k8s集群部署dashboard可能遇到的问题

​

可能遇到的问题

1. pod一直重启

   $ kubectl --namespace=kube-system logs kubernetes-dashboard-1680927228-pdv45
   Using HTTP port: 9090
   Error while initializing connection to Kubernetes apiserver. This most likely means that the cluster is misconfigured (e.g., it has invalid apiserver certificates or service accounts configuration) or the --apiserver-host param points to a server that does not exist. Reason: open /var/run/secrets/kubernetes.io/serviceaccount/token: no such file or directory
   Refer to the troubleshooting guide for more information: https://github.com/kubernetes/dashboard/blob/master/docs/user-guide/troubleshooting.md
   

   解决办法：在dashboard-controller.yaml中添加.spec.template.spec.args项,如下所示：

   	args:
   	- --apiserver-host=http://10.67.34.140:8080
   

2. pod一直重启

   ==>进一步发现kubeadm默认不监听非安全端口8080。

   解决办法：

   vim /etc/kubernetes/manifests/kube-apiserver.yaml
   
   # 更改配置项
   
   - --insecure-port=8080
   - --insecure-bind-address=10.67.34.140   # 可选，默认监听127.0.0.1
   
   # 更改之后，重启kubelet生效
   systemctl restart kubelet
   

3. pod还是一直重启

   ==>进一步发现dashboard的pod调度到了node节点上。产生疑问：会不会是node节点的影响？

   解决办法：将dashboard的pod调度到master节点。

   # 添加.spec.template.spec.nodeSelector项
   nodeSelector:
   	node-role.kubernetes.io/master:
   

   到此我遇到的问题解决。