Mac as Swarm "client"?

I’ve been learning Docker Swarm lately and it’s super cool. I’m trying to get TLS working throughout the swarm, but right now my swarm “manager”, “ca” and “client” are all the same Linux machine. From both security and infrastructure standpoints, I’d like to split them apart. Now, splitting off “ca” won’t be difficult, but I’d like to figure out how to turn my Mac into the “client”. So how do I do that?

Issue Type: Configuration, I guess?
OS (servers): Ubuntu 14.04.4 x64 using Docker 1.11.2, hosted on DigitalOcean.
OS (client): OS X version 10.11.5 (15F34)

(N.B.: I’m using Docker for Mac beta, but I’m OK with using boot2docker or the Homebrew version of Docker, too.)

Has the following been referred?