The correct answer is A: /var/log/pods/. When kubectl logs can’t retrieve logs (for example, API connectivity issues, auth problems, or kubelet/API proxy issues), you can often troubleshoot directly on the node where the Pod ran. Kubernetes nodes typically store container logs on disk, and a common location is under /var/log/pods/, organized by namespace, Pod name/UID, and container. This directory contains symlinks or files that map to the underlying container runtime log location (often under /var/log/containers/ as well, depending on distro/runtime setup).
Option B (~/.kube/config) is your local kubeconfig file; it contains cluster endpoints and credentials, not Pod logs. Option D (/etc/kubernetes/) contains Kubernetes component configuration/manifests on some installations (especially control plane), not application logs. Option C (/var/log/k8s/) is not a standard Kubernetes log path.
Operationally, the node-level log locations depend on the container runtime and logging configuration, but the Kubernetes convention is that kubelet writes container logs to a known location and exposes them through the API so kubectl logs works. If the API path is broken, node access becomes your fallback. This is also why secure node access is sensitive: anyone with node root access can potentially read logs (and other data), which is part of the threat model.
So, the best answer for where to look on the node for Pod logs when kubectl can’t retrieve them is /var/log/pods/, option A.
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