For system, network and cloud administrators
I came across situations where I needed tot test which Docker image would be most suitable for a particular set of needs and one of those metrics that I used was disk space. I remember the more I used to get started with Docker, the more I was curious to see which Docker images consume more or less resources.
In order to view the IP of a Docker container, you can execute the following command:
docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' container-ID-or-name
In the process of building a Docker image, you might find yourself in the situation where a “none” image is dangling in your Docker registry, as seen below:
In order to remove the “none” Docker images, you can use:
docker rmi -f $(docker images --filter "dangling=true" -q --no-trunc)
The shell is one of the most important parts of a Unix system and that’s why developers and admins around the world rely so much on it. It’s basically a program inside which the user can run commands and create shell scripts. Unix programmers used the shell as a programming environment too. In fact, a lot of the important parts of the Unix system itself are … shell scripts.