Below is a brief explanation of the workflow of Docker usage :
* Since the Dockerfile is the source code of the image, everything starts with it
* Once it is created, the Dockerfile is used to build the image of the container. This image is only the compiled version of the Dockerfile
* This image is then redistributed using the registry, which is like a repository of images.
* Further, the image can be used to run containers. A container, while it is running, is very similar to a VM without the hypervisor.
