Docker, since its introduction in 2013, has become a staple in tech stacks, though it remains underutilized in front-end development. This article highlights the author's initial challenges with containerization due to a lack of prior knowledge, leading to a prolonged task completion time. However, the experience eventually increased their confidence in managing containers and CI pipelines. The piece aims to introduce front-end developers to Docker's core concepts, facilitating smoother workflow transitions. It explains Docker's functionality by detailing key terminology and provides practical demonstrations, such as running basic Node.js and React applications within containers. The guide underscores the benefits of Docker, such as consistent application deployment across different environments, and offers insights into Dockerfile creation for building custom images.