By @jwo for HoustonRB
I've been working in Docker for a couple of months, including an engagement to move a complicated multi-server setup to Docker, where you can `docker-compose up` and have a complete setup up and running.
It's useful for developing Rails 2.3 apps as well as orchestrating complicated deployments. I've found there's no need to use chef/ansible with Docker, but it can absolutely be done.
We'll create a Nginx+Rails(puma)+Postgres+Redis+Memcached server setup, and get it online on both our Macs and on a cheap'ish Digital Ocean droplet.