Reviewing Containerization Fundamentals

Even with some experience with Docker already, it’s worth the time to quickly review some of the fundamentals of working with containers and some of the inherent benefits of using them. We will first cover the fundamentals of isolation, portability, reusability, layering, and abstraction.

Isolation

Regarding isolation, Docker allows focusing on one process within the confines of a container. In the world of Docker, containers are immutable and are created from images that can be utilized directly from the Docker registry or can be used from a private registry for images that are custom-built for specific needs.