Kubernetes Logs - 如何获取kube-system pod的日志

Question

如何从kube-system pod获取日志？运行kubectl logs pod_name_of_system_pod不起作用：

λ kubectl logs kube-dns-1301475494-91vzs
Error from server (NotFound): pods "kube-dns-1301475494-91vzs" not found

以下是get pods的输出：

λ kubectl get pods --all-namespaces

NAMESPACE     NAME                                             READY     STATUS    RESTARTS   AGE
default       alternating-platypus-rabbitmq-3309937619-ddl6b   1/1       Running   1          1d
kube-system   kube-addon-manager-minikube                      1/1       Running   1          1d
kube-system   kube-dns-1301475494-91vzs                        3/3       Running   3          1d
kube-system   kubernetes-dashboard-rvm78                       1/1       Running   1          1d
kube-system   tiller-deploy-3703072393-x7xgb                   1/1       Running   1          1d

Answer 1

使用命名空间参数kubectl：kubectl --namespace kube-system logs kubernetes-dashboard-rvm78