Skill Path (Easy, Medium)

Build Container Images Like a Pro

Building container images can be both an easy and a hard problem. Building just an image is usually as straightforward as replicating your local app build steps in a Dockerfile's RUN instructions. Building a small, maintainable, and secure image, on the other hand, may involve lots of considerations, elaborate techniques, and domain knowledge. And building an image that starts up quickly and behaves as expected in production is yet another level of complexity.

Container image composition and the main factors that affect it.

This learning path will take you from creating and pushing your very first container image, to analyzing the contents of the image, to picking an optimal base, and learning how to spot and troubleshoot runtime problems caused by flawed image composition. All of this is packed with engaging diagrams and hands-on exercises.

Happy building!

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How to Author Skill paths on iximiuz Labs

Instead of providing a subpar online editing experience, iximiuz Labs offers a helper CLI tool called labctl, allowing you to use your favorite text editor (or a full-featured IDE) to write content from the comfort of your local machine.

Install labctl CLI

curl -sf https://labs.iximiuz.com/cli/install.sh | sh

This will download and install the latest version of the labctl CLI. You only need to do this once per workstation.

Authorize labctl

labctl auth login

This will open a browser window asking you to authorize labctl to access your account. You need to do it after a fresh install of labctl and repeat it whenever the auth session expires.

Pull skill path content

labctl content pull skill-path build-container-images

This will create a local copy of the skill path content in a directory named build-container-images. You only need to do this once per skill path.

Stream your changes

labctl content push -fw skill-path build-container-images

Run this command in a separate terminal to continuously upload your changes to the server while editing the skill path in your favorite text editor or IDE.

You can also use labctl to create, list, and delete your content. Learn more about the available commands: labctl content --help