This change:
https://fedoraproject.org/wiki/Changes/AtomicHost
is presently blocked on:
https://fedorahosted.org/rel-eng/ticket/6119
Currently Fedora 22 will have Atomic cloud images and vagrant boxes (and an updated
tree).
It will be *possible* to install to bare metal using kickstart, but the Anaconda GUI
doesn't support either ostree or docker currently - the change above addresses the
ostree part.
There is currently no movement on the PXE-to-Live portion.
Any help appreciated.