[hibikir]

What we do at work is that we have our containers be in charge of talking 'out' on a given address and format for logs, and have things configured so that entire sets of machines end up speaking with the same log server (an ELK stack, in our case). The process monitoring is done per host: There are docker-aware tools that look at the host, and can peer into the container, to do this basic tracking.

People are not kidding through, when they say that everything gets very complicated. All the things that we did by convention and manual configuration in regular VMs that are babysat manually have to be codified and automated.

Docker is going to be a great ecosystem in 3 years, when the entire ecosystem matures. Today, it's the wild west, and you should only venture forth if having a big team of programmers and system administrators dedicated just to work on automation doesn't seem like a big deal.