I saw a post in the google group forum, is something already implemented? https://groups.google.com/forum/#!searchin/jclouds-dev/openstack$20quantum$20network/jclouds-dev/SL75LEhyEq4/2qTN2IAR64AJ
Looking at the Javadocs for NovaTemplateOptions [1] and the CreateServerOptions object [2], I suspect that this has indeed not been implemented yet.
One of the OpenStack experts on the list might have more information for you ;-)
ap[1] http://javadocs.jclouds.cloudbees.net/org/jclouds/openstack/nova/v2_0/compute/options/NovaTemplateOptions.html [2] https://github.com/jclouds/jclouds/blob/master/apis/openstack-nova/src/main/java/org/jclouds/openstack/nova/v2_0/options/CreateServerOptions.java
