I recently spent some time building kickstart files. Something I hadn’t done much since 2008. The most noticeable change in the process is I’m older and fatter. I re/learnt a few things, and did my first ever python script.
First up, William Lam has plenty of articles on the topic, and the official vSphere installation doco is pretty good too. While testing, it’s much easier to link to a kickstart file or scripts from a webserver than directly embedded on the boot CD.