Challenges

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.

Find challenges matching your interests...

Community Collection

Challenges contributed by the community members sharing their knowledge and expertise.

This challenge was created by a community author. Community content is reviewed by the iximiuz Labs team on a best effort basis.

Challenge, Medium, on Kubernetes, Security

Schedule a Maintenance Pod with Host Namespace Access Using Taints, Tolerations, and NodeSelector

by Omkar Shelke

Learn how to taint a node, schedule a Pod using nodeSelector and tolerations, and share the host network, PID, and IPC namespaces with the Pod.

cka cks scheduling taints tolerations

This challenge was created by a community author. Community content is reviewed by the iximiuz Labs team on a best effort basis.

Challenge, Medium, on Kubernetes, Security, Networking

Control Cross-Namespace Traffic Using NetworkPolicy

by Omkar Shelke

A multi-tier application runs across two namespaces. Learn how to isolate the application tier and restrict database access to only the application namespace.

ckad cka cks network-policy

This challenge was created by a community author. Community content is reviewed by the iximiuz Labs team on a best effort basis.

Challenge, Easy, on Containers, Security

Docker Scout: Remediating CVEs in a Container Image

by Felipe Cruz

Learn how to use Docker Scout to analyze and remediate vulnerabilities in a container image.

docker-scout docker