FEJ uses Log4j 2 as a logging framework. Its configuration is stored in the log4j2.xml file. For more information about configuration, please refer to Log4j 2 official documentation.
A SecurityPatternLayout is recommended to use with FEJ to hide passwords in the application log file:
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<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="INFO">
<Appenders>
<Console name="Console" target="SYSTEM_OUT">
<SecurityPatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss.SSS} [%-5level] [%t] %c{1.} - %msg%n">
<replace regex = "#554=(.*?)#" replacement="#554=*****#"/>
<replace regex = "\| 554=(.*?) \|" replacement="\| 554=***** \|"/>
<replace regex = "<Password>(.*?)</Password>" replacement="<Password>*****</Password>"/>
<replace regex = "\u0001554=(.*?)\u0001" replacement = "\u0001554=*****\u0001"/>
</SecurityPatternLayout>
</Console>
<File name="fixedgejLog" fileName="./logs/fixedgej.log">
<SecurityPatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss.SSS} [%-5level] [%t] %c{1.} - %msg%n">
<replace regex = "#554=(.*?)#" replacement="#554=*****#"/>
<replace regex = "\| 554=(.*?) \|" replacement="\| 554=***** \|"/>
<replace regex = "<Password>(.*?)</Password>" replacement="<Password>*****</Password>"/>
<replace regex = "\u0001554=(.*?)\u0001" replacement = "\u0001554=*****\u0001"/>
</SecurityPatternLayout>
</File>
<File name="adminDebugFile" fileName="./logs/fixedgej-admin.log">
<SecurityPatternLayout pattern="%d{ISO8601} %-5p (%t) [%c{1}(%M:%L)] %m%n">
<replace regex = "#554=(.*?)#" replacement="#554=*****#"/>
<replace regex = "\| 554=(.*?) \|" replacement="\| 554=***** \|"/>
<replace regex = "<Password>(.*?)</Password>" replacement="<Password>*****</Password>"/>
<replace regex = "\u0001554=(.*?)\u0001" replacement = "\u0001554=*****\u0001"/>
</SecurityPatternLayout>
</File>
</Appenders>
<Loggers>
<Root level="INFO">
<AppenderRef ref="Console"/>
</Root>
<Logger name="com.epam.fixengine" level="INFO" additivity="false">
<AppenderRef ref="Console"/>
<AppenderRef ref="fixedgejLog"/>
</Logger>
<Logger name="com.epam.fej" level="INFO">
<AppenderRef ref="fixedgejLog"/>
</Logger>
<Logger name="org.springframework" level="INFO"/>
<Logger name="com.epam.fej.cluster.lbc.service" level="INFO"/>
<Logger name="com.hazelcast" level="warn"/>
<Logger name="org.crsh" level="warn"/>
<Logger name="org.apache.kafka" level="info"/>
<Logger name="com.epam.fej.monitoring" level="INFO" additivity="false">
<AppenderRef ref="adminDebugFile"/>
</Logger>
</Loggers>
</Configuration>
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