But I got an error:
Ah, sorry to hear :-( Glad we're getting closer, though.Could you enable header and wire logging [1], run the request again and please put the output (with sensitive information removed) into a Gist or Pastie?
That will hopefully give us a bit more insight into the exact request being made, and why your Openstack installation isn't happy with it.
Regards ap [1] https://jclouds.apache.org/reference/logging/