> Honestly it's been 6 years now and I've never seen a company running any critical databases inside docker (but I've seen it for testing)

Oh. Maybe I misread--the above point seemed to be referring to the present, which is what I was addressing. 6 years ago is a different matter entirely. Heck, operators didn't exist then either. [1]

[1] https://www.infoq.com/articles/kubernetes-operators-in-depth...