Challenges | iximiuz Labs

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

Diagnose Why a DaemonSet Skips the Control Plane Node

by Omkar Shelke

Troubleshoot and update a Kubernetes DaemonSet so that its Pods run on all nodes in the cluster, including the control plane.

daemonset scheduling cka troubleshoot

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

Kubernetes - PV Reclaim Policies and Recovery

by Kaloyan Preslavski

Observe the Delete and Retain reclaim policies in action, recover a Released PV by patching claimRef, and recover data by creating a new PV pointing to the same storage directory.

pv pvc storage ckad

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

Kubernetes - Dynamic Provisioning with StorageClass

by Kaloyan Preslavski

Explore how the DefaultStorageClass admission controller injects storage classes, explicitly name a StorageClass, switch the cluster default, and inspect where local-path stores volumes on the node.

storageclass pvc storage ckad

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

Kubernetes - PersistentVolume Static Binding Patterns

by Kaloyan Preslavski

Learn the three static PV binding patterns - generic match, label selector, and bidirectional claimRef - then use a no-provisioner StorageClass with WaitForFirstConsumer to pin storage to a specific node.

pv pvc storage ckad

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

Klustered: Level Four

by Rawkode Academy

The cluster is broken again. Get the Klustered deployment healthy and serving a quote, then ship the v2 image to unlock the victory dance.

klustered

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

Klustered: Level Two

by Rawkode Academy

Make sure the Klustered deployment is running the v2 tag and that you can visit the application to see a lovely quote and a video of me dancing.

klustered

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

Troubleshoot CrashLoopBackOff Caused by a Missing TLS Secret

by Omkar Shelke

A deployment is failing because the application cannot load its TLS certificate. Create the missing secret and mount it into the deployment so the Flask app can serve TLS traffic.

cka cks tls secrets troubleshooting

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

Add a Sidecar Log Tailer to an Existing Deployment

by Omkar Shelke

Add a sidecar container to an existing Deployment that tails a shared log file written by the main application container. Use a shared volume to make the log file available to both containers.

ckad cka sidecar volumes pods

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, Networking

Canary Deployment Using Kubernetes Gateway API Traffic Splitting

by Omkar Shelke

Implement a canary deployment strategy using the Kubernetes Gateway API. Route the majority of traffic to a stable version of a service while gradually shifting a small percentage to a new canary version.

cka gateway-api httproute canary

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, Networking

Cross-Namespace Gateway and HTTPRoute Binding with Kubernetes Gateway API

by Omkar Shelke

Configure a Kubernetes Gateway API setup with the Gateway in a dedicated infrastructure namespace and HTTPRoute in the application namespace, using path-based routing to expose railway platform services.

cka gateway-api httproute nginx