Hi Chad.
There is no open source version of vCloud director. vCloud director Appliance is for evaulation and demonstration purpose, VMware do not recommend to use Appliance in production Environment.
To install vCloud in a production environment, you will need a RHEL OS with vCloud binaries.
Below link will take you to download page https://my.vmware.com/web/vmware/info/slug/datacenter_cloud_infrastructure/vmware_vcloud_director/5_1?rct=j&q=&esrc=s&frm=1&source=web&cd=1&ved=0CDIQFjAA&url=http://www.vmware.com/go/download/vcloud-director&ei=iLx2Udm2HIz8rAfaooC4Bw&usg=AFQjCNFkABOpWAUkxqrEX2V9mRHPwStiDg&sig2=9nv1LL1tRq3fv9ImFj6DLg&bvm=bv.45580626,d.bmk&cad=rja