doc/mgr/plugins: add note about distinction between config and kv store

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

diff --git a/doc/mgr/plugins.rst b/doc/mgr/plugins.rst
index eb41dee3088b0a831e24704174b94c93a8bae633..2dc3b56c023abe29a6e143e975363b33ced777bb 100644 (file)
--- a/doc/mgr/plugins.rst
+++ b/doc/mgr/plugins.rst
@@ -68,6 +68,11 @@ Configuration options
 Modules can load and store configuration options using the
 ``set_config`` and ``get_config`` methods.
 
+.. note:: Use ``set_config`` and ``get_config`` to manage user-visible
+   configuration options that are not blobs (like certificates). If you want to
+   persist module-internal data or binary configuration data consider using
+   the `KV store`_.
+
 You must declare your available configuration options in the
 ``OPTIONS`` class attribute, like this: