mgr/ssh: set UserKnownHostsFile

Set this to /dev/null, since we have StrictHostKeyChecking
off anyway.  This gets rid of messages to stderr every time we connect
to a new host.

Signed-off-by: Sage Weil <sage@redhat.com>

diff --git a/src/pybind/mgr/ssh/module.py b/src/pybind/mgr/ssh/module.py
index 4b9d83f8fd6a69271688fe6f213e3885460cc04e..5c9282adab2e56b369c0ce996c57ae1791117e0b 100644 (file)
--- a/src/pybind/mgr/ssh/module.py
+++ b/src/pybind/mgr/ssh/module.py
@@ -33,7 +33,8 @@ logger = logging.getLogger(__name__)
 
 DEFAULT_SSH_CONFIG = ('Host *\n'
                       'User root\n'
-                      'StrictHostKeyChecking no\n')
+                      'StrictHostKeyChecking no\n'
+                      'UserKnownHostsFile /dev/null\n')
 
 # high-level TODO:
 #  - bring over some of the protections from ceph-deploy that guard against