logback+graylog spring configuration example

logback-spring.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration>

<configuration>

    <property name="CONSOLE_LOG_PATTERN"
              value="${CONSOLE_LOG_PATTERN:-%clr(%d{yyyy-MM-dd HH:mm:ss.SSS}){faint} %clr(${LOG_LEVEL_PATTERN:-%5p}) %clr(${PID:- }){magenta} %clr(---){faint} %clr([%15.15t]){faint} %clr(%-40.40logger{39}){cyan} [%X{svc_usr}]%clr(:){faint} %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}}"/>
    <include resource="org/springframework/boot/logging/logback/base.xml"/>

    <contextName>test</contextName>
    <jmxConfigurator/>

    <springProperty scope="context" name="APP_ORG" source="APP_ORG" defaultValue="tdlabs"/>
    <!-- tdlabs, internal, customer-42, tenant-42 -->

    <springProperty scope="context" name="APP_CTX" source="APP_CTX" defaultValue="demo"/>
    <!-- core, infra, idm, sec, domain1, domain2, domain3-->

    <springProperty scope="context" name="APP_ENV" source="APP_ENV" defaultValue="dev"/>
    <!-- dev, qa, prod -->

    <springProperty scope="context" name="APP_NAME" source="spring.application.name"/>
    <!-- greeting-service -->

    <appender name="GELF" class="biz.paluch.logging.gelf.logback.GelfLogbackAppender">
        <host>${LOG_PROTO:-udp}:${LOG_HOSTNAME:-localhost}</host>
        <port>${LOG_PORT:-12201}</port>

        <version>1.1</version>
        <timestampPattern>yyyy-MM-dd HH:mm:ss,SSSS</timestampPattern>
        <maximumMessageSize>8192</maximumMessageSize>

        <facility>-</facility> <!--disable facility -->

        <extractStackTrace>true</extractStackTrace> <!-- we want stack-traces-->
        <filterStackTrace>true</filterStackTrace> <!-- trim stack-traces, see: http://logging.paluch.biz/stack-trace-filter.html -->

        <mdcProfiling>false</mdcProfiling>

        <additionalFields>org=${APP_ORG},ctx=${APP_CTX},svc=${APP_NAME},env=${APP_ENV}</additionalFields>
        <additionalFieldTypes>org=String,ctx=String,svc=String,env=String</additionalFieldTypes>

        <mdcFields>APP_STAGE</mdcFields>
        <dynamicMdcFields>svc_.*</dynamicMdcFields>
        <!--<includeFullMdc>true</includeFullMdc>-->

        <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
            <level>${LOG_LEVEL_GELF:-INFO}</level>
        </filter>
    </appender>

    <root level="INFO">
        <appender-ref ref="GELF"/>
        <appender-ref ref="CONSOLE"/>
    </root>

    <logger name="demo" level="DEBUG"/>

</configuration>