Introduction
In a world where superpowers are the norm, the Superhero Academy faces a major challenge. The academy's ability to store and manage superpower knowledge is threatened by a lack of organization in their virtual environment. The renowned professor of superpowers, Dr. VirtualMind, has been tasked with ensuring that all the superpower images in the Docker universe are efficiently listed and managed. As part of this task, students are required to demonstrate their proficiency in listing Docker images.
Listing Docker Images
In this step, you will be required to list Docker images and perform some specific tasks related to image management.
Tasks
- List all Docker images currently available on the system.
- Filter the images to display only those tagged with "latest". You can use this command format
docker images --filter <filter_type>=<filter_scope>to filter images. - Sort the images by their creation date in descending order. You can use this command format
docker images --format <format> | grep <condition> | sort <option>to sort images.
Example
After completing the tasks, the output of the Docker images listing should display the images fulfilling the provided criteria.
List the all images:
REPOSITORY TAG IMAGE ID CREATED SIZE
ubuntu latest e34e831650c1 2 weeks ago 77.9MB
jenkins/jenkins latest ca7cca8fa4b0 8 months ago 466MB
hello-world latest d2c94e258dcb 8 months ago 13.3kB
gcr.io/k8s-minikube/kicbase v0.0.37 01c0ce65fff7 12 months ago 1.15GB
Filter the images to display only those tagged with "latest":
REPOSITORY TAG IMAGE ID CREATED SIZE
ubuntu latest e34e831650c1 2 weeks ago 77.9MB
jenkins/jenkins latest ca7cca8fa4b0 8 months ago 466MB
hello-world latest d2c94e258dcb 8 months ago 13.3kB
Sort the images by their creation date in descending order:
ubuntu latest 2024-01-12 01:08:11 +0800 CST 77.9MB
jenkins/jenkins latest 2023-05-24 03:54:22 +0800 CST 466MB
hello-world latest 2023-05-03 00:49:27 +0800 CST 13.3kB
Summary
In this challenge, the aim is to test the proficiency in Docker image management. The tasks are designed to enhance the understanding of listing, filtering, and sorting Docker images. This challenge provides an opportunity to reinforce the knowledge of Docker image management and its practical application in a real-world scenario.
