Playing With Busybox

Now that we have everything setup, it’s time to get our hands dirty. In this section, we are going to run a Busybox container on our system and get a taste of the docker run command.

To get started, let’s run the following in our terminal:

$ docker pull busybox

Note: Depending on how you’ve installed docker on your system, you might see a permission denied error after running the above command. If you’re on a Mac, make sure the Docker engine is running. If you’re on Linux, then prefix your docker commands with sudo. Alternatively, you can create a docker group to get rid of this issue.

The pull command fetches the busybox image from the Docker registry and saves it to our system. You can use the docker images command to see a list of all images on your system.

$ docker images
REPOSITORY              TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
busybox                 latest              c51f86c28340        4 weeks ago         1.109 MB