Challenge, Easy, on
Perform In-Place Updates on a Kubernetes Deployment
by Omkar Shelke
Update container images, container names, update strategy, and replica count in an existing multi-container Kubernetes Deployment.
Submissions: 29/48
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.
Community Collection
Challenges contributed by the community members sharing their knowledge and expertise.
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: 27/32
Challenge, Easy, on
Resolve OOMKilled Errors by Reading VPA Memory Recommendations
by Omkar Shelke
Troubleshoot a Deployment where containers are repeatedly OOMKilled. Inspect Vertical Pod Autoscaler (VPA) recommendations and manually apply the recommended memory request and memory limit to stabilize the workload.
Submissions: 32/58
Challenge, Easy, on
Use kubectl-convert to Fix Deprecated APIs in a Kubernetes Manifest
by Omkar Shelke
Identify and fix deprecated API versions in a Kubernetes manifest using the kubectl-convert plugin, then deploy the updated manifest.
Submissions: 18/26