George Sexton wrote:
The way I do this is by using a CATALINA_HOME/CATALINA_BASE structure.

The tomcat distribution is the CATALINA_HOME directory.

You create another directory structure that becomes CATALINA_BASE.

In this directory structure, you would create:

temp
work
conf
conf/<EngineName>/<HostName>
logs
webapps
        
I also use a shared/lib directory to hold jar files that I want shared across 
all of my contexts. In 6.0.20 I had to add this to the catalina.properties file.

Now, Copy the CATALINA_HOME/conf files to CATALINA_BASE/conf and modify them as 
desired.

Before you invoke the startup script, you export the variables so the startup 
script sees them.

On my system it's something like:

CATALINA_HOME=/usr/local/apache-tomcat-6.0.20
CATALINA_BASE=/srv/tomcat

Now, upgrading to a new version is somewhat simpler because you only have to 
change the version # for CATALINA_HOME

If you're using log4j, it gets a little sticky because you have to put some 
property files in the common/classes directory and put log4j.jar in common/lib 
(at least in 5.5.27). I think you might be able to get around this by doing 
some edit to the common loader entry in catalina.properties, but I haven't had 
a chance to test it.

At any rate, I like this approach because you don't have to worry about finding 
and disabling all sample installations, admin apps, etc. If you have to revert 
to a previous version after making some changes, you don't have to worry about 
finding the edits and migrating them back to a previous version.

This is also a good solution if you want to have multiple tomcats on one 
machine. You have one CATALINA_HOME directory and as many CATALINA_BASE 
directories as you need.

Don't you mean the other way around? Multiple CATALINA_HOME directories, one for each TC installation, and a single CATALINA_BASE for the apps?

If not, then your description lost me.

Dave





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