Puppet Hash Merge

$templatedistro = { architecture => ['i386', 'amd64'] }

    $distros = {
      'ubuntu_trusty' => $templatedistro + {
         'trusty' => {
           location     => 'http://archive.ubuntu.com/ubuntu',
           release      => 'trusty',
           repos        => ['restricted', 'multiverse']
         },
         'trusty-updates' => $templatedistro + {
           location     => 'http://archive.ubuntu.com/ubuntu',
           release      => 'trusty-updates',
           repos        => ['restricted', 'multiverse']
         }
      }
    }

#notify { 'test': message => $distros['ubuntu_trusty'],}

$distros['ubuntu_trusty'].each |String $keyvar, Hash $valuevar| {
  notice($keyvar)
  notice($valuevar['architecture'])
}