bundles/backup-{client,server}: introduce

bundles/backup-client/metadata.py

@@ -0,0 +1,21 @@
+from hashlib import md5
+
+defaults = {
+    'backup-client': {
+        # unix user names cannot be longer than 32 characters.
+        # bundlewrap raises an error if the name is longer than 30 chars.
+        'user-name': 'c-' + md5(node.name.encode('UTF-8')).hexdigest()[:28],
+    },
+}
+
+
+@metadata_reactor
+def cron(metadata):
+    if metadata.get('backups/exclude_from_backups', False):
+        return {}
+
+    return {
+        'cron': {
+            'backup': '{} 1 * * *    root    /usr/local/bin/generate-backup',
+        },
+    }