Thus why libvirt was added, it works with KVM, Xen, VMware ESXi, QEMU etc... but yes most of the tools like ansible only support libvirt_lxc and libvirt_qemu to

Thus why libvirt was added, it works with KVM, Xen, VMware ESXi, QEMU etc... but yes most of the tools like ansible only support libvirt_lxc and libvirt_qemu today but it isn't too hard to use for any modern admin with automation experiance. Libvirt is the abstraction API that mostly hides the concrete implementation details. I haven't tried oVirt or the other UIs on top of libvirt, but it seems less painful to me than digging through the Proxmox Perl modules when I hit a limitation of their system, but most people may not. All of those UI's have to make sacrifices to be usable, I just miss the full power of libvirt/qemu/kvm for placement and reduced latency, especially in the era of p vs e cores, dozen's of numa nodes etc... I would argue for long lived machines, automation is the trick for dealing with 1000's of things, but I get that is not always true for others use-cases. I think some people may be supprised by just targeting libvirt vs looking for some web-ui.