The primary purpose of Docker-in-Docker was to help with the development of Docker itself. Many people use it to run CI (e.g. with Jenkins), which seems fine at first, but they run into many “interesting” problems that can be avoided by bind-mounting the ... (more…)

Today Container Registry is generally available, allowing you to deploy Docker images to Heroku. (more…)

Plugins are now the recommended way to extend the capabilities of Docker. In fact, certification requires it. This post sheds light on what plugins are, the problems they solve and the most common mistake to avoid. (more…)

With the routes up and tested, let's get this app deployed! (more…)

Have you heard about dotCloud? If you haven’t, I’m going to give you a hint: it is a PAAS company. Another hint: eventually, dotCloud open-sourced their container engine. That container engine became Docker. (more…)