Convert fig.yml to CoreOS formatted systemd configuration files
To convert any fig.yml into a set of CoreOS configuration files (in /media/system/units) just point the command to your fig.yml file and a directory to put your coreos files in:
sudo gem install fig2coreos
fig2coreos app-name fig.yml coreos-dir
By default, fig2coreos will assume you are running this locally with vagrant and VirtualBox installed, so it will create a Vagrantfile which you can run vagrant up in and have a CoreOS running locally with the equivalent of your fig.yml running in it.
cd coreos-dir
vagrant up
The fig2coreos command auto-generates etcd discovery registration and fleet integration as well, so you can inspect your app easily.
vagrant ssh
$ fleetctl list-units