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.
Challenges contributed by the community members sharing their knowledge and expertise.
A Snake game Deployment and ClusterIP Service are already running in the snake namespace. Create a Traefik Ingress that serves the game over HTTPS using an existing cert-manager-issued TLS Secret.
Update a production NGINX ConfigMap to restrict TLS to v1.3 only, then verify the change enforces the security policy.
Prove that Kata Containers Pods run inside a dedicated VM with a separate guest kernel, completely isolated from the host kernel, by comparing kernel versions across runc and Kata runtimes.