A Docker image is an immutable read-only file system that is a snapshot of the entire package of an application, including the dependencies, configuration, and settings.
In this chapter, you’ll learn about Dockerfile and its basics. We’ll build images using Dockerfiles and then view the running images. We’ll then run these images inside a Docker container, and you’ll discover how to attach the container to our local terminal input/output.
Docker Images
As mentioned previously, Docker images are read-only and immutable and created with the docker image build command ...