Download and unpack module
TOMCATDIR=/opt/tomcat cd ~ wget https://repo1.maven.org/maven2/biz/paluch/logging/logstash-gelf/1.11.0/logstash-gelf-1.11.0-logging-module.zip unzip logstash-gelf-1.11.0-logging-module.zip mv logstash-gelf-1.11.0/biz/paluch/logging/main/*.jar $TOMCATDIR/ext-libs/ rm -Rf ~/logstash-gelf-1.11.0
Add module to classpath
vi $TOMCATDIR/bin/catalina.sh
catalina.sh
... ... # Add tomcat-juli.jar to classpath # tomcat-juli.jar can be over-ridden per instance ... ... # Add GELF libs to classpath CLASSPATH=$CLASSPATH:$CATALINA_BASE/ext-libs/logstash-gelf-1.11.0.jar:$CATALINA_BASE/ext-libs/jedis-2.8.1.jar:$CATALINA_BASE/ext-libs/commons-pool2-2.4.2.jar ... ...
configure logging
vi $TOMCATDIR/conf/logging.properties
handlers = 1catalina.org.apache.juli.FileHandler, 2localhost.org.apache.juli.FileHandler, 3manager.org.apache.juli.FileHandler, 4host-manager.org.apache.juli.FileHandler, java.util.logging.ConsoleHandleri, biz.paluch.logging.gelf.jul.GelfLogHandler .handlers = 1catalina.org.apache.juli.FileHandler, java.util.logging.ConsoleHandler, biz.paluch.logging.gelf.jul.GelfLogHandler biz.paluch.logging.gelf.jul.GelfLogHandler.host=udp:elk.project.example.com.com biz.paluch.logging.gelf.jul.GelfLogHandler.port=12201 biz.paluch.logging.gelf.jul.GelfLogHandler.level=INFO biz.paluch.logging.gelf.jul.GelfLogHandler.version=1.1 biz.paluch.logging.gelf.jul.GelfLogHandler.extractStackTrace=true biz.paluch.logging.gelf.jul.GelfLogHandler.filterStackTrace=true biz.paluch.logging.gelf.jul.GelfLogHandler.timestampPattern=yyyy-MM-dd HH:mm:ss,SSSS #biz.paluch.logging.gelf.jul.GelfLogHandler.maximumMessageSize=8192 biz.paluch.logging.gelf.jul.GelfLogHandler.maximumMessageSize = 131072 biz.paluch.logging.gelf.jul.GelfLogHandler.facility=tomcat-uat biz.paluch.logging.gelf.jul.GelfLogHandler.originHost = tomcat1.project.example.com biz.paluch.logging.gelf.jul.GelfLogHandler.additionalFields=landscape=UAT biz.paluch.logging.gelf.jul.GelfLogHandler.additionalFieldTypes=landscape=String biz.paluch.logging.gelf.jul.GelfLogHandler.filter = none ...