bundles/zfs: move scrub to systemd-timer

bundles/zfs/metadata.py

@@ -87,6 +87,10 @@ defaults = {
                 'when': 'weekly',
                 'command': '/usr/local/sbin/zfs-auto-snapshot weekly',
             },
+            'zfs-scrub': {
+                'when': 'Sun 02:00:00 UTC',
+                'command': '/usr/lib/zfs-linux/scrub',
+            }
         },
     },
     'zfs': {
@@ -135,20 +139,6 @@ if node.has_bundle('telegraf'):
     }
 
 
-@metadata_reactor.provides(
-    'cron/jobs/zfs-scrub',
-)
-def zfs_scrub_cronjob(metadata):
-    when = metadata.get('zfs/scrub/cron', '{} 0 * * sun'.format((node.magic_number % 60)))
-    return {
-        'cron': {
-            'jobs': {
-                'zfs-scrub': '{} root /usr/lib/zfs-linux/scrub'.format(when),
-            },
-        },
-    }
-
-
 @metadata_reactor.provides(
     'icinga2_api/zfs/services',
 )