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, Easy, on Kubernetes, Security

Enforce TLSv1.3-Only Policy on a Production NGINX Deployment

by Omkar Shelke

Update a production NGINX ConfigMap to restrict TLS to v1.3 only, then verify the change enforces the security policy.

#cka #ckad #tls #configmap #deployment

This challenge was created by a community author. Community content is reviewed by the iximiuz Labs team on a best effort basis.

Challenge, Easy, on Kubernetes

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.

#ckad #cka #volumes #emptydir #deployment

This challenge was created by a community author. Community content is reviewed by the iximiuz Labs team on a best effort basis.

Challenge, Easy, on Kubernetes

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.

#cka #vpa #resources #oomkilled #deployment

This challenge was created by a community author. Community content is reviewed by the iximiuz Labs team on a best effort basis.

Challenge, Easy, on Kubernetes

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.

#kubernetes-101 #deployment #ckad #multi-container

This challenge was created by a community author. Community content is reviewed by the iximiuz Labs team on a best effort basis.

Challenge, Easy, on Kubernetes

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.

#cka #ckad #kubectl #api-deprecation #deployment

This challenge was created by a community author. Community content is reviewed by the iximiuz Labs team on a best effort basis.

Challenge, Easy, on Kubernetes

Manually Schedule Deployment Pods on a Specific Node

by Omkar Shelke

Create a Deployment with specific scheduling, labels, and port configuration, then expose it externally using a NodePort Service.

#cka #ckad #deployment #service #scheduling

This challenge was created by a community author. Community content is reviewed by the iximiuz Labs team on a best effort basis.

Challenge, Easy, on Kubernetes

Rolling Update and Rollback a Deployment

by Omkar Shelke

Update a Deployment with a new image using a rolling update strategy, then roll back to the previous revision and verify the rollout history.

#ckad #deployment #rolling-update #rollback

This challenge was created by a community author. Community content is reviewed by the iximiuz Labs team on a best effort basis.

Challenge, Easy, on Kubernetes

Convert Pod to Deployment with Secret Management

by Omkar Shelke

Convert an existing Pod manifest into a Deployment and move the hardcoded environment variables into a Kubernetes Secret.

#ckad #deployment #secret #pod #configuration

This challenge was created by a community author. Community content is reviewed by the iximiuz Labs team on a best effort basis.

Challenge, Easy, on Kubernetes

Provision and configure a PersistentVolume (PV) and PersistentVolumeClaim (PVC) for deployment.

by Omkar Shelke

Create a PersistentVolume with hostPath, bind it to a PersistentVolumeClaim, and mount it in a Deployment. This demonstrates storage management in Kubernetes.

#ckad #persistentvolume #pvc #volumes #deployment

This challenge was created by a community author. Community content is reviewed by the iximiuz Labs team on a best effort basis.

Challenge, Easy, on Kubernetes

Scale Deployment and Expose via NodePort Service

by Omkar Shelke

An existing e-commerce frontend application is running in Kubernetes. Scale the deployment to handle increased traffic and expose it using a NodePort Service with proper labeling.

#deployment #scaling #service #nodeport #ckad