Challenges

Focused, hands-on problems for sharpening your DevOps and server-side skills. Some teach specific concepts while others mirror real-world scenarios. Every challenge includes hints, feedback, and automated solution checks.

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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

Kubernetes Workloads: Pods

by Kaloyan Preslavski

Build a Pod from scratch, exec into it, try to edit an immutable field, explore all three restart policies, and observe graceful termination.

#pod #workloads #ckad

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, Containers

Customize nginx Startup Behavior with a postStart Lifecycle Hook

by Omkar Shelke

Create a Pod that uses a postStart lifecycle hook to write a custom message to the nginx welcome page, expose it via a NodePort Service, and verify the hook ran successfully.

#ckad #cka #pod #lifecycle-hooks

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

Copy a File into a Running Pod to Serve a Custom NGINX Page

by Omkar Shelke

A Pod is running nginx and exposed via NodePort. Copy a local HTML file into the running Pod so NGINX serves it as the default homepage using only imperative commands.

#ckad #cka #kubectl #pod

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

Disable ServiceAccount Token Automounting in a Pod

by Omkar Shelke

Create a Pod that does not mount the default ServiceAccount token, preventing it from accessing the Kubernetes API server.

#cka #ckad #serviceaccount #pod

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

Enforce Resource Policies Using LimitRange

by Omkar Shelke

Create a LimitRange in a namespace to enforce minimum, maximum, and default resource constraints for containers, then deploy a compliant Pod.

#cka #ckad #limitrange #resources #pod

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

Manage Static Pod Lifecycle on a Cluster Node

by Omkar Shelke

Create a static pod named mcp-grafana on node-01 and delete an existing pod from the cluster.

#static-pod #cka #pod #kubelet

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

Grant a ServiceAccount Access to a Specific Secret Using RBAC

by Omkar Shelke

Create a ServiceAccount with permissions to access only that specific Secret using RBAC resourceNames restriction.

#cka #ckad #rbac #serviceaccount #pod

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

Pod, Service, and Cross-Namespace DNS Resolution

by Omkar Shelke

Create a Pod with ConfigMap volume mount, expose it via ClusterIP Service, and test connectivity from another namespace. This combines multiple Kubernetes concepts.

#ckad #pod #service #configmap #dns

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

Set ConfigMap Environment Variables in a Pod

by Omkar Shelke

Inject ConfigMap values as environment variables into a Kubernetes Pod.

#kubernetes-101 #cka #ckad #configmap #pod