Want a CentOS base box for Vagrant? Don't want a not-so-fresh feeling about downloading an untrusted one?

Create your own minimal CentOS base box for Vagrant in a few simple steps:

1. download a CentOS minimal ISO from your favorite mirror
2. run bash vagrant-centos majorversion minorversion (1) to create and start the VM and WEBrick web server
3. hit TAB at the CentOS menu, append ks=http://HOSTIP:8000/vagrant-centos.ks (2) (3), and hit ENTER
4. CTRL-C the web server AFTER the VM has finished installing and automatically shut down, then wait for it to package

(1) the CentOS and guest additions ISO locations are specified in variables, and default to a Mac OS X layout
(2) the Kickstart URL with dynamic host IP lookup is printed to the console
(3) the Kickstart script defaults to the 'America/Chicago' time zone, which you can edit or override with a provisioner

That's it! Tweak away. As-is, it only adds packages which are explicitly necessary for Vagrant, VirtualBox, and Puppet/Chef.

Notes: 64-bit VM, 512MB of RAM, 1GB of swap, LVM partitions, 'wheel' group, no SELinux (you're welcome!), no firewall