Focused hands-on problems designed to help you hone your DevOps or Server Side skills. Some challenges are more educational, while others are based on real-world scenarios. The platform provides hints and feedback for each challenge, including automated solution checks.
Learn how to build and publish an uncompressed container image - a helpful trick to optimize disk I/O for large images, especially when you can benefit from a fast internal network.
In this challenge, you will practice installing and configuring containerd: obtaining the release binaries, placing them in the correct locations, adding the container runtime and CNI plugins to the system, and starting a container with full networking support.
Learn how to build a secure, lightweight, and production-ready container image for a statically linked Go application by following this hands-on challenge full of practical tips and tricks.
Learn how to build a secure, lightweight, and production-ready Node.js container image for a SvelteKit application by following this hands-on challenge full of practical tips and tricks.
Learn how to build a secure, lightweight, and production-ready Node.js container image for a Nuxt application by following this hands-on challenge full of practical tips and tricks.
Can you make a container exit gracefully after the 'docker stop' command while preserving its extensible entrypoint mechanism?
This challenge focuses on debugging memory usage issues in a Go application deployed in a Kubernetes cluster. The goal is to ensure the application can handle moderate traffic without crashing, even when it runs with significantly constrained memory resources.
Learn how to build a secure, lightweight, and production-ready Node.js container image for a Next.js application by following this hands-on challenge full of practical tips and tricks.
Learn how to copy all image tags from one repository to another in an efficient way.