add option to use own datasourceName

Author: hias

README.md

@@ -37,6 +37,7 @@ Here are some of the important config-options:
 |general|tmpFolder|Set a folder path, if the default PHP Tmp folder does not suite you.|
 |general|specialChar|Can be used to create more specific regex within the rules. E.g. $host = '&host&' will be replaced with 'linux-server1' if the select hostname is linux-server1. This works likewise with host, service, command.|
 |general|databaseType|Choose between influxDB and victoriametrics. |
+|general|datasourceName|Choose different datasourcename for victoriametrics backend|
 |general|disablePanelTitle|If this is set to true the PanelTitels are hidden globaly, there is an URL Flag which does it just with the current page. It is usefull to get a bigger Graphpicture.|
 |folder|defaultTemplateFolder|This is the path to the folder containing the default templates|
 |folder|customTemplateFolder|This is the path to the folder containing the custom templates. The templates in this folder will override files in the default folder, if they have the same filename|

histou.ini.example

@@ -6,6 +6,8 @@ tmpFolder = ""
 specialChar = "&"
 ; set the backend: influxdb, victoriametrics
 databaseType = "influxdb"
+; set a different datasourceName for victoriametrics backend
+; datasourceName = "myownds"
 forecastDatasourceName = "nagflux_forecast"
 ; disable the Panel Titel globally
 disablePanelTitle = false

histou/basic.php

@@ -214,6 +214,11 @@ public static function parsIni($filename)
             strtolower(Basic::getConfigKey($config, 'general', 'databaseType')),
             "influxdb"
         );
+        Basic::setConstant(
+            "DATASOURCE_NAME",
+            strtolower(Basic::getConfigKey($config, 'general', 'datasourceName')),
+            "victoriametrics"
+        );
         Basic::setConstant(
             "FORECAST_DATASOURCE_NAME",
             strtolower(Basic::getConfigKey($config, 'general', 'forecastDatasourceName')),
@@ -230,6 +235,8 @@ public static function parsIni($filename)
 
         if (DATABASE_TYPE == INFLUXDB && preg_match(";db=(\\w*);", URL, $matches)) {
             define('INFLUXDB_DB', $matches[1]);
+        } elseif (DATABASE_TYPE == VICTORIAMETRICS && DATASOURCE_NAME !== 'victoriametrics') {
+            define('VICTORIAMETRICS_DS', DATASOURCE_NAME);
         } elseif (DATABASE_TYPE == VICTORIAMETRICS) {
             define('VICTORIAMETRICS_DS', 'victoriametrics');
         }