Add support for strict variables

Author: robinbowes

manifests/master.pp

@@ -33,6 +33,7 @@
 #  ['dns_alt_names']            - Comma separated list of alternative DNS names
 #  ['digest_algorithm']         - The algorithm to use for file digests.
 #  ['generate_ssl_certs']       - Generate ssl certs (false to disable)
+#  ['strict_variables']         - Makes the parser raise errors when referencing unknown variables
 #
 # Requires:
 #
@@ -86,6 +87,7 @@
   $dns_alt_names              = ['puppet'],
   $digest_algorithm           = $::puppet::params::digest_algorithm,
   $generate_ssl_certs         = true,
+  $strict_variables           = false,
 ) inherits puppet::params {
 
   anchor { 'puppet::master::begin': }
@@ -122,6 +124,8 @@
     }
   }
 
+  validate_bool($strict_variables)
+
   Anchor['puppet::master::begin'] ->
   class {'puppet::passenger':
     puppet_passenger_port    => $puppet_passenger_port,
@@ -312,5 +316,11 @@
       value   => $digest_algorithm,
   }
 
+  ini_setting {'puppetmasterstrictvariables':
+      ensure  => present,
+      setting => 'strict_variables',
+      value   => $strict_variables,
+  }
+
   anchor { 'puppet::master::end': }
 }