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·Medium

Edit a File in a Running Container: a Slim Base Image Case

by Ivan Velichko

Can you edit a file in a running container? What if there is no shell?

#debugging #slim-image #distroless #docker

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

Challenge on Containers·Medium

When a FROM scratch Container Image Is Not Good Enough

by Ivan Velichko

Learn on practice the limitations of FROM scratch images and the ways to mitigate them.

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

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

Challenge on Kubernetes, Containers, Networking·Medium

What Port Does This Kubernetes Pod Listen On?

by Ivan Velichko

Be a networking Sherlock Holmes - find out which port a Kubernetes app uses and send a request to it.

#debugging #slim-image #distroless #socket #ss

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

Challenge on Kubernetes, Containers·Medium

Send a Signal to a Kubernetes App: a Slim Container Case

by Ivan Velichko

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

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