The article provides a beginner-friendly guide on how to debug a Kubernetes app crash step-by-step. It covers understanding different crash types like CrashLoopBackOff, ImagePullBackOff, OOMKilled, and Completed, checking pod status, examining pod logs, executing into the pod if it’s still running, validating deployment manifests, checking events and nodes, and utilizing liveness and readiness probes. The author emphasizes using built-in tools like kubectl logs, describe, exec, and events for debugging in Kubernetes and suggests keeping YAML clean, validated, and version-controlled.