今天的筆記我們將介紹如何開啟 Kubernetes Dashboard.

使用 Kubernetes Dashboard

(部分資訊將會遮罩)

1. 首先我們要先進入 Azure Portal 中, 找到 AKS 叢集, 選取 View Kubernetes dashboard
   
2. 接下來會有幾個命令, 引導我們開啟儀表板
   
3. 我們依序執行以下的命令
   (1) 執行命令 az aks get-credentials --resource-group 15maksrg --name 15makscls 取得叢集的 Credential

   PS C:\k8s\dotnet-docker\samples\aspnetapp> az aks get-credentials --resource-group 1
   5maksrg --name 15makscls
   Merged "15makscls" as current context in C:\Users\?????\.kube\config
   

   (2) 執行命令 az aks browse --resource-group 15maksrg --name 15makscls 開啟dashboard 通道, 預設會連到本機的 tcp 8001 port

   PS C:\k8s\dotnet-docker\samples\aspnetapp> az aks browse --resource-group 15maksrg -
   -name 15makscls
   Merged "15makscls" as current context in C:\Users\?????\AppData\Local\Temp\tmpjpyckz2r
   Proxy running on http://127.0.0.1:8001/
   Press CTRL+C to close the tunnel...
   Forwarding from 127.0.0.1:8001 -> 9090
   Forwarding from [::1]:8001 -> 9090
   Handling connection for 8001
   

4. 我們可能會遇到無法存取的錯誤如下:
   
5. 可以使用以下的設定方式解決沒有權限的問題:
   (1) 執行命令 kubectl create clusterrolebinding kubernetes-dashboard -n kube-system --clusterrole=cluster-admin --serviceaccount=kube-system:kubernetes-dashboard
   其中使用 'ClusterRoleBinding' 指派 dashboard-admin 角色給叢集服務帳戶

   PS C:\k8s\dotnet-docker\samples\aspnetapp> kubectl create clusterrolebinding kuberne
   tes-dashboard -n kube-system --clusterrole=cluster-admin --serviceaccount=kube-syste
   m:kubernetes-dashboard
   clusterrolebinding.rbac.authorization.k8s.io "kubernetes-dashboard" created
   

   (2) 再次執行命令 az aks browse --resource-group 15maksrg --name 15makscls 開啟 dashboard 通道

   PS C:\k8s\dotnet-docker\samples\aspnetapp> az aks browse --resource-group 15maksrg -
   -name 15makscls
   Merged "15makscls" as current context in C:\Users\?????\AppData\Local\Temp\tmp3coydt09
   Proxy running on http://127.0.0.1:8001/
   Press CTRL+C to close the tunnel...
   Forwarding from 127.0.0.1:8001 -> 9090
   Forwarding from [::1]:8001 -> 9090
   Handling connection for 8001
   Handling connection for 8001
   Handling connection for 8001
   

6. Kubernetes Dashboard 便可以使用了
   

參考資料:

• https://pascalnaber.wordpress.com/2018/06/17/access-dashboard-on-aks-with-rbac-enabled/