@@ -254,15 +384,15 @@
       },
       "id": 6,
       "legend": {
-        "alignAsTable": false,
-        "avg": false,
+        "alignAsTable": true,
+        "avg": true,
         "current": false,
         "max": false,
         "min": false,
-        "rightSide": false,
+        "rightSide": true,
         "show": true,
         "total": false,
-        "values": false
+        "values": true
       },
       "lines": true,
       "linewidth": 1,
@@ -273,7 +403,7 @@
       "pointradius": 5,
       "points": false,
       "renderer": "flot",
-      "repeat": "host",
+      "repeat": null,
       "repeatDirection": "h",
       "seriesOverrides": [],
       "spaceLength": 10,
@@ -281,24 +411,26 @@
       "steppedLine": false,
       "targets": [
         {
-          "expr": "irate(nginx_accepts{host=~\"$host\"}[1m])",
+          "$$hashKey": "object:12438",
+          "expr": "rate(nginx_accepts{host=~\"$host\"}[$rate_interval])",
           "format": "time_series",
           "intervalFactor": 2,
-          "legendFormat": "accepted",
+          "legendFormat": "accepted @{{ host }}",
           "refId": "A"
         },
         {
-          "expr": "irate(nginx_handled{host=~\"$host\"}[1m])",
+          "$$hashKey": "object:12439",
+          "expr": "rate(nginx_handled{host=~\"$host\"}[$rate_interval])",
           "format": "time_series",
           "intervalFactor": 2,
-          "legendFormat": "handled",
+          "legendFormat": "handled @{{ host }}",
           "refId": "B"
         }
       ],
       "thresholds": [],
       "timeFrom": null,
       "timeShift": null,
-      "title": "Connections for Nginx@${host}",
+      "title": "Connection status",
       "tooltip": {
         "shared": true,
         "sort": 0,
@@ -314,6 +446,8 @@
       },
       "yaxes": [
         {
+          "$$hashKey": "object:12408",
+          "decimals": 0,
           "format": "ops",
           "label": null,
           "logBase": 1,
@@ -322,6 +456,7 @@
           "show": true
         },
         {
+          "$$hashKey": "object:12409",
           "format": "short",
           "label": null,
           "logBase": 1,
@@ -336,69 +471,45 @@
       }
     },
     {
-      "cacheTimeout": null,
-      "colorBackground": false,
-      "colorValue": false,
-      "colors": [
-        "#d44a3a",
-        "rgba(237, 129, 40, 0.89)",
-        "#299c46"
-      ],
+      "aliasColors": {},
+      "bars": false,
+      "dashLength": 10,
+      "dashes": false,
       "datasource": null,
-      "format": "none",
-      "gauge": {
-        "maxValue": 100,
-        "minValue": 0,
-        "show": false,
-        "thresholdLabels": false,
-        "thresholdMarkers": true
-      },
+      "fill": 1,
       "gridPos": {
-        "h": 3,
-        "w": 24,
+        "h": 6,
+        "w": 12,
         "x": 0,
         "y": 18
       },
-      "id": 8,
-      "interval": null,
-      "links": [],
-      "mappingType": 1,
-      "mappingTypes": [
-        {
-          "name": "value to text",
-          "value": 1
-        },
-        {
-          "name": "range to text",
-          "value": 2
-        }
-      ],
-      "maxDataPoints": 100,
-      "minSpan": 2,
-      "nullPointMode": "connected",
-      "nullText": null,
-      "postfix": "",
-      "postfixFontSize": "50%",
-      "prefix": "",
-      "prefixFontSize": "50%",
-      "rangeMaps": [
-        {
-          "from": "null",
-          "text": "N/A",
-          "to": "null"
-        }
-      ],
-      "repeat": "host",
-      "repeatDirection": "h",
-      "sparkline": {
-        "fillColor": "rgba(31, 118, 189, 0.18)",
-        "full": false,
-        "lineColor": "rgb(31, 120, 193)",
-        "show": true
+      "id": 23,
+      "legend": {
+        "alignAsTable": true,
+        "avg": true,
+        "current": false,
+        "max": false,
+        "min": false,
+        "rightSide": true,
+        "show": true,
+        "total": false,
+        "values": true
       },
-      "tableColumn": "",
+      "lines": true,
+      "linewidth": 1,
+      "links": [],
+      "nullPointMode": "null",
+      "percentage": false,
+      "pointradius": 5,
+      "points": false,
+      "renderer": "flot",
+      "seriesOverrides": [],
+      "spaceLength": 10,
+      "stack": false,
+      "steppedLine": false,
       "targets": [
         {
+          "$$hashKey": "object:13079",
           "expr": "nginx_active{host=~\"$host\"}",
           "format": "time_series",
           "intervalFactor": 2,
@@ -406,251 +517,89 @@
           "refId": "A"
         }
       ],
-      "thresholds": "",
-      "title": "Active connections for Nginx@${host}",
-      "type": "singlestat",
-      "valueFontSize": "80%",
-      "valueMaps": [
-        {
-          "op": "=",
-          "text": "N/A",
-          "value": "null"
-        }
-      ],
-      "valueName": "current"
-    },
-    {
-      "cacheTimeout": null,
-      "colorBackground": false,
-      "colorValue": false,
-      "colors": [
-        "#d44a3a",
-        "rgba(237, 129, 40, 0.89)",
-        "#299c46"
-      ],
-      "datasource": null,
-      "format": "none",
-      "gauge": {
-        "maxValue": 100,
-        "minValue": 0,
-        "show": false,
-        "thresholdLabels": false,
-        "thresholdMarkers": true
+      "thresholds": [],
+      "timeFrom": null,
+      "timeShift": null,
+      "title": "Active connections",
+      "tooltip": {
+        "shared": true,
+        "sort": 0,
+        "value_type": "individual"
       },
-      "gridPos": {
-        "h": 3,
-        "w": 24,
-        "x": 0,
-        "y": 21
+      "type": "graph",
+      "xaxis": {
+        "buckets": null,
+        "mode": "time",
+        "name": null,
+        "show": true,
+        "values": []
       },
-      "id": 11,
-      "interval": null,
-      "links": [],
-      "mappingType": 1,
-      "mappingTypes": [
+      "yaxes": [
         {
-          "name": "value to text",
-          "value": 1
+          "$$hashKey": "object:13148",
+          "decimals": 0,
+          "format": "short",
+          "label": null,
+          "logBase": 1,
+          "max": null,
+          "min": "0",
+          "show": true
         },
         {
-          "name": "range to text",
-          "value": 2
+          "$$hashKey": "object:13149",
+          "format": "short",
+          "label": null,
+          "logBase": 1,
+          "max": null,
+          "min": null,
+          "show": true
         }
       ],
-      "maxDataPoints": 100,
-      "minSpan": 2,
-      "nullPointMode": "connected",
-      "nullText": null,
-      "postfix": "",
-      "postfixFontSize": "50%",
-      "prefix": "",
-      "prefixFontSize": "50%",
-      "rangeMaps": [
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-          "from": "null",
-          "text": "N/A",
-          "to": "null"
-        }
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-      "repeat": "host",
-      "repeatDirection": "h",
-      "sparkline": {
-        "fillColor": "rgba(31, 118, 189, 0.18)",
-        "full": false,
-        "lineColor": "rgb(31, 120, 193)",
-        "show": true
-      },
-      "tableColumn": "",
-      "targets": [
-        {
-          "expr": "nginx_writing{host=~\"$host\"}",
-          "format": "time_series",
-          "intervalFactor": 2,
-          "legendFormat": "{{ host }}",
-          "refId": "A"
-        }
-      ],
-      "thresholds": "",
-      "title": "Writing connections for Nginx@${host}",
-      "type": "singlestat",
-      "valueFontSize": "80%",
-      "valueMaps": [
-        {
-          "op": "=",
-          "text": "N/A",
-          "value": "null"
-        }
-      ],
-      "valueName": "current"
+      "yaxis": {
+        "align": false,
+        "alignLevel": null
+      }
     },
     {
-      "cacheTimeout": null,
-      "colorBackground": false,
-      "colorValue": false,
-      "colors": [
-        "#d44a3a",
-        "rgba(237, 129, 40, 0.89)",
-        "#299c46"
-      ],
+      "aliasColors": {},
+      "bars": false,
+      "dashLength": 10,
+      "dashes": false,
       "datasource": null,
-      "format": "none",
-      "gauge": {
-        "maxValue": 100,
-        "minValue": 0,
-        "show": false,
-        "thresholdLabels": false,
-        "thresholdMarkers": true
-      },
+      "fill": 1,
       "gridPos": {
-        "h": 3,
-        "w": 24,
-        "x": 0,
-        "y": 24
+        "h": 6,
+        "w": 12,
+        "x": 12,
+        "y": 18
       },
-      "id": 10,
-      "interval": null,
+      "id": 29,
+      "legend": {
+        "alignAsTable": true,
+        "avg": true,
+        "current": false,
+        "max": false,
+        "min": false,
+        "rightSide": true,
+        "show": true,
+        "total": false,
+        "values": true
+      },
+      "lines": true,
+      "linewidth": 1,
       "links": [],
-      "mappingType": 1,
-      "mappingTypes": [
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-          "name": "value to text",
-          "value": 1
-        },
-        {
-          "name": "range to text",
-          "value": 2
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-      "maxDataPoints": 100,
-      "minSpan": 2,
-      "nullPointMode": "connected",
-      "nullText": null,
-      "postfix": "",
-      "postfixFontSize": "50%",
-      "prefix": "",
-      "prefixFontSize": "50%",
-      "rangeMaps": [
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-          "text": "N/A",
-          "to": "null"
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-      "repeat": "host",
-      "repeatDirection": "h",
-      "sparkline": {
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-        "full": false,
-        "lineColor": "rgb(31, 120, 193)",
-        "show": true
-      },
-      "tableColumn": "",
+      "nullPointMode": "null",
+      "percentage": false,
+      "pointradius": 5,
+      "points": false,
+      "renderer": "flot",
+      "seriesOverrides": [],
+      "spaceLength": 10,
+      "stack": false,
+      "steppedLine": false,
       "targets": [
         {
-          "expr": "nginx_reading{host=~\"$host\"}",
-          "format": "time_series",
-          "intervalFactor": 1,
-          "legendFormat": "{{ host }}",
-          "refId": "A"
-        }
-      ],
-      "thresholds": "",
-      "title": "Reading connections for Nginx@${host}",
-      "type": "singlestat",
-      "valueFontSize": "80%",
-      "valueMaps": [
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-          "text": "N/A",
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-      "cacheTimeout": null,
-      "colorBackground": false,
-      "colorValue": false,
-      "colors": [
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-        "thresholdLabels": false,
-        "thresholdMarkers": true
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-        "w": 24,
-        "x": 0,
-        "y": 27
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-      "interval": null,
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-      "postfix": "",
-      "postfixFontSize": "50%",
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-      "prefixFontSize": "50%",
-      "rangeMaps": [
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-          "from": "null",
-          "text": "N/A",
-          "to": "null"
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-      "repeat": "host",
-      "repeatDirection": "h",
-      "sparkline": {
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-        "full": false,
-        "lineColor": "rgb(31, 120, 193)",
-        "show": true
-      },
-      "tableColumn": "",
-      "targets": [
-        {
+          "$$hashKey": "object:13804",
           "expr": "nginx_waiting{host=~\"$host\"}",
           "format": "time_series",
           "intervalFactor": 2,
@@ -658,20 +607,232 @@
           "refId": "A"
         }
       ],
-      "thresholds": "",
-      "title": "Waiting connections for Nginx@${host}",
-      "type": "singlestat",
-      "valueFontSize": "80%",
-      "valueMaps": [
+      "thresholds": [],
+      "timeFrom": null,
+      "timeShift": null,
+      "title": "Waiting connections",
+      "tooltip": {
+        "shared": true,
+        "sort": 0,
+        "value_type": "individual"
+      },
+      "type": "graph",
+      "xaxis": {
+        "buckets": null,
+        "mode": "time",
+        "name": null,
+        "show": true,
+        "values": []
+      },
+      "yaxes": [
         {
-          "op": "=",
-          "text": "N/A",
-          "value": "null"
+          "$$hashKey": "object:13873",
+          "decimals": 0,
+          "format": "short",
+          "label": null,
+          "logBase": 1,
+          "max": null,
+          "min": "0",
+          "show": true
+        },
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+          "$$hashKey": "object:13874",
+          "format": "short",
+          "label": null,
+          "logBase": 1,
+          "max": null,
+          "min": null,
+          "show": true
         }
       ],
-      "valueName": "current"
+      "yaxis": {
+        "align": false,
+        "alignLevel": null
+      }
+    },
+    {
+      "aliasColors": {},
+      "bars": false,
+      "dashLength": 10,
+      "dashes": false,
+      "datasource": null,
+      "fill": 1,
+      "gridPos": {
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+        "w": 12,
+        "x": 0,
+        "y": 24
+      },
+      "id": 25,
+      "legend": {
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+        "avg": true,
+        "current": false,
+        "max": false,
+        "min": false,
+        "rightSide": true,
+        "show": true,
+        "total": false,
+        "values": true
+      },
+      "lines": true,
+      "linewidth": 1,
+      "links": [],
+      "nullPointMode": "null",
+      "percentage": false,
+      "pointradius": 5,
+      "points": false,
+      "renderer": "flot",
+      "seriesOverrides": [],
+      "spaceLength": 10,
+      "stack": false,
+      "steppedLine": false,
+      "targets": [
+        {
+          "$$hashKey": "object:13332",
+          "expr": "nginx_writing{host=~\"$host\"}",
+          "format": "time_series",
+          "intervalFactor": 2,
+          "legendFormat": "{{ host }}",
+          "refId": "A"
+        }
+      ],
+      "thresholds": [],
+      "timeFrom": null,
+      "timeShift": null,
+      "title": "Writing connections",
+      "tooltip": {
+        "shared": true,
+        "sort": 0,
+        "value_type": "individual"
+      },
+      "type": "graph",
+      "xaxis": {
+        "buckets": null,
+        "mode": "time",
+        "name": null,
+        "show": true,
+        "values": []
+      },
+      "yaxes": [
+        {
+          "$$hashKey": "object:13401",
+          "decimals": 0,
+          "format": "short",
+          "label": null,
+          "logBase": 1,
+          "max": null,
+          "min": "0",
+          "show": true
+        },
+        {
+          "$$hashKey": "object:13402",
+          "format": "short",
+          "label": null,
+          "logBase": 1,
+          "max": null,
+          "min": null,
+          "show": true
+        }
+      ],
+      "yaxis": {
+        "align": false,
+        "alignLevel": null
+      }
+    },
+    {
+      "aliasColors": {},
+      "bars": false,
+      "dashLength": 10,
+      "dashes": false,
+      "datasource": null,
+      "fill": 1,
+      "gridPos": {
+        "h": 6,
+        "w": 12,
+        "x": 12,
+        "y": 24
+      },
+      "id": 27,
+      "legend": {
+        "alignAsTable": true,
+        "avg": true,
+        "current": false,
+        "max": false,
+        "min": false,
+        "rightSide": true,
+        "show": true,
+        "total": false,
+        "values": true
+      },
+      "lines": true,
+      "linewidth": 1,
+      "links": [],
+      "nullPointMode": "null",
+      "percentage": false,
+      "pointradius": 5,
+      "points": false,
+      "renderer": "flot",
+      "seriesOverrides": [],
+      "spaceLength": 10,
+      "stack": false,
+      "steppedLine": false,
+      "targets": [
+        {
+          "$$hashKey": "object:13538",
+          "expr": "nginx_reading{host=~\"$host\"}",
+          "format": "time_series",
+          "intervalFactor": 2,
+          "legendFormat": "{{ host }}",
+          "refId": "A"
+        }
+      ],
+      "thresholds": [],
+      "timeFrom": null,
+      "timeShift": null,
+      "title": "Reading connections",
+      "tooltip": {
+        "shared": true,
+        "sort": 0,
+        "value_type": "individual"
+      },
+      "type": "graph",
+      "xaxis": {
+        "buckets": null,
+        "mode": "time",
+        "name": null,
+        "show": true,
+        "values": []
+      },
+      "yaxes": [
+        {
+          "$$hashKey": "object:13648",
+          "decimals": 0,
+          "format": "short",
+          "label": null,
+          "logBase": 1,
+          "max": null,
+          "min": "0",
+          "show": true
+        },
+        {
+          "$$hashKey": "object:13649",
+          "decimals": null,
+          "format": "short",
+          "label": null,
+          "logBase": 1,
+          "max": null,
+          "min": null,
+          "show": true
+        }
+      ],
+      "yaxis": {
+        "align": false,
+        "alignLevel": null
+      }
     }
   ],
+  "refresh": "1m",
   "schemaVersion": 16,
   "style": "dark",
   "tags": [],
@@ -679,7 +840,13 @@
     "list": [
       {
         "allValue": null,
-        "current": {},
+        "current": {
+          "tags": [],
+          "text": "All",
+          "value": [
+            "$__all"
+          ]
+        },
         "datasource": "default",
         "hide": 0,
         "includeAll": true,
@@ -696,11 +863,53 @@
         "tagsQuery": "",
         "type": "query",
         "useTags": false
+      },
+      {
+        "auto": false,
+        "auto_count": 30,
+        "auto_min": "10s",
+        "current": {
+          "text": "3m",
+          "value": "3m"
+        },
+        "hide": 0,
+        "label": null,
+        "name": "rate_interval",
+        "options": [
+          {
+            "selected": false,
+            "text": "1m",
+            "value": "1m"
+          },
+          {
+            "selected": false,
+            "text": "2m",
+            "value": "2m"
+          },
+          {
+            "selected": true,
+            "text": "3m",
+            "value": "3m"
+          },
+          {
+            "selected": false,
+            "text": "10m",
+            "value": "10m"
+          },
+          {
+            "selected": false,
+            "text": "15m",
+            "value": "15m"
+          }
+        ],
+        "query": "1m,2m,3m,10m,15m",
+        "refresh": 2,
+        "type": "interval"
       }
     ]
   },
   "time": {
-    "from": "now-6h",
+    "from": "now-1h",
     "to": "now"
   },
   "timepicker": {