Technology is ever changing. I want to keep my skills up to date. So I wanted to start to incorporate containerization into my arsenal. In doing so, I decided to start where I always have started (after "Hello World" that is), with patterns. There is no use in reinventing the wheel. Also, patterns establish a common vocabulary, allowing you to communicate with others. To get my feet wet again I decided to start with a simple pattern that I have seen, the Sidecar Pattern.