remove 'include sudo' because this would result in a duplicate definition if you

have in your site_sudo something like:

  class { 'sudo': deploy_sudoers => true }

instead we just declare a class dependency on the file in the define

manifests/access.pp

@@ -3,7 +3,7 @@ define sudo::access (
   $user = undef,
   $access = 'ALL=(ALL) ALL'
 ) {
-  include sudo
+
   if $user == undef {
     $real_user = $name
   } else {
@@ -16,5 +16,6 @@ define sudo::access (
     group   => 0,
     mode    => '0440',
     content => "# THIS FILE IS MANAGED BY PUPPET !\n${real_user}        ${access}\n",
+    require => Class['sudo']
   }
 }