If you want your vQFX to work on Openstack, you need to fix two things after uploading your image:
glance image-update –property hw_disk_bus=ide f9a8bfe1-6ac0-459a-a0ba-5cc6b7fe7c3d
glance image-update –property hw_vif_model=e1000 0d59cd91-6ee7-4912-a453-aa99691f279b