There is a bug in keystone v3 client as given here, https://bugs.launchpad.net/nova/+bug/1424462 Could you try using a v2 token for X-Auth-Token as see if you are facing the issue again?
There is a bug in keystone v3 client as given here, https:/ /bugs.launchpad .net/nova/ +bug/1424462
Could you try using a v2 token for X-Auth-Token as see if you are facing the issue again?