I am using the basic setup of openstack (with packstack) on my laptop. By default I have qemu hypervisor added. I want to try and add ESXi hypervisor. Do I need a Vmware infrastructure for that? Do I need ESXi cluster? I just want to add one ESXi (I have RAM limitations) so that it appears in the hypervisor list of openstack. After that I want to see if I can launch instance on the top of that hypervisor. How can I achieve that? Can someone help me?

P.S I am using Mitaka version.