Is it possible at this time to configure a proxmox cluster such that a host machine can boot over the SAN (iSCSI or NFS) using a genericized, Read Only image, then once it boots, it gets its identity information via DHCP or TFTP or similar to know its hostname and any other essentials, then it automatically joins a configured cluster, creating it if for some reason it's the first machine in the cluster, and then starts running VMs pursuant to the cluster configuration?