Challenges

Focused, hands-on problems for sharpening your DevOps and server-side skills. Some teach specific concepts while others mirror real-world scenarios. Every challenge includes hints, feedback, and automated solution checks.

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This challenge was prepared for you by the iximiuz Labs team.

Challenge on Containers, Kubernetes·Hard

Edit a File in a Running Kubernetes Pod: a Tricky Case

by Ivan Velichko

Can you edit a file in a running Kubernetes pod? What if there is no shell inside and the container's user lacks the write permission?

#debugging #slim-image #distroless #kubectl

This challenge was prepared for you by the iximiuz Labs team.

Challenge on Containers·Hard

Pick the Right Distroless Base Image For Your Application

by Ivan Velichko

Not all distroless images are created equal. Can you find the right base image for the application in this challenge?

#container-image #slim-image #distroless #docker

This challenge was prepared for you by the iximiuz Labs team.

Challenge on Kubernetes, Containers·Hard

Send a Signal to a Kubernetes App: a Non-Root Container Case

by Ivan Velichko

Learn how to send a signal to a Kubernetes app running in an unprivileged container without shell.

#ephemeral-container #debugging #slim-image #distroless