Challenges

by  Omkar Shelke

Update container images, container names, update strategy, and replica count in an existing multi-container Kubernetes Deployment.

by  Omkar Shelke

Create a Kubernetes Job template for Team Aurora that runs a busybox command across multiple completions in parallel, with specific pod labels and container configuration.

by  Omkar Shelke

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.

by  Omkar Shelke

Perform a blue-green deployment by creating a new green version of a web application, then switch live traffic from blue to green with zero downtime by updating the Service selector.

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.

by  Rawkode Academy

The cluster is broken. Fix the plumbing to bring the app to life (you'll know it's working when Rawkode taps his watch at you), then ship the v2 image to unlock his victory dance.

by  Kaloyan Preslavski

Use emptyDir volumes to share data between containers, understand the volume lifecycle across container restarts and pod deletion, and explore memory-backed ephemeral storage.

by  Kaloyan Preslavski

Start with nodeSelector for simple node targeting, then upgrade to node affinity for expressive matching that nodeSelector cannot handle.

by  Ivan Velichko

Use Kubernetes image volumes to mount a static HTML artifact into an nginx Pod without an init container or a custom nginx image.

by  Kaloyan Preslavski

See how Kubernetes determines BestEffort, Burstable, and Guaranteed classes from resource configuration - and which pods get evicted first under pressure.