Recommend running one process

[sciurus]

I think there's a number of reasons to run only one process. It lets us more reliably detect whether a container is still running everything we need it to, it lets us generate a coherent stream of logs, etc.

I'm unsure whether to explicitly mention that it's okay to run a single master process that manages its own worker processes (e.g. uwsgi). Another way to accomplish that might be to say "program" rather than "process".

[ckolos]

Can we clarify to say that while containers should only run one process at at time, they are able to do more than one thing depending on invocation?

[jbuck]

Yeah, maybe it's more "Each instance of a container should only run one process. If you need to run two processes, just create another instance of the container & run a different command"

[sciurus]

I like your wording jbuck, so I've swapped it in.

[jbuck]

Approving my own wording, yeah!