Kubernetes · medium · solved in-browser (no VM needed) · 3 tiered hints
Write /home/player/svc.yaml: a ClusterIP Service named api that selects app: api and exposes two named ports — a port named http on 80 (targetPort 8080) and a port named metrics on 9090 (targetPort 9090). (Authored config, graded structurally — the engine isn't run here.)
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Open the challenge and an in-page editor appears — write your answer and tmpfs.tech grades it server-side against the same checks a real box would run. No VM, no install, no signup needed to try.
Author Pod, Deployment and Service manifests and reason about scheduling.
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Is it free? Yes — play as a guest, no signup required to start.
Do I need to install anything? No. Everything runs in your browser.
How is it graded? Automatically and deterministically — your work is checked against the exact rules the live box would apply.