mgr/rbd_support: add user-friendly stderr message

... when the rbd_support module is not ready.

Fixes: https://tracker.ceph.com/issues/61688
Signed-off-by: Ramana Raja <rraja@redhat.com>
(cherry picked from commit 6351ef5c8e691e359b1bf913dde4dbc8a441be1d)

Conflicts:
	src/pybind/mgr/rbd_support/module.py
 - Above conflict was due to commit dcb51b0
   ("mgr/rbd_support: define commands using CLICommand") not in pacific

diff --git a/src/pybind/mgr/rbd_support/module.py b/src/pybind/mgr/rbd_support/module.py
index f7f2101cfb3cf0b4d95f9ac80b76b45f51371808..79944a1d82c5ff5b972635b75dc61b35952f181d 100644 (file)
--- a/src/pybind/mgr/rbd_support/module.py
+++ b/src/pybind/mgr/rbd_support/module.py
@@ -212,7 +212,8 @@ class Module(MgrModule):
 
     def handle_command(self, inbuf, cmd):
         if not self.module_ready:
-            return -errno.EAGAIN, "", ""
+            return (-errno.EAGAIN, "",
+                    "rbd_support module is not ready, try again")
         # ensure we have latest pools available
         self.rados.wait_for_latest_osdmap()