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Kubectl Logs and Exec

Debug live workloads: stream logs and run commands in pods.

  • kubectl logs
  • kubectl exec
  • crashed container
  • follow logs
  • kubectl cp

Kubectl Logs and Exec

Debug live workloads: stream logs and run commands in pods.

Commands

CommandWhat it does
kubectl logs -f deploy/apiFollow aggregated deployment logs
kubectl logs -p <pod>Previous (crashed) container logs
kubectl logs <pod> --since=10m --tail=200Bounded recent logs
kubectl exec -it <pod> -- shInteractive shell
kubectl cp <pod>:/app/out ./outCopy files from a pod

Example

kubectl logs -f deploy/api -n shop
kubectl logs -p api-7d9c5f6b9-abcde -n shop
kubectl exec -it api-7d9c5f6b9-abcde -n shop -- sh

FAQ

Logs are gone after restart — why?

kubelet keeps few rotated files; ship stdout to Loki/ES for anything beyond quick debugging.

exec fails with no shell?

Distroless images have none — use kubectl debug with an ephemeral debug container instead.

Întrebări frecvente

Logs are gone after restart — why?
kubelet keeps few rotated files; ship stdout to Loki/ES for anything beyond quick debugging.
exec fails with no shell?
Distroless images have none — use kubectl debug with an ephemeral debug container instead.

Kubernetes

Kubectl Config and Context
Point kubectl at the right cluster and switch contexts safely.
Kubectl Pods
Inspect pods, describe failures, and get a shell inside.
Kubectl Deployments
Create, update, and inspect Deployments that own your pods.
Kubectl Services
Expose pods stably with ClusterIP, NodePort, and LoadBalancer.