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TomcatInstallation_EC2.md

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Tomcat installation on EC2 instance Pre-requisites EC2 instance with Java v1.8.x Install Apache Tomcat Download tomcat packages from https://tomcat.apache.org/download-80.cgi onto /opt on EC2 instance Note: Make sure you change with the tomcat version which you download.

Create tomcat directory

cd /opt wget http://mirrors.fibergrid.in/apache/tomcat/tomcat-8/v8.5.35/bin/apache-tomcat-8.5.35.tar.gz tar -xvzf /opt/apache-tomcat-.tar.gz give executing permissions to startup.sh and shutdown.sh which are under bin. chmod +x /opt/apache-tomcat-/bin/startup.sh chmod +x /opt/apache-tomcat-/bin/shutdown.sh Note: you may get below error while starting tomcat incase if you dont install Java Neither the JAVA_HOME nor the JRE_HOME environment variable is defined At least one of these environment variable is needed to run this program

create link files for tomcat startup.sh and shutdown.sh ln -s /opt/apache-tomcat-/bin/startup.sh /usr/local/bin/tomcatup ln -s /opt/apache-tomcat-/bin/shutdown.sh /usr/local/bin/tomcatdown tomcatup Check point : access tomcat application from browser on port 8080

http://<Public_IP>:8080 Using unique ports for each application is a best practice in an environment. But tomcat and Jenkins runs on ports number 8080. Hence lets change tomcat port number to 8090. Change port number in conf/server.xml file under tomcat home

cd /opt/apache-tomcat-/conf

update port number in the "connecter port" field in server.xml

restart tomcat after configuration update

tomcatdown tomcatup Check point : Access tomcat application from browser on port 8090

http://<Public_IP>:8090 now application is accessible on port 8090. but tomcat application doesnt allow to login from browser. changing a default parameter in context.xml does address this issue #search for context.xml find / -name context.xml above command gives 3 context.xml files. comment () Value ClassName field on files which are under webapp directory. After that restart tomcat services to effect these changes. At the time of writing this lecture below 2 files are updated. /opt/tomcat/webapps/host-manager/META-INF/context.xml /opt/tomcat/webapps/manager/META-INF/context.xml

Restart tomcat services

tomcatdown
tomcatup Update users information in the tomcat-users.xml file goto tomcat home directory and Add below users to conf/tomcat-users.xml file Restart serivce and try to login to tomcat application from the browser. This time it should be Successful