Docker containers are created by using [base] images. An image can be basic, with nothing but the operating-system fundamentals, or it can consist of a sophisticated pre-built application stack ready for launch.
[…]
Docker achieves this by creating safe, LXC (i.e. Linux Containers) based environments for applications called “docker containers”. These containers are created using docker images, which can be built either by executing commands manually or automatically through Dockerfiles.
[…]
Currently there are about a dozen different set of commands which Dockerfiles can contain to have docker build an image. In this section, we will go over all of them, individually, before working on a Dockerfile example.
[…]
Using the Dockerfiles is as simple as having the docker daemon run one. The output after executing the script will be the ID of the new docker image.
[…]
In this final section for Dockerfiles, we will create a Dockerfile document and populate it step-by-step with the end result of having a Dockerfile, which can be used to create a docker image to run MongoDB containers.
[…]
