mgr/volumes: subvolume ls command crashes if groupname as '_nogroup'

If --group_name=_nogroup is provided in the command then
throw error permission denied as it is internal group of ceph fs.

Fixes: https://tracker.ceph.com/issues/55759
Signed-off-by: Nikhilkumar Shelke <nshelke@redhat.com>

diff --git a/src/pybind/mgr/volumes/fs/operations/group.py b/src/pybind/mgr/volumes/fs/operations/group.py
index 152383c51d43a3e1ae3ccf4b080d7b4b285deebf..777721d5e412db91603d7f4aa98a8457a32b9e13 100644 (file)
--- a/src/pybind/mgr/volumes/fs/operations/group.py
+++ b/src/pybind/mgr/volumes/fs/operations/group.py
@@ -20,7 +20,8 @@ class Group(GroupTemplate):
     NO_GROUP_NAME = "_nogroup"
 
     def __init__(self, fs, vol_spec, groupname):
-        assert groupname != Group.NO_GROUP_NAME
+        if groupname == Group.NO_GROUP_NAME:
+            raise VolumeException(-errno.EPERM, "Operation not permitted for group '{0}' as it is an internal group.".format(groupname))
         self.fs = fs
         self.user_id = None
         self.group_id = None