Re: Just exactly why is Oracle so pissed off?
Sorry, Hadoop started from a simple Google paper, not from Google code - and its developers weren't working for Google. Wikipedia reports one of the was working for Yahoo at the time.
Kubernetes is exactly the kind of project born inside which Google needs a community to expand and maintain - it's not critical I, and it can move developers to more lucrative areas. More or less what IBM did with Eclipse, for example.
It's never not good will, is always calculated enterprise revenues vs. costs.