Experiments part 2

modules/desktop/manifests/init.pp

 class desktop {
 
 	$packages = [
-		'kdm',
 		'lxde',
 		'iceweasel',
 		'iceweasel-l10n-*',
@@ -11,4 +10,13 @@ class desktop {
 		ensure => installed,
 	}
 
+	package { 'kdm':
+		ensure => installed,
+	}
+
+	package { 'lightdm*':
+		ensure => absent,
+		require => Package['kdm'],
+	}
+
 }

modules/system/manifests/init.pp

 class system {
 
 	$packages = [
-		'chrony',
 		'sudo',
 		'lsof',
 		'vim',
@@ -15,6 +14,19 @@ class system {
   
 	package { $packages:
 		ensure => installed,
-	}	
+	}
+
+
+	package { 'chrony':
+		ensure => installed,
+	}
+
+	service { 'chrony':
+		ensure => running,
+		enable => true,
+		hasstatus  => false,
+		hasrestart => true,
+		require => Package['chrony'],
+	}
 
 }