<configuration>

  <property file="src/main/java/chapter3/variables2.properties" />

  <appender name="FILE" class="ch.qos.logback.core.FileAppender">
    <file>${destination}/myApp.log</file>
    <layout class="ch.qos.logback.classic.PatternLayout">
      <Pattern>%msg%n</Pattern>
    </layout>
  </appender>

  <root level="debug">
    <appender-ref ref="FILE" />
  </root>
</configuration>