According to http://docs.openstack.org/api/openstack-object-storage/1.0/content/POST_updateObjectMeta__v1__account___container___object__storage_object_services.html#POST_updateObjectMeta__v1__account___container___object__storage_object_services-Request setting metadata to an object needs X-Object-Meta-{key} rather than X-Container-Meta-{key}.
Signed-off-by: Dmytro Iurchenko <diurchenko@mirantis.com>
Request Headers
~~~~~~~~~~~~~~~
-``X-Container-Meta-{key}``
+``X-Object-Meta-{key}``
:Description: A user-defined meta data key that takes an arbitrary string value.
:Type: String