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">

    <extensions>
        <add assembly="NLog.Web.AspNetCore"/>
        <add assembly="NLog.Loki" />
    </extensions>

    <targets>
        <target name="logfile" xsi:type="File" fileName="file.txt" />
        <target name="logconsole" xsi:type="Console" />
        <target name="loki" xsi:type="loki"
            batchSize="200"
            taskDelayMilliseconds="500"
            endpoint="http://loki:3100"
            username=""
            password=""
            orderWrites="true"
            compressionLevel="noCompression"

        layout="${level}|${message}${onexception:|${exception:format=type,message,me
        thod:maxInnerExceptionLevel=5:innerFormat=shortType,message,method}}|source=
        ${logger}">
            <label name="app" layout="monitoring" />
            <label name="server" layout="${hostname:lowercase=true}" />
        </target>
    </targets>

    <rules>
        <logger name="*" minlevel="Info" writeTo="logconsole" />
        <logger name="*" minlevel="Debug" writeTo="logfile" />
        <logger name="*" minlevel="Info" writeTo="loki" />
    </rules>
</nlog>