diff --git a/nginx/files/grafana_influxdb.json b/nginx/files/grafana_influxdb.json
index 483403e..4eecf04 100644
--- a/nginx/files/grafana_influxdb.json
+++ b/nginx/files/grafana_influxdb.json
@@ -1,1032 +1,1058 @@
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-                "lineColor": "rgba(255, 96, 96, 0.592157)",
-                "name": "Status",
-                "query": "select title,tags,text from annotations where $timeFilter and cluster = 'nginx'",
-                "showLine": true,
-                "tagsColumn": "tags",
-                "textColumn": "text",
-                "titleColumn": "title"
-            }
-        ]
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-    "editable": true,
-    "gnetId": null,
-    "hideControls": false,
-    "id": 1,
-    "links": [],
-    "refresh": "1m",
-    "rows": [
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+  "title": "Nginx",
+  "tags": [],
+  "style": "dark",
+  "timezone": "browser",
+  "editable": true,
+  "hideControls": false,
+  "sharedCrosshair": true,
+  "rows": [
+    {
+      "collapse": false,
+      "editable": true,
+      "height": "250px",
+      "panels": [
         {
-            "collapse": false,
-            "editable": true,
-            "height": "250px",
-            "panels": [
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-                    "colorBackground": true,
-                    "colorValue": false,
-                    "colors": [
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-                    "interval": "> 60s",
-                    "links": [],
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-                    "mappingTypes": [
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-                    "prefixFontSize": "50%",
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-                            "text": "N/A",
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-                        "show": false
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-                    "targets": [
-                        {
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-                            "condition": "",
-                            "dsType": "influxdb",
-                            "fill": "",
-                            "function": "last",
-                            "groupBy": [
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-                                        "$interval"
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-                                    "type": "time"
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-                                {
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-                                    "type": "fill"
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-                            "groupby_field": "",
-                            "interval": "",
-                            "measurement": "nginx_check",
-                            "policy": "default",
-                            "query": "SELECT last(\"value\") FROM \"nginx\" WHERE \"environment_label\" = '$environment'  AND $timeFilter GROUP BY time($interval) fill(null)",
-                            "rawQuery": false,
-                            "refId": "A",
-                            "resultFormat": "time_series",
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-                                    {
-                                        "params": [],
-                                        "type": "last"
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-                                {
-                                    "key": "hostname",
-                                    "operator": "=~",
-                                    "value": "/^$server$/"
-                                }
-                            ]
-                        }
-                    ],
-                    "thresholds": "0,1",
-                    "title": "",
-                    "type": "singlestat",
-                    "valueFontSize": "80%",
-                    "valueMaps": [
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-                            "op": "=",
-                            "text": "no data",
-                            "value": "null"
-                        },
-                        {
-                            "op": "=",
-                            "text": "DOWN",
-                            "value": "0"
-                        },
-                        {
-                            "op": "=",
-                            "text": "UP",
-                            "value": "1"
-                        }
-                    ],
-                    "valueName": "current"
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-                {
-                    "aliasColors": {},
-                    "bars": false,
-                    "datasource": null,
-                    "editable": true,
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-                    "span": 5,
-                    "stack": false,
-                    "steppedLine": false,
-                    "targets": [
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-                                {
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-                            "groupByTags": [],
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-                            "policy": "default",
-                            "query": "SELECT mean(\"value\") FROM \"apache_requests\" WHERE \"hostname\" =~ /^$server$/ AND $timeFilter GROUP BY time($interval) fill(0)",
-                            "rawQuery": false,
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-                            "resultFormat": "time_series",
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-                                {
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-                                    "key": "environment_label",
-                                    "operator": "=~",
-                                    "value": "/^$environment$/"
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-                    "timeShift": null,
-                    "title": "Number of requests",
-                    "tooltip": {
-                        "msResolution": false,
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-                        "sort": 0,
-                        "value_type": "cumulative"
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-                    "type": "graph",
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-                    "yaxes": [
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-                            "label": "per second",
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-                            "min": 0,
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-                        {
-                            "format": "short",
-                            "logBase": 1,
-                            "max": null,
-                            "min": null,
-                            "show": true
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-                    "aliasColors": {},
-                    "bars": false,
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-                    "editable": true,
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-                    },
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-                    "interval": "> 60s",
-                    "legend": {
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-                        "current": false,
-                        "max": false,
-                        "min": false,
-                        "show": true,
-                        "total": false,
-                        "values": false
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-                    "lines": true,
-                    "linewidth": 1,
-                    "links": [],
-                    "nullPointMode": "connected",
-                    "percentage": false,
-                    "pointradius": 5,
-                    "points": false,
-                    "renderer": "flot",
-                    "seriesOverrides": [],
-                    "span": 5,
-                    "stack": false,
-                    "steppedLine": false,
-                    "targets": [
-                        {
-                            "alias": "accepted",
-                            "column": "value",
-                            "dsType": "influxdb",
-                            "function": "mean",
-                            "groupBy": [
-                                {
-                                    "params": [
-                                        "$interval"
-                                    ],
-                                    "type": "time"
-                                },
-                                {
-                                    "params": [
-                                        "0"
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-                                    "type": "fill"
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-                            ],
-                            "groupByTags": [],
-                            "measurement": "nginx_connections_accepted",
-                            "policy": "default",
-                            "query": "SELECT mean(\"value\") FROM \"apache_connections\" WHERE \"hostname\" =~ /^$server$/ AND $timeFilter GROUP BY time($interval) fill(0)",
-                            "rawQuery": false,
-                            "refId": "A",
-                            "resultFormat": "time_series",
-                            "select": [
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-                                    "key": "environment_label",
-                                    "operator": "=~",
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-                                    "type": "time"
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-                                {
-                                    "params": [
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-                                    "type": "fill"
-                                }
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-                            "groupByTags": [],
-                            "measurement": "nginx_connections_handled",
-                            "policy": "default",
-                            "query": "SELECT mean(\"value\") FROM \"apache_connections\" WHERE \"hostname\" =~ /^$server$/ AND $timeFilter GROUP BY time($interval) fill(0)",
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-                            "refId": "B",
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-                                    "operator": "=~",
-                                    "value": "/^$environment$/"
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-                    "tooltip": {
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-                        "value_type": "cumulative"
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-                    "xaxis": {
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-                            "format": "short",
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-                        {
-                            "format": "short",
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-                    "format": "none",
-                    "gauge": {
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-                    "interval": "> 60s",
-                    "links": [],
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-                    "mappingTypes": [
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-                            "name": "value to text",
-                            "value": 1
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-                    "nullPointMode": "connected",
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-                    "postfix": "",
-                    "postfixFontSize": "50%",
-                    "prefix": "",
-                    "prefixFontSize": "50%",
-                    "rangeMaps": [
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-                            "from": "null",
-                            "text": "N/A",
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+            "full": false,
+            "lineColor": "rgb(31, 120, 193)",
+            "show": true
+          },
+          "targets": [
+            {
+              "column": "value",
+              "dsType": "influxdb",
+              "function": "last",
+              "groupBy": [
+                {
+                  "params": [
+                    "$interval"
+                  ],
+                  "type": "time"
+                },
+                {
+                  "params": [
+                    "null"
+                  ],
+                  "type": "fill"
+                }
+              ],
+              "groupByTags": [],
+              "measurement": "nginx_connections_writing",
+              "policy": "default",
+              "query": "SELECT last(\"value\") FROM \"apache_connections\" WHERE \"hostname\" =~ /^$server$/ AND $timeFilter GROUP BY time($interval) fill(null)",
+              "rawQuery": false,
+              "refId": "A",
+              "resultFormat": "time_series",
+              "select": [
+                [
+                  {
+                    "params": [
+                      "value"
+                    ],
+                    "type": "field"
+                  },
+                  {
+                    "params": [],
+                    "type": "last"
+                  }
+                ]
+              ],
+              "tags": [
+                {
+                  "key": "hostname",
+                  "operator": "=",
+                  "value": "$server"
+                },
+                {
+                  "condition": "AND",
+                  "key": "environment_label",
+                  "operator": "=~",
+                  "value": "/^$environment$/"
+                }
+              ]
+            }
+          ],
+          "thresholds": "",
+          "title": "Writing connections",
+          "type": "singlestat",
+          "valueFontSize": "80%",
+          "valueMaps": [
+            {
+              "op": "=",
+              "text": "N/A",
+              "value": "null"
+            }
+          ],
+          "valueName": "current"
+        },
+        {
+          "cacheTimeout": null,
+          "colorBackground": false,
+          "colorValue": false,
+          "colors": [
+            "rgba(245, 54, 54, 0.9)",
+            "rgba(237, 129, 40, 0.89)",
+            "rgba(50, 172, 45, 0.97)"
+          ],
+          "datasource": null,
+          "editable": true,
+          "error": false,
+          "format": "none",
+          "gauge": {
+            "maxValue": 100,
+            "minValue": 0,
+            "show": false,
+            "thresholdLabels": false,
+            "thresholdMarkers": true
+          },
+          "id": 14,
+          "interval": "> 60s",
+          "links": [],
+          "mappingType": 1,
+          "mappingTypes": [
+            {
+              "name": "value to text",
+              "value": 1
+            },
+            {
+              "name": "range to text",
+              "value": 2
+            }
+          ],
+          "maxDataPoints": 100,
+          "nullPointMode": "connected",
+          "nullText": null,
+          "postfix": "",
+          "postfixFontSize": "50%",
+          "prefix": "",
+          "prefixFontSize": "50%",
+          "rangeMaps": [
+            {
+              "from": "null",
+              "text": "N/A",
+              "to": "null"
+            }
+          ],
+          "span": 3,
+          "sparkline": {
+            "fillColor": "rgba(31, 118, 189, 0.18)",
+            "full": false,
+            "lineColor": "rgb(31, 120, 193)",
+            "show": true
+          },
+          "targets": [
+            {
+              "column": "value",
+              "dsType": "influxdb",
+              "function": "last",
+              "groupBy": [
+                {
+                  "params": [
+                    "$interval"
+                  ],
+                  "type": "time"
+                },
+                {
+                  "params": [
+                    "null"
+                  ],
+                  "type": "fill"
+                }
+              ],
+              "groupByTags": [],
+              "measurement": "nginx_connections_waiting",
+              "policy": "default",
+              "query": "SELECT last(\"value\") FROM \"apache_connections\" WHERE \"hostname\" =~ /^$server$/ AND $timeFilter GROUP BY time($interval) fill(null)",
+              "rawQuery": false,
+              "refId": "A",
+              "resultFormat": "time_series",
+              "select": [
+                [
+                  {
+                    "params": [
+                      "value"
+                    ],
+                    "type": "field"
+                  },
+                  {
+                    "params": [],
+                    "type": "last"
+                  }
+                ]
+              ],
+              "tags": [
+                {
+                  "key": "hostname",
+                  "operator": "=",
+                  "value": "$server"
+                },
+                {
+                  "condition": "AND",
+                  "key": "environment_label",
+                  "operator": "=~",
+                  "value": "/^$environment$/"
+                }
+              ]
+            }
+          ],
+          "thresholds": "",
+          "title": "Waiting connections",
+          "type": "singlestat",
+          "valueFontSize": "80%",
+          "valueMaps": [
+            {
+              "op": "=",
+              "text": "N/A",
+              "value": "null"
+            }
+          ],
+          "valueName": "current"
+        }
+      ],
+      "title": "Metrics"
+    }
+  ],
+  "time": {
+    "from": "now-1h",
+    "to": "now"
+  },
+  "timepicker": {
+    "collapse": false,
+    "enable": true,
+    "notice": false,
+    "now": true,
+    "refresh_intervals": [
+      "5s",
+      "10s",
+      "30s",
+      "1m",
+      "5m",
+      "15m",
+      "30m",
+      "1h",
+      "2h",
+      "1d"
+    ],
+    "status": "Stable",
+    "time_options": [
+      "5m",
+      "15m",
+      "1h",
+      "6h",
+      "12h",
+      "24h",
+      "2d",
+      "7d",
+      "30d"
+    ],
+    "type": "timepicker"
+  },
+  "templating": {
+    "enable": true,
+    "list": [
+      {
+        "allFormat": "regex values",
+        "current": {
+          "text": "mk20-stacklight-basic.local",
+          "value": "mk20-stacklight-basic.local"
+        },
+        "datasource": null,
+        "hide": 0,
+        "includeAll": false,
+        "name": "environment",
+        "options": [
+          {
+            "text": "mk20-stacklight-basic.local",
+            "value": "mk20-stacklight-basic.local",
+            "selected": true
+          }
+        ],
+        "query": "show tag values from nginx_requests with key = environment_label",
+        "refresh": 1,
+        "refresh_on_load": true,
+        "regex": "",
+        "type": "query"
+      },
+      {
+        "allFormat": "glob",
+        "current": {
+          "text": "prx01",
+          "value": "prx01"
+        },
+        "datasource": null,
+        "hide": 0,
+        "includeAll": false,
+        "name": "server",
+        "options": [
+          {
+            "text": "prx01",
+            "value": "prx01",
+            "selected": true
+          }
+        ],
+        "query": "show tag values from nginx_requests with key = hostname where environment_label =~ /^$environment$/",
+        "refresh": 1,
+        "refresh_on_load": true,
+        "regex": "",
+        "type": "query"
+      }
+    ]
+  },
+  "annotations": {
+    "list": [
+      {
+        "datasource": "lma",
         "enable": true,
-        "notice": false,
-        "now": true,
-        "refresh_intervals": [
-            "5s",
-            "10s",
-            "30s",
-            "1m",
-            "5m",
-            "15m",
-            "30m",
-            "1h",
-            "2h",
-            "1d"
-        ],
-        "status": "Stable",
-        "time_options": [
-            "5m",
-            "15m",
-            "1h",
-            "6h",
-            "12h",
-            "24h",
-            "2d",
-            "7d",
-            "30d"
-        ],
-        "type": "timepicker"
-    },
-    "timezone": "browser",
-    "title": "Nginx",
-    "version": 6
+        "iconColor": "#C0C6BE",
+        "iconSize": 13,
+        "lineColor": "rgba(255, 96, 96, 0.592157)",
+        "name": "Status",
+        "query": "select title,tags,text from annotations where $timeFilter and cluster = 'nginx'",
+        "showLine": true,
+        "tagsColumn": "tags",
+        "textColumn": "text",
+        "titleColumn": "title"
+      }
+    ]
+  },
+  "refresh": "1m",
+  "schemaVersion": 12,
+  "version": 6,
+  "links": [],
+  "gnetId": null
 }