Add a server

For any MediaWiki installation:

• Install Ubuntu
• Install wikimedia-task-appserver
• Add the hostname to /usr/local/dsh/node_groups/mediawiki-installation on the ssh bastion host (zwinger)

Additionally, for a non-apache batch server:

• Stop apache: /etc/init.d/apache2 stop
• Disable apache by running update-rc.d -f apache2 remove
• Add to ganglia with:

apt-get -y --no-remove install gmond ganglia-metrics
cp -r /home/wikipedia/conf/gmond /etc
rm /etc/gmond.conf
ln -s gmond/misc.conf /etc/gmond.conf
/etc/init.d/gmond restart
/etc/init.d/gmetricd restart

Additionally, for a main pool apache server:

• Add the hostname to /usr/local/dsh/node_groups/apaches
• Add to nagios with cd /home/wikipedia/conf/nagios && ./sync
• Add to ganglia with:

apt-get install gmond ganglia-metrics
cp -r /home/wikipedia/conf/gmond /etc
rm /etc/gmond.conf
/home/wikipedia/conf/gmond/make-apache-symlink
/etc/init.d/gmond restart
/etc/init.d/gmetricd restart

• Add the server to /etc/pybal/apache on the LVS director for the apaches, currently lvs3. The weight should be proportional to the CPU count.