running puppet resource on a host not managed by puppet

gistfile1.pp

$ puppet resource user justin
user { 'justin':
  ensure   => 'present',
  comment  => 'Justin Clayton',
  gid      => '20',
  groups   => ['_appserveradm', '_appserverusr', '_lpadmin', 'access_bpf', 'admin'],
  home     => '/Users/justin',
  password => '*',
  shell    => '/bin/zsh',
  uid      => '501',
}