NLog.config

<?xml version="1.0" encoding="utf-8" ?>
<nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      autoReload="true"
      throwExceptions="false">

  <!-- optional, add some variables
  https://github.com/nlog/NLog/wiki/Configuration-file#variables
  -->
  <variable name="myvar" value="myvalue"/>

  <!--
  See https://github.com/nlog/nlog/wiki/Configuration-file
  for information on customizing logging rules and outputs.
   -->
  <targets>

    <!--
    add your targets here
    See https://github.com/nlog/NLog/wiki/Targets for possible targets.
    See https://github.com/nlog/NLog/wiki/Layout-Renderers for the possible layout renderers.
    -->
    <target name="elastic" xsi:type="BufferingWrapper" flushTimeout="5000">
      <target
                connectionStringName="elasticSearch"
                xsi:type="ElasticSearch"
                layout="${message}"
                includeAllProperties="true"
            >
        <field name="metric-value" layout="${event-properties:item=metricValue}" layoutType="System.Int32"/>

        <field name = "source-class" layout ="${logger}"/>
        <field name ="thread-id" layout ="${threadid}"/>
        <field name="user" layout="${windows-identity:userName=True:domain=true}"/>
        <field name="host" layout="${machinename}"/>
        <field name="tenant" layout ="${appsetting:name=TenantId}"/>
      </target>
    </target>


    <!--
    Write events to a file with the date in the filename.
    <target xsi:type="File" name="f" fileName="${basedir}/logs/${shortdate}.log"
            layout="${longdate} ${uppercase:${level}} ${message}" />
    -->
  </targets>

  <rules>
    <!-- add your logging rules here -->
    <logger name="*"  writeTo="elastic" />
    <!--
    Write all events with minimal level of Debug (So Debug, Info, Warn, Error and Fatal, but not Trace)  to "f"
    <logger name="*" minlevel="Debug" writeTo="f" />
    -->
  </rules>
</nlog>