TDD is a popular technique in development teams that consists of this: you begin by writing tests that will fail because no code is actually written and then write the code that will make these tests pass. This way, we ensure that the code we write is already tested, that it really covers the tested area; if some regression was to happen someday, it would be immediately noticed. Here, we'll show a whole workflow, from development to production, where we deploy Docker on CentOS 7 and Ubuntu 16.04 using the TDD technique. Using Git branches, Chef tools, Test Kitchen, linting, and ServerSpec, we'll go through each and every step of a small project led by TDD principles. We'll do this to achieve maximum code quality among teams, from the development phase in the beginning to the final production environment.