Extension:Geoserver

Installation
The installation is described for Linux.

Install a Java Runtime
If you don't have a JRE already, you have to install one. You can skip this if you already have a compatible JRE.
 * Download a JRE from Sun, e.g. Java Runtime Environment (JRE) 5.0 Update 12, copy the .bin file to /opt.
 * cd /opt
 * chmod a+x jre-1_5_0_12-linux-i586.bin
 * ./jre-1_5_0_12-linux-i586.bin Follow the on-screen instructions

Install Geoserver

 * cd /opt
 * Download the binary edition of geoserver (use the .war version if you already have a Java Servlet Engine running), e.g. geoserver-1.5.1-bin.zip, wget http://downloads.sourceforge.net/geoserver/geoserver-1.5.1-bin.zip
 * unzip geoserver-1.5.1-bin.zip
 * export JAVA_HOME=/opt/jre1.5.0_12/
 * cd geoserver; bin/startup.sh

Install PostGIS (PostgreSQL with spatial data extension)
PostGIS is part of most Linux distributions. Install it using e.g. apt-get install postgis postgresql-8.1-postgis for Debian/Ubuntu or yum install postgis on Fedora.

Configre PostGIS

 * Log in as postgres user
 * Create a new database: createdb geowiki -U postgres
 * Install stored procedure support: createlang -U postgres plpgsql geowiki
 * Install GIS support: psql -U postgres geowiki < /usr/share/postgresql-8.1-postgis/lwpostgis.sql
 * Create the geodata table with the geoserver.psql script from the extension directory psql -U postgres geowiki < geoserver.psql

Configure Geoserver

 * Go to http://your server:8080/geoserver/
 * Log in to the admin account
 * Create a new namespace ( Config -> Data -> Namespace -> New ), e.g. wikipedia
 * Add a new datastore, pointing to the PostGIS DB created above
 * Add a new featuretype using the datastore

Configure MediaWiki
...

Helpful tools

 * GDAL
 * ogr2ogr
 * shp2pgsql