connection: key_filename is a string, not an array

Signed-off-by: Loic Dachary <ldachary@redhat.com>

diff --git a/teuthology/orchestra/connection.py b/teuthology/orchestra/connection.py
index 3b26dfb5f08b6c428af159336f82d63e516d80a8..4863f14210f29bcb51b3e23b8192df49af10f0cb 100644 (file)
--- a/teuthology/orchestra/connection.py
+++ b/teuthology/orchestra/connection.py
@@ -89,8 +89,7 @@ def connect(user_at_host, host_key=None, keep_alive=False, timeout=60,
             key_filename = opts['identityfile']
 
     if key_filename:
-        key_filename = [os.path.expanduser(f) for f in key_filename]
-        connect_args['key_filename'] = key_filename
+        connect_args['key_filename'] = os.path.expanduser(key_filename)
 
     log.debug(connect_args)