Here's a quick procedure for installing Spacewalk.
Good news everyone. CFEngine 3.7 has revamped packages promises making them simpler and more reliable. These new promises are now used in EFL with the bundle efl_packages_new. The bundle's parameter file looks like this:
If you are planning to move to RHEL7 you may have to change your kickstart and virt-install scripts. The virt-install changes will also apply to Debian based hosts.