Hands-On Reactive Programming with Python

Getting started with Docker

Now that Docker is properly installed and configured, let's see how to use it. First, Docker manages all Linux distribution images that can be run. They are stored locally on the computer that runs these images. Retrieving a new image is done with the pull command, as can be seen in the following example:

$ docker pull hello-world

This will retrieve the hello-world image from the public Docker image registry (https://hub.docker.com/). The list of images available locally now contains the hello-world image, as can be seen in the following code:

$ docker imagesREPOSITORY       TAG       IMAGE ID       CREATED    SIZEhello-world     latest     2cb0d9787c4d    2 weeks ago  1.85kB

This image can now be executed. A running image is called an instance. ...