You want an upfront assurance that there's not going to be any bullshit. There's nothing that technically prevents a docker container from failing, of course. B

You want an upfront assurance that there's not going to be any bullshit. There's nothing that technically prevents a docker container from failing, of course. But seeing that someone took the extra step to make one is enough assurance. And it also protects the author from incoming "it doesn't work on my machine" bs.