Multiple processes in one container?

Ok, so I’m brand new to Docker, and haven’t even built my new home lab server yet.

I love the idea of Docker, and I’m starting to jot down ideas of how to use it.

Many of the things I’m thinking of already have containers built that I can use (yay!). But one thing I’d like to do, is put some small related things all in one container.

The top of this list is HTPC-Manager, PlexPy, and PlexRequests. To me, these are all small, and I link back to Py/Requests from Manager. Plus they all server a similar function - see what’s going on w/ my htpc stuff.

So . . . is there a shortish howto to get this going?