kubelet服务未启动

Question

运行kubectl get node等命令时，出现以下错误：

与服务器6443的连接被拒绝-您是否指定了正确的主机或端口？

我运行了systemctl status kubelet.service，并收到以下状态：

root@k8s-l2bridge-ma:~# sudo systemctl status kubelet.service

● kubelet.service - kubelet: The Kubernetes Node Agent
   Loaded: loaded (/lib/systemd/system/kubelet.service; enabled; vendor preset: enabled)
  Drop-In: /etc/systemd/system/kubelet.service.d
           └─10-kubeadm.conf
   Active: activating (auto-restart) (Result: exit-code) since Tue 2020-06-16 11:46:05 UTC; 9s ago
     Docs: https://kubernetes.io/docs/home/
  Process: 28012 ExecStart=/usr/bin/kubelet $KUBELET_KUBECONFIG_ARGS $KUBELET_CONFIG_ARGS $KUBELET_KUBEADM_ARGS $KUBELET_EXTRA_ARGS (code=exited, status=255)
 Main PID: 28012 (code=exited, status=255)

Jun 16 11:46:05 k8s-l2bridge-ma systemd[1]: kubelet.service: Failed with result 'exit-code'.

如何排除故障并找出问题所在？我发现谷歌搜索的线索很少，但都没有解决问题。

Answer 1

只需在文件/etc/systemd/system/kubelet.service.d/10-kubeadm.conf上进行修改

Environment="KUBELET_SYSTEM_PODS_ARGS=--pod-manifest-path=/etc/kubernetes/manifests --allow-privileged=true --fail-swap-on=false"

然后执行命令：

 $ systemctl daemon-reload

 $ systemctl restart kubelet

看一下：fail-kubelet-service，kubelet-failed-start。