Install Nginx 1.4.1 from the official repository

modules/base/manifests/init.pp

 class base {
   stage {'pre': before => Stage['main']}
   stage {'post': require => Stage['main']}
 
-  class {'apt':
-    stage => 'pre',
-    always_apt_update => true
-  }
-
   class {'users':
     stage => 'pre',
   }
 
+  class {'apt':
+    always_apt_update => true
+  }
+
+  Exec['apt_update'] -> Package <| |>
+
   include private::users, postfix
 
   package {['mercurial', 'vim', 'emacs']: ensure => present}
 
   file {'/etc/timezone':
     ensure => file,
     owner => root,
     group => root,
     mode => 0644,
     content => 'UTC'
   }
 
   file {'/etc/localtime':
     ensure => link,
     target => '/usr/share/zoneinfo/UTC'
   }
 
   class {'logrotate':
     stage => 'post'
   }
 }