Image for testing clns/node-commit-msg#1. It runs Ubuntu 14.04 and includes all the validator requirements (Python 2.7, JDK 8) and io.js v1.7.1 with the angular guidelines config.
docker run --rm -it clns/commit-msg-issue1 bash
nvm use iojs-v1.7.1
git commit -m "this is a test commit"
This will download the image and run a temporary container leaving you in a bash shell in the sample repository at /root/commit-msg, use iojs-v1.7.1 and commit with a sample message.