Re: before buying these off the shelf how to guides?
Not sure there was any buying involved. Vendors almost invariably let you reprint their PR fluff pieces for free. Especially when you don't even edit them.
I'm not in DevOps, and I don't even play much with VMs. But this reads like the sort of stuff I use to copy wholesale for one of our newsletters back when I was still in the desktop publishing biz.
Biting the hand that feeds IT
