Linode: how to install mod_jk, tomcat behind apache

This "tutorial" is for Ubuntu 10.04 LTS (Lucid).
This is how you would set up Tomcat6 behind Apache2 via mod_jk

I am assuming that you have apache2 installed and tomcat6 installed. I also assume you have deployed and can find your tomcat app possibly on port 8080 of your linode.

1. Install mod_jk:

   apt-get install libapache2-mod-jk

2. Create workers.properties in /etc/apache2/ and add the following into it:

   # this lives in /etc/apache2/workers.properties
   # workers.properties - ajp13
   #
   # List workers
   worker.list=worker1
   
   # Define worker1
   worker.worker1.port=8009
   worker.worker1.host=localhost
   worker.worker1.type=ajp13
   

3.  Edit your apache2 config in /etc/apache2/apache2.conf and add this to the end:
   

   # tomcat connector stuff:
   JkWorkersFile /etc/apache2/workers.properties
   # Where to put jk shared memory
   JkShmFile     /var/log/apache2/mod_jk.shm
   # Where to put jk logs
   JkLogFile     /var/log/apache2/mod_jk.log
   # Set the jk log level [debug/error/info]
   JkLogLevel    info
   # Select the timestamp log format
   JkLogStampFormat "[%a %b %d %H:%M:%S %Y] 
   

4. In your /etc/apache2/sites-enabled/ dir find the vhost you want to use tomcat and edit it, at the end of the vhost declaration put:
   

   #Everything under root goes to tomcat
   JkMount  /* worker1
   #html files should be served by apache2
   JkUnMount /*.html worker1
   

5. Edit /etc/tomcat6/server.xml and make sure that the ajp connector is uncommented:
   

   <connector port="8009" protocol="AJP/1.3" redirectport="8443" />
   

6. restart tomcat: /etc/init.d/tomcat6 restart
7. restart apache: /etc/init.d/apache2 restart
8. navigate to yourdomain.com/ and you should be all tomcatted