[hefeweizen]

Slight nitpick, but this articles deals with "Docker Swarm mode" [1], which is different from Docker Swarm [2].

[1] https://docs.docker.com/engine/swarm/

[2] https://github.com/docker/swarm

[3] Difference between Docker Swarm and Swarm mode: http://stackoverflow.com/questions/40039031/what-is-the-diff...