Auto-Updating Distro profile in Cobbler

As part of a very short, unsuccessful Fedora 13 test, I found it advantageous to set up an auto-updating distro.  Okay, given the release behaviour of Fedora vs, say, RHEL, an auto-updating distro profile for a distro which doesn't actually update is kinda pointless.  Work with me here, though.

How to do this in Cobbler?  Create a repo, which we can update automatically, and link the distro to that:

cobbler repo add --name fedora13-os-x86_64 --arch x86_64 \
  --mirror rsync://mirrors.kernel.org/fedora/releases/13/Fedora/x86_64/os

cobbler import --name fedora13 --arch x86_64 \
  --path /var/www/cobbler/repo_mirror/fedora13-os-x86_64 \
  --available-as http://10.10.4.1/cblr/repo_mirror/fedora13-os-x86_64 \
  --breed redhat --kickstart /etc/cobbler/centos-X.ks

Too easy.  Blah blah, test often, blah blah, change the IP to suit, etc.