radicale: Stop service during backup and restore

Signed-off-by: Sunil Mohan Adapa <sunil@medhas.org>
Reviewed-by: Joseph Nuthalapati <njoseph@riseup.net>

plinth/modules/radicale/__init__.py

@@ -22,6 +22,8 @@ version = 2
 
 managed_packages = ['radicale', 'uwsgi', 'uwsgi-plugin-python3']
 
+managed_services = ['uwsgi']
+
 _description = [
     format_lazy(
         _('Radicale is a CalDAV and CardDAV server. It allows synchronization '

plinth/modules/radicale/manifest.py

@@ -79,4 +79,9 @@ clients = validate([{
     }]
 }])
 
-backup = validate_backup({'data': {'directories': ['/var/lib/radicale/']}})
+backup = validate_backup({
+    'data': {
+        'directories': ['/var/lib/radicale/']
+    },
+    'services': ['uwsgi']
+})