Have you ever spent hours trying to get an open-source package to build from source? Docker is a free tool that helps application developers solve this problem by allowing them to package their software and its dependencies into a Linux container. In recent years, Docker has seen a rapid rise in popularity, especially in the web application space. ROS has also recently started providing Docker images and documentation on how to use them. This post explores how I used Docker to containerize the Bobble-Bot Gazebo simulation.