A puppet manifest to disable the pe-puppet daemon and instead enable a cron job to run puppet with a random starting time. This will help avoid a thundering herd problem.

puppet_cron

$runinterval = 30 #minutes

$first_run = fqdn_rand($runinterval)
$second_run = $first_run + $runinterval

cron { 'cron.puppet':
   command => "/opt/puppetlabs/bin/puppet agent -t > /dev/null",
   user => "root",
   minute => [ $first_run, $second_run ],
}

# make sure we haven't started the puppet daemon ever
# this might break a report on an agent that triggers this via a daemonized run.
service { 'puppet':
  enable => false,
  ensure => stopped,
  require => Cron['cron.puppet'],
}