在安装kubernetes-dashboard的时候，可能会出现dashboard版本和kubernetes不一致的问题，具体的版本对应关系请查看
https://github.com/kubernetes/dashboard/releases
因此需要卸载掉dashboard
以下给出卸载命令
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kubectl -n kubernetes-dashboard delete $(kubectl -n kubernetes-dashboard get pod -o name)
删除找到所有的kubernetes-dashboard，
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kubectl delete deployment kubernetes-dashboard --namespace=kubernetes-dashboard
kubectl delete service kubernetes-dashboard --namespace=kubernetes-dashboard
kubectl delete role kubernetes-dashboard-minimal --namespace=kubernetes-dashboard
kubectl delete rolebinding kubernetes-dashboard-minimal --namespace=kubernetes-dashboard
kubectl delete sa kubernetes-dashboard --namespace=kubernetes-dashboard
kubectl delete secret kubernetes-dashboard-certs --namespace=kubernetes-dashboard
kubectl delete secret kubernetes-dashboard-csrf --namespace=kubernetes-dashboard
kubectl delete secret kubernetes-dashboard-key-holder --namespace=kubernetes-dashboard
最后删除命名空间
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kubectl delete namespace kubernetes-dashboard
如果dashbord不能删除的话，强制删除以下
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kubectl -n kubernetes-dashboard get pod -o name
kubectl delete pod kubernetes-dashboard-775cbc6f45-7mkqh -n kubernetes-dashboard --force --grace-period=0
//kubernetes-dashboard-775cbc6f45-7mkqh为获取的名称
最后再进行安装
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kubectl create -f recommended.yaml
