Logs¶

https://theithollow.com/2020/02/12/kubernetes-logs-for-troubleshooting

kubelet service log¶

Any components deployed as systemd services can be found in the Linux journal on the host in which the service resides. This could include etcd logs, kubelet logs, or any of the components running as a service.

The kubelet runs on every node in the cluster. Logs can be accessed by using the journalctl command on the linux host:

journalctl -xeu kubelet
journalctl -xeu kubelet -n 100 --no-pager

container log¶

If using kubectl is possible

kubectl logs -h
kubectl logs <pod-name>
kubectl logs <pod-name> --tail=20
kubectl logs <pod-name> --since=1h
kubectl logs <pod-name> --timestamps=true

Get the logs through container runtime if kubectl is not available

docker logs <container-id>

kube-sheduler pod log¶

• kube-scheduler pod's log: same as using kubeclt logs

• kube-scheduler container's log: same as kube-scheduler pod's log.

• kube-controller-manager

• kube-apiserver