Function 'oslo_utils.timeutils.isotime()' is deprecated in version '1.6' and will be removed in a future version. We use datetime.datetime.isoformat() instead. For more informations: http://docs.openstack.org/developer/oslo.utils/api/timeutils.html#oslo_utils.timeutils.isotime Change-Id: I17384c369fdc7f86b37fd62370d800ed2463adbe Closes-Bug: #1514331