logback-spring.xml

<configuration>

    <springProperty scope="context"
                    name="serviceName"
                    source="spring.application.name"/>

    <!-- Console logging -->
    <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>%d{yyyy-MM-dd HH:mm:ss} [%thread] %-5level %logger - %msg%n</pattern>
        </encoder>
    </appender>

    <!-- Logstash TCP -->
    <appender name="LOGSTASH"
              class="net.logstash.logback.appender.LogstashTcpSocketAppender">

        <destination>localhost:6000</destination>

        <encoder class="net.logstash.logback.encoder.LogstashEncoder">
            <customFields>
                {
                  "service":"${serviceName}",
                  "environment":"dev"
                }
            </customFields>
        </encoder>
    </appender>

    <!-- Async wrapper -->
    <appender name="ASYNC_LOGSTASH"
              class="ch.qos.logback.classic.AsyncAppender">
        <appender-ref ref="LOGSTASH"/>
    </appender>

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

</configuration>