Challenge, Easy, on
Troubleshoot an Image Conversion Daemon
An image conversion daemon was installed from a vendor package, but it fails to start. Diagnose why the binary cannot be loaded and fix the installation.
Submissions: 42/56
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.
Official Collection
Challenges crafted by iximiuz Labs to help you master DevOps and Server Side topics.
Challenge, Easy, on
Troubleshoot a Log Shipping Daemon That Refuses to Start
A system daemon crashes on startup with a cryptic, non-actionable error message. Investigate the failure, identify its root cause, and get the service running.
Challenge, Easy, on
Docker 101: Tag and Push Container Images to Registries
Re-tag local container images with fully-qualified references and publish them to different registries using the 'docker tag' and 'docker push' commands.
Submissions: 45/54
Challenge, Easy, on
Docker 101: Pull a Container Image for a Specific Platform
Pull a container image built for a non-native CPU architecture using the 'docker pull --platform' flag.
Submissions: 45/49
Independent Authors
Challenges from outstanding independent authors proudly hosted by iximiuz Labs.
eBPF Challenge for Beginners
In this challenge, you’ll debug and fix a deliberately “broken” eBPF program, then prove it’s running by identifying its program and map IDs. Along the way, you’ll explore bpftool, check which helpers are supported, and dig into details like the UID of the loader. Finally, you’ll test your knowledge of eBPF maps by recalling the flag that only inserts a key if it doesn’t already exist.
Submissions: 105/320
Dagger: Working with Secrets
Get hands-on with reading secrets from different providers and using them in your Dagger pipelines.
Submissions: 6/29
Challenge, Easy, on
Dagger: Module Dependencies
Learn how to install, update and uninstall Dagger module dependencies.
Submissions: 3/8
Community Collection
Challenges contributed by the community members sharing their knowledge and expertise.
Kubernetes Ingress: Expose Multiple HTTP Backends the Imperative Way
Managing HTTP routing with Kubernetes Ingress resources the imperative way - host-based routing across namespaces, path-based routing, and a catch-all rule.
Challenge, Easy, on
Configure a Memory-Backed emptyDir Volume with a Size Limit
by Omkar Shelke
A Deployment is using a disk-backed emptyDir volume. Convert it to a memory-backed tmpfs volume for better performance — but make sure to set a size limit to prevent the Pod from exhausting the node's RAM.
Submissions: 21/26
Challenge, Easy, on
The SED command : Survival Guide - What You Must Know
Master **sed**, the essential stream editor for Linux SysAdmins. Progress through 10 tasks: simple & global substitution, regex patterns, line ranges, deletion, insertion, ... Work with realistic Rocky Linux system files in /home/laborant/sed_challenge/.
Submissions: 38/79
Challenge, Easy, on
Kubernetes Pod Lifecycle Fundamentals
by Adithya G
Practice the fundamental lifecycle of a Kubernetes Pod: creation, inspection (IP, node), interaction (executing commands, checking logs), and deletion.
Submissions: 91/266