control-repo/site/profile/manifests/puppetmaster.pp

class profile::puppetmaster {

  class { 'hiera':
    hierarchy  => [
      "\"nodes/%{::trusted.certname}\"",
      "common",
    ],
    hiera_yaml => '/etc/puppetlabs/code/hiera.yaml',
    datadir    => "\"/etc/puppetlabs/code/environments/%{environment}/hieradata\"",
    owner      => 'root',
    group      => 'root',
  }
  
}