Handle exception when user is not found in keystone.get_user

Refs #26240

salt/modules/keystone.py

@@ -49,6 +49,10 @@ Module for handling openstack keystone calls.
         salt '*' keystone.tenant_list profile=openstack1
 '''
 
+# Import Python Libs
+from __future__ import absolute_import
+import logging
+
 # Import third party libs
 HAS_KEYSTONE = False
 try:
@@ -58,6 +62,8 @@ try:
 except ImportError:
     pass
 
+log = logging.getLogger(__name__)
+
 
 def __virtual__():
     '''
@@ -699,7 +705,16 @@ def user_get(user_id=None, name=None, profile=None, **connection_args):
                 break
     if not user_id:
         return {'Error': 'Unable to resolve user id'}
-    user = kstone.users.get(user_id)
+    try:
+        user = kstone.users.get(user_id)
+    except keystoneclient.exceptions.NotFound:
+        log.error(
+            'Could not find user \'{0}\''.format(
+                user_id
+            )
+        )
+        return ret
+
     ret[user.name] = {'id': user.id,
                       'name': user.name,
                       'email': user.email,