kubernetes-troubleshooting

Debug a Kubernetes pod stuck in CrashLoopBackOff by systematically checking pod events and container logs to identify application crashes or misconfigurations. This approach helps pinpoint failing commands or missing dependencies causing the restart loop.

A Kubernetes pod stuck in Pending indicates scheduling failures, often caused by insufficient cluster resources or unschedulable node constraints. Diagnosing this requires checking pod events and node health to identify resource pressure or affinity mismatches.

Resolve Kubernetes service and ingress networking failures by debugging connectivity issues across services and network policies. This process diagnoses misconfigured routing rules or missing endpoints that prevent traffic from reaching target pods.

Yes, you need kubectl to troubleshoot Kubernetes node health issues, as it provides the commands required to check node readiness and resource pressure. An understanding of Kubernetes resource objects is also necessary to interpret the diagnostics.

The best way to diagnose ImagePullBackOff errors in Kubernetes is to inspect pod events to reveal image pull failures. This troubleshooting step identifies missing image tags, incorrect registry names, or lacking authentication credentials.