snap-schedule: reject invalid retention specs

Signed-off-by: Jan Fajerski <jfajerski@suse.com>

diff --git a/src/pybind/mgr/snap_schedule/fs/schedule.py b/src/pybind/mgr/snap_schedule/fs/schedule.py
index 225bbf089750cca80b7b8b61934e82511894b785..233795fac835d3898e874b02677133454218a15d 100644 (file)
--- a/src/pybind/mgr/snap_schedule/fs/schedule.py
+++ b/src/pybind/mgr/snap_schedule/fs/schedule.py
@@ -323,6 +323,8 @@ class Schedule(object):
             if not row:
                 raise ValueError(f'No schedule found for {path}')
             retention = parse_retention(retention_spec)
+            if not retention:
+                raise ValueError(f'Retention spec {retention_spec} is invalid')
             log.debug(f'db result is {tuple(row)}')
             current = row['retention']
             current_retention = json.loads(current)