Implement OpenVZ support or LXC

We need it very soon, we can't fully switch to container virtrualization because not sure that version with replaced unofficial kernel will be supported and not sure that container without kernel will be supported by RedHat. Why not just to add OpenVZ or LXC to official RHEL?

KVM is not so flexible as containers, if Linux virtualized on Linux.

And containers save a lot of resources with better performance.