Puppet - passenger
From ICO wiki
sudo apt-get install apache2 ruby1.8-dev rubygems
sudo a2enmod ssl
sudo a2enmod headers
sudo service apache2 restart
sudo gem install rack passenger
sudo passenger-install-apache2-module
sudo apt-get install libapr1-dev
sudo apt-get install libaprutil1-dev
sudo mkdir -p /usr/share/puppet/rack/puppetmasterd
sudo mkdir /usr/share/puppet/rack/puppetmasterd/public /usr/share/puppet/rack/puppetmasterd/tmp