Web Applications

This guide shows how to build several web applications and servers. The basic concept is that of an Apache 2 webserver fronting several application servers (such as Apache Tomcat and Plone). We'll be hosting several domains and handling SSL. To avoid unnecessary rebuilding we'll attempt to reuse existing infrastructure.

mod_jk

The Apache to Tomcat connector

A very important bit of glue code otherwise Apache will seek your tomcat hosted Java applications in vain!

Note

apxs embeds values for CC and CFLAGS (amongst others) in itself which, given we're using Sun's instance of Apache, we need to override.

The current values for CC and CFLAGS are revealed by:

.../apxs -q -S CC

Note

As we'll be installing this module in /usr/apache2 we need to do the final install as root.

cd .../jakarta-tomcat-connectors-1.2.15-src
cd jk/native
./configure --with-apxs=/usr/apache2/bin/apxs

make APXSCFLAGS="$(.../apxs -q CFLAGS)" CC=gcc

su
make install

Tomcat Connectors 1.2.23

libtool can get annoyingly confused by configure. If you see make bail out with the message:

libtool: compile: unable to infer tagged configuration
libtool: compile: specify a tag with `--tag'

then libtool is confused. The problem is with one of the compiler variables, in this case CC. In particular libtool wants CC to be the exact same value as used previously, not just cc but /opt/SUNWspro/bin/cc:

cd .../tomcat-connectors-1.2.23-src
cd native
CC=$(/usr/apache2/bin/apxs -q CC) ./configure --with-apxs=/usr/apache2/bin/apxs
make

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