CKA Practice: Upgrade Multi-Node Kubernetes Cluster
by Adam Leskis
This exercise tests your ability to safely upgrade a multi-node Kubernetes cluster from version 1.30 to 1.31 following the standard upgrade procedure.
Submissions: 44/145
Materials by Adam Leskis
Explore tutorials, challenges, courses, and more published by this author.
Challenges by Adam Leskis
See all →CKA Practice: Configure Network Policies To Restrict Traffic Between Pods
by Adam Leskis
This exercise tests your ability to configure kubernetes network policies to make sure only pods with specific labels can communicate with each other.
Submissions: 72/182
Playgrounds by Adam Leskis
See all →This playground was created by an iximiuz Labs user and is provided with no warranty.
Log Parser
A playground that generates one log parsing activity at a time, and regenerates a new one when you complete each activity. It uses authentic log formats such as nginx access logs and syslog entries to simulate real parsing needs. The operator avoids repeats until it has exhausted the full activity list, then starts a new randomized cycle. Github: https://github.com/lpmi-13/logparser-lab-operator
This playground was created by an iximiuz Labs user and is provided with no warranty.
OWASP K8s Vulnerable Cluster
This playground presents a k3s cluster that has randomized security vulnerabilities injected based on the OWASP Kubernetes Top 10 list for 2025. Run a scan to find what's wrong, then fix it and get another random vulnerability automatically injected. Play as long as you like!
This playground was created by an iximiuz Labs user and is provided with no warranty.
Tailscale Homelab Access
A multi-node K3s cluster to demo connecting and troubleshooting a homelab remotely via tailscale. All username/passwords are admin/admin123
This playground was created by an iximiuz Labs user and is provided with no warranty.
An R Mapping Tutorial for Linguistics
Follow along with an exciting ggplot2 tutorial to map out some cool linguistic stuff!