If someone is looking for informations how to interface this two solutions There is a great blog about that
You may find this also of interest: VMware Virtual SAN, NSX and OpenStack Interoperability :: https://www.youtube.com/watch?v=fh2-HTbGpyE&feature=youtu.be
Thanks Dmitri. This video was very helpful
This blog speaks specifically of the Openstack and NSX integration