Logback examples

- Console e arquivo ao mesmo tempo (sem rotacionamento).xml

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
  <property
    name="logPattern"
    value="%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n"
  />

  <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
    <encoder>
      <pattern>${logPattern}</pattern>
      <charset>utf8</charset>
    </encoder>
  </appender>

  <property
    name="logFile"
    value="${user.home}/.jvm-class-agent/jvm-class-agent.log"
  />
  <appender name="FILE" class="ch.qos.logback.core.FileAppender">
    <file>${logFile}</file>
    <encoder>
      <pattern>${logPattern}</pattern>
      <charset>utf8</charset>
    </encoder>
  </appender>


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

  <logger name="com.mageddo.jvmti" level="DEBUG"/>

</configuration>

console logging.xml

<configuration>
	<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender"> <!-- ch.qos.logback.core.FileAppender -->
		<!-- encoders are assigned the type ch.qos.logback.classic.encoder.PatternLayoutEncoder by default -->
		<encoder>
			<!--<pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>-->
			<pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%-15.15thread] %3.-3level %-0.70logger{70}, m=%method, l=%line, %msg%n</pattern>
		</encoder>
	</appender>

	<root level="INFO">
		<appender-ref ref="STDOUT" />
	</root>
	
	<logger name="org.apache.spark" level="DEBUG" />
	
</configuration>

file rolling por tempo e tamanho.xml

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
  <property
    name="log_pattern"
    value="%d{yyyy-MM-dd HH:mm:ss.SSS} [%-15.15thread] %3.-3level \${PID:- } %-0.70logger{70} m=%method l=%line %msg%n}"
  />
  <!--
  <property name="LOG_FILE"
    value="${LOG_FILE:-${LOG_PATH:-${LOG_TEMP:-${java.io.tmpdir:-/tmp}}/}spring.log}"
  />
  -->
  <property
    name="log_file"
    value="${user.home}/.mageddo/${profile:-stg}/mining/log.log"
  />
  <appender name="console" class="ch.qos.logback.core.ConsoleAppender">
    <encoder>
      <pattern>${log_pattern}</pattern>
      <charset>utf8</charset>
    </encoder>
  </appender>

  <appender name="file" class="ch.qos.logback.core.rolling.RollingFileAppender">
    <file>${log_file}</file>
    <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
      <fileNamePattern>${log_file}-%d{yyyy-MM-dd-HH}.%i.log</fileNamePattern>
      <maxFileSize>1024MB</maxFileSize>
      <maxHistory>600</maxHistory>
      <totalSizeCap>20GB</totalSizeCap>
    </rollingPolicy>
    <encoder>
      <pattern>${log_pattern}</pattern>
      <charset>utf8</charset>
    </encoder>
  </appender>

  <root level="INFO">
    <appender-ref ref="console"/>
  </root>
  <root level="INFO">
    <appender-ref ref="file"/>
  </root>
</configuration>

por tempo.xml

<?xml version="1.0" encoding="UTF-8"?>
<!--
* %d{yyyy-MM-dd_HH-mm}: A cada minuto vai gerar um novo archive zipado, 
* Soh faz o rolling se acontecer um log logo depois do tempo virar, o log é a triger não o tempo
* maxHistory / totalSizeCap: Irá deletar os archives mais antigos depois que o numero passar de 120 ou o tamanho do diretorio passar de 2GB
* append: Sempre que a app restartar irá dar continuidade no log ao invés de truncar
* file: Criar com esse nome e renomar para o nome com data só depois de fazer rotacionamento

$ ls -lh /tmp/dps
total 24K
-rw-rw-r-- 1 typer typer 276 mar 12 15:36 log.log
-rw-rw-r-- 1 typer typer 591 mar 12 15:37 log.log.2023-03-12_15-36.log.gz
-rw-rw-r-- 1 typer typer 162 mar 12 15:38 log.log.2023-03-12_15-37.log.gz
-rw-rw-r-- 1 typer typer 560 mar 12 15:39 log.log.2023-03-12_15-38.log.gz
-rw-rw-r-- 1 typer typer 160 mar 12 15:40 log.log.2023-03-12_15-39.log.gz
-rw-rw-r-- 1 typer typer 160 mar 12 15:41 log.log.2023-03-12_15-40.log.gz
  
-->
<configuration>
  <property
    name="dpsLogPatternDefault"
    value="%d{yyyy-MM-dd HH:mm:ss.SSS} [%-15.15thread] %3.-3level %-0.70logger{70} m=%method l=%line %mdc %msg%n"
  />

  <property
    name="logFile"
    value="${dpsLogFile:-/tmp/dps/log.log}"
  />
  <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
    <file>${logFile}</file>
    <append>true</append>
    <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
      <fileNamePattern>${logFile}.%d{yyyy-MM-dd_HH-mm}.log</fileNamePattern>
      <maxHistory>120</maxHistory>
      <totalSizeCap>2GB</totalSizeCap>
    </rollingPolicy>
    <encoder>
      <pattern>${dpsLogPattern:-${dpsLogPatternDefault}}</pattern>
      <charset>utf8</charset>
    </encoder>
  </appender>

  <root level="INFO">
    <appender-ref ref="FILE"/>
  </root>

</configuration>

specify-app-name.xml

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
  <property
    name="CONSOLE_LOG_PATTERN"
    value="%d{yyyy-MM-dd HH:mm:ss.SSS} app=%property{app.name} \${LOG_LEVEL_PATTERN:-%5p} \${PID:- } [%15.15t] %-40.40logger{39} : %m%n}"
  />

  <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
    <encoder>
      <pattern>${CONSOLE_LOG_PATTERN}</pattern>
      <charset>utf8</charset>
    </encoder>
  </appender>

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

  <logger name="org.apache.spark" level="DEBUG" />

</configuration>