Can you download a BSD Jail image from an application's website, and have it 'just work'?

Yeah, surface simplicity seems to be the heart of what drives tech fads, even if the actual cost in labor and effort is exponentially larger on the back end.

MongoDB? Yes, don't worry about data design or normalization! Just throw that stuff in there, call it anything you want! Finally programmers are free from the tyranny of decent databases. I can't think of any downsides to that arrangement.

Docker? Yeah man, you can just say "docker pull redis" and then you don't even have to bother with Ubuntu getting in your grill with all of its apt-get shenanigans. It's awesome! Now how do we make that port accessible...

I work for a Fortune 50. I can't just download anything. When some third party curates a store of containers and guarantees their safety then maybe. Until then docker, rkt and the rest are a distant dream.

If anyone would provide those, then sure, why not? I could just give you my jails with database, web server, irc client and everything else as compressed archives, you could just unpack them, execute jail commands on them and have them running. This is pretty much that's there to is. No different than Docker, and yet, many more years used in production environments.

Don't know about BSD Jails, but you certainly could download OpenVZ images and run them.

it's called curlbashism.

No, but I do not see how it is related to my comment. Read more carefully. I didn't say that Jails and Zones did everything that Docker did, yeah DockerHub is cool and I gave them credits for that.

"nothing that we couldn't or haven't seen before"

Federation credits?

I ran into weird problems with FreeBSD Jails. Like cronjobs running twice, and `ezjail-admin console` not allocating a tty.