[Logback] JSON Layout Format 적용하기.

Springboot 로 프로젝트 생성 후 로깅 하면서 로그 포멧을 JSON 으로 적용 하기 위한 내용을 기억 차원에서 작성 합니다.

 

[logback.xml]

<?xml version="1.0" encoding="UTF-8"?>
<configuration scan="true" scanPeriod="30 seconds">
  <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
    <encoder class="ch.qos.logback.core.encoder.LayoutWrappingEncoder">
      <layout class="ch.qos.logback.contrib.json.classic.JsonLayout">
        <timestampFormat>yyyy-MM-dd'T'HH:mm:ss.SSS'Z'</timestampFormat>
        <timestampFormatTimezoneId>Asia/Seoul</timestampFormatTimezoneId>
        <appendLineSeparator>true</appendLineSeparator>
        <jsonFormatter class="ch.qos.logback.contrib.jackson.JacksonJsonFormatter">
          <prettyPrint>true</prettyPrint>
        </jsonFormatter>
      </layout>
    </encoder>
  </appender>

  <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
    <file>application/application.log</file>
    <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
      <fileNamePattern>application/application-%d{yyyy-MM-dd}.log</fileNamePattern>
      <maxHistory>30</maxHistory>
    </rollingPolicy>

    <encoder class="ch.qos.logback.core.encoder.LayoutWrappingEncoder">
      <layout class="ch.qos.logback.contrib.json.classic.JsonLayout">
        <timestampFormat>yyyy-MM-dd'T'HH:mm:ss.SSS'Z'</timestampFormat>
        <timestampFormatTimezoneId>Asia/Seoul</timestampFormatTimezoneId>
        <appendLineSeparator>true</appendLineSeparator>
        <jsonFormatter class="ch.qos.logback.contrib.jackson.JacksonJsonFormatter">
          <prettyPrint>true</prettyPrint>
        </jsonFormatter>
      </layout>
    </encoder>
  </appender>

  <logger name="org.springframework" level="error" additivity="false" />
  <logger name="org.apache" level="error" additivity="false" />
  <logger name="com.zaxxer" level="error" additivity="false" />
  <logger name="io.netty" level="error" additivity="false" />
  <logger name="reactor" level="error" additivity="false" />
  <logger name="com.xxxxx" level="debug" additivity="false">
    <appender-ref ref="FILE" />
  </logger>

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

 

[build.gradle]

compile "ch.qos.logback.contrib:logback-jackson:${props.getProperty('logback-jackson')}"
compile "ch.qos.logback.contrib:logback-json-classic:${props.getProperty('logback-json-classic')}"

- 여기서 사용 버전은 0.1.5 입니다.

 

사용한 timezone 은 ETC/UTC 가 아닌 Asia/Seoul 로 설정 했습니다.