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: 30/49
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, Medium, on
Exclude a Sidecar from VPA Using Per-Container Resource Policy
by Omkar Shelke
Configure a Vertical Pod Autoscaler (VPA) with a per-container resource policy that provides recommendations for the main container while excluding the sidecar container from any VPA-managed scaling.
Submissions: 10/13
Challenge, Medium, on
Mount Specific ConfigMap Keys as Files into a Node.js Deployment
by Omkar Shelke
A Deployment is failing because application configuration is missing. Mount only specific keys from an existing ConfigMap as files inside the Pod at the correct path so the application can start successfully.
Submissions: 9/19
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: 28/33