k8s dashboard token 生成/获取

创建示例用户

kubernetes/dashboard/blob/master/docs/user/access-control/creating-sample-user.md#creating-sample-user" target="_blank" rel="noopener nofollow noopener noreferrer">

在本指南中，我们将了解如何使用 Kubernetes 的服务帐户机制创建新用户、授予该用户管理员权限并使用与该用户绑定的承载令牌登录仪表板。

对于以下每个和的代码片段ServiceAccount，ClusterRoleBinding您都应该将它们复制到新的清单文件(如)中，dashboard-adminuser.yaml并使用kubectl apply -f dashboard-adminuser.yaml来创建它们。

创建服务帐号

kubernetes/dashboard/blob/master/docs/user/access-control/creating-sample-user.md#creating-a-service-account" target="_blank" rel="noopener nofollow noopener noreferrer">

我们首先admin-user在命名空间中创建具有名称的服务帐户。kubernetes-dashboard

apiVersion: v1
kind: ServiceAccount
metadata:name: admin-usernamespace: kubernetes-dashboard

创建 ClusterRoleBinding

kubernetes/dashboard/blob/master/docs/user/access-control/creating-sample-user.md#creating-a-clusterrolebinding" target="_blank" rel="noopener nofollow noopener noreferrer">

kops在大多数情况下，使用kubeadm或任何其他流行工具配置集群后，ClusterRole cluster-admin集群中已经存在。我们可以使用它并ClusterRoleBinding为我们的创建一个ServiceAccount。如果它不存在，那么您需要先创建此角色并手动授予所需的权限。

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:name: admin-user
roleRef:apiGroup: rbac.authorization.k8s.iokind: ClusterRolename: cluster-admin
subjects:
- kind: ServiceAccountname: admin-usernamespace: kubernetes-dashboard

获取 ServiceAccount 的 Bearer Token

kubernetes/dashboard/blob/master/docs/user/access-control/creating-sample-user.md#getting-a-bearer-token-for-serviceaccount" target="_blank" rel="noopener nofollow noopener noreferrer">

现在我们需要找到可以用来登录的令牌。执行以下命令：

kubectl -n kubernetes-dashboard create token admin-user

它应该打印类似这样的内容：

eyJhbGciOiJSUzI1NiIsImtpZCI6IiJ9.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.Z2JrQlitASVwWbc-s6deLRFVk5DWD3P_vjUFXsqVSY10pbjFLG4njoZwh8p3tLxnX_VBsr7_6bwxhWSYChp9hwxznemD5x5HLtjb16kI9Z7yFWLtohzkTwuFbqmQaMoget_nYcQBUC5fDmBHRfFvNKePh_vSSb2h_aYXa8GV5AcfPQpY7r461itme1EXHQJqv-SN-zUnguDguCTjD80pFZ_CmnSE1z9QdMHPB8hoB4V68gtswR1VLa6mSYdgPwCHauuOobojALSaMc3RH7MmFUumAgguhqAkX3Omqd3rJbYOMRuMjhANqd08piDC3aIabINX6gP5-Tuuw2svnV6NYQ

查看Kubernetes 文档有关 ServiceAccount 的 API 令牌的更多信息。

获取 ServiceAccount 的长期 Bearer Token

kubernetes/dashboard/blob/master/docs/user/access-control/creating-sample-user.md#getting-a-long-lived-bearer-token-for-serviceaccount" target="_blank" rel="noopener nofollow noopener noreferrer">

我们还可以创建一个与服务账户绑定的带有secret的token，该token会保存在Secret中：

apiVersion: v1
kind: Secret
metadata:name: admin-usernamespace: kubernetes-dashboardannotations:kubernetes.io/service-account.name: "admin-user"   
type: kubernetes.io/service-account-token

Secret创建完成后，我们可以执行以下命令来获取Secret中保存的Token：

kubectl get secret admin-user -n kubernetes-dashboard -o jsonpath={".data.token"} | base64 -d

查看Kubernetes 文档有关 ServiceAccount 的长效 API 令牌的更多信息。

访问仪表板

kubernetes/dashboard/blob/master/docs/user/access-control/creating-sample-user.md#accessing-dashboard" target="_blank" rel="noopener nofollow noopener noreferrer">

现在复制令牌并将其粘贴到Enter token登录屏幕上的字段中。

kubernetes/dashboard/blob/master/docs/images/signin.png" target="_blank" rel="noopener nofollow noopener noreferrer">

kubernetes/dashboard/raw/master/docs/images/signin.png" alt="登入" style="outline: none;" />

单击Sign in按钮即可。您现在以管理员身份登录。

kubernetes/dashboard/blob/master/docs/images/overview.png" target="_blank" rel="noopener nofollow noopener noreferrer">

kubernetes/dashboard/raw/master/docs/images/overview.png" alt="概述" style="outline: none;" />

清理和后续步骤

kubernetes/dashboard/blob/master/docs/user/access-control/creating-sample-user.md#clean-up-and-next-steps" target="_blank" rel="noopener nofollow noopener noreferrer">

删除管理员ServiceAccount和ClusterRoleBinding。

kubectl -n kubernetes-dashboard delete serviceaccount admin-user
kubectl -n kubernetes-dashboard delete clusterrolebinding admin-user

为了了解有关如何在 Kubernetes 中授予/拒绝权限的更多信息，请阅读官方验证&授权文档。

https://github.com/kubernetes/dashboard/blob/master/docs/user/access-control/creating-sample-user.md