Validate status of cron resource

This makes sure that the supported value is used for the parameters
which determine the ensure property of a cron resource type.

Change-Id: I1abe90a8f060804c6cc1660158360dfeac4495ad

manifests/cron/fernet_rotate.pp

@@ -54,14 +54,14 @@
 #   Defaults to $::keystone::params::user
 #
 class keystone::cron::fernet_rotate (
-  $ensure   = present,
-  $minute   = 1,
-  $hour     = 0,
-  $monthday = '*',
-  $month    = '*',
-  $weekday  = '*',
-  $maxdelay = 0,
-  $user     = $::keystone::params::user,
+  Enum['present', 'absent'] $ensure = present,
+  $minute                           = 1,
+  $hour                             = 0,
+  $monthday                         = '*',
+  $month                            = '*',
+  $weekday                          = '*',
+  $maxdelay                         = 0,
+  $user                             = $::keystone::params::user,
 ) inherits keystone::params {
 
   include keystone::deps

manifests/cron/trust_flush.pp

@@ -61,16 +61,16 @@
 #   Defaults to $::keystone::params::user
 #
 class keystone::cron::trust_flush (
-  $ensure           = present,
-  $minute           = 1,
-  $hour             = '*',
-  $monthday         = '*',
-  $month            = '*',
-  $weekday          = '*',
-  Integer $maxdelay = 0,
-  Integer $age      = 0,
-  $destination      = '/var/log/keystone/keystone-trustflush.log',
-  $user             = $::keystone::params::user,
+  Enum['present', 'absent'] $ensure = present,
+  $minute                           = 1,
+  $hour                             = '*',
+  $monthday                         = '*',
+  $month                            = '*',
+  $weekday                          = '*',
+  Integer $maxdelay                 = 0,
+  Integer $age                      = 0,
+  $destination                      = '/var/log/keystone/keystone-trustflush.log',
+  $user                             = $::keystone::params::user,
 ) inherits keystone::params {
 
   include keystone::deps