Description of problem: As of RHEL7 LXC containers (and docker) seem to be a first class citizen. I would love to be able to convert from other virtulization systems (KVM, ESX, VBOX...) to LXC/Docker
I've talked with Matt, and we're not going to implement this. It's impractical for virt-v2v. HOWEVER: you can convert disk images (from virt-v2v or otherwise) to Docker using 'virt-tar-out'. We might want a better virt tool here, but it's not something for virt-v2v.