Test Drive Your Dockerfiles with RSpec and ServerSpecDocker, a portable, lightweight runtime and packaging tool, is all the rage these days. It’s hard to go to any sort of tech meetup without overhearing people gushing to each other about how cool it is. I’d written some Dockerfiles but wanted to start test driving them. It’s actually fairly straightforward using RSpec and ServerSpec. Here’s how to TDD a Dockerfile that installs Node on Ubuntu. Star
