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 * [J. B. Rainsberger](https://twitter.com/jbrains/statuses/167297606698008576) - "Worried that TDD will slow down your programmers? Don't. They probably need slowing down." 
 * [mr-mig/going-to-production](https://github.com/mr-mig/going-to-production) - A checklist for topics which should be covered before going to production.
 * [volanja/ansible_spec](https://github.com/volanja/ansible_spec) - a ruby gem that connect Ansible & Serverspec for Test Driven Server Configuration (or TDD).
+* [Jeff Geerling](https://www.jeffgeerling.com/blog/2016/how-i-test-ansible-configuration-on-7-different-oses-docker) - How I test Ansible configuration on 7 different OSes with Docker
 
 # UX / UI
 * [Kevin Marks](https://backchannel.com/how-the-web-became-unreadable-a781ddc711b6) - How the Web Became Unreadable