[CentOS-virt] Can we get a copy of ks.cfg for varous images into /root/ks.cfg?

[Nico Kadel-Garcia]

I've recently been dealing with various CentOS images on AWS, and am
being forcibly reminded that the "/root/anaconda-ks.cfg" has only a
passing resemblance to whatever the kickstart configuration file
actually contained. But getting a copy of the actual "ks.cfg" is
invaluable for updating and testing variations of the kickstart setup,
especially when manipulating disk partitioning or package selection.

In particular, anaconda-ks.cfg fails to include any but the first
'%post' script and discards all comments that may have been in the
original ks.cfg file. Coupled with the problems of
system-config-kickstart, and you have no provenance for the kickstart
file that was actually *used* to create a particular system.

For people building kickstart based environments, what would it take
to get you to put this in your ks.cfg?

    %post
    cp /tmp/ks.cfg /mnt/sysimage/root/ks.cfg
    %end

For older releases, '%end' is not needed.

And before anyone asks, *YES* I've reached out to the anaconda
developers in the past about this. I can try again, but in the
meantime, it would really help me, and I think it would help others.

                           Nico Kadel-Garcia