The WEBrick server we configured in the previous section is not capable of handling a large number of nodes. To deal with a large number of nodes, a scalable web server is required. Puppet is a ruby process, so we need a way to run a ruby process within a web server. Passenger is the solution to this problem. It allows us to run the Puppet master process within a web server (apache by default). Many distributions ship with a puppetmaster-passenger package that configures this for you. In this section, we'll use the package to configure Puppet to run within passenger.

# puppet resource package puppetmaster-passenger ensure=installed
Notice: /Package[puppetmaster-passenger]/ensure: ensure changed 'purged'
 to 'present'
package { 'puppetmaster-passenger':
  ensure => '3.7.0-1puppetlabs1',
}