The following traceback has been reported multiple times downstream of puppet-nova (here are a few examples). https://bugzilla.redhat.com/show_bug.cgi?id=1044155 https://bugzilla.redhat.com/show_bug.cgi?id=1289761 https://bugzilla.redhat.com/show_bug.cgi?id=1368588 https://bugzilla…