Edit 2015-01-07: Updated article to reflect changes in swarm. Thanks Rael!
Docker Swarm was announced at the first European DockerCon. Swarm is a pluggable cluster manager with a simple scheduler.
It’s currently not super easy to set up, so here is how I did it.
Background The swarm executable discovers hosts by reading entries from the discovery url, discovery-stage.hub.docker.com/v1/clusters/TOKEN. Sample output:
["22.214.171.124:2375","126.96.36.199:2375","188.8.131.52:2375"] As you can see, this is just a list of IP/port combinations.