Use a JSON list for docker log options.

Previously we expected you to comma separate, but this wasn't really
clear. Insted we will use an explicit JSON list going forward.

The comma separated list will be supported for backwards compatability.

1 files changed, 4 insertions, 1 deletions

diff --git a/filter_plugins/oo_filters.py b/filter_plugins/oo_filters.py
index 57c14e9a3..3da4562ac 100644
--- a/filter_plugins/oo_filters.py
+++ b/filter_plugins/oo_filters.py
@@ -259,8 +259,11 @@ class FilterModule(object):
 
     @staticmethod
     def oo_split(string, separator=','):
-        """ This splits the input string into a list
+        """ This splits the input string into a list. If the input string is
+        already a list we will return it as is.
         """
+        if isinstance(string, list):
+            return string
         return string.split(separator)
 
     @staticmethod