kubernetes-dashboard安装介绍（备忘）

可能的坑

安装kubernetes-dashboard主要遇到2个问题：

1. 需要先安装heapster
2. 账号验证问题
3. 导出本机端口

安装 heapster

1. 下载 heapster-controller.yaml

   curl -o heapster-controller.yaml https://github.com/kubernetes/heapster/blob/master/deploy/kube-config/standalone/heapster-controller.yaml

2. 将 heapster-controller.yaml 修改成如下：

   apiVersion: v1
   kind: ServiceAccount
   metadata:
     labels:
       k8s-app: heapster
     name: heapster
     namespace: kube-system
   
   ---
   apiVersion: rbac.authorization.k8s.io/v1beta1
   kind: ClusterRoleBinding
   metadata:
     name: heapster
     labels:
       k8s-app: heapster
   roleRef:
     apiGroup: rbac.authorization.k8s.io
     kind: ClusterRole
     name: cluster-admin
   subjects:
     - kind: ServiceAccount
       name: heapster
       namespace: kube-system
   
   ---
   apiVersion: extensions/v1beta1
   kind: Deployment
   metadata:
     name: heapster
     namespace: kube-system
   spec:
     replicas: 1
     template:
       metadata:
         labels:
           task: monitoring
           k8s-app: heapster
       spec:
         serviceAccountName: heapster
         containers:
         - name: heapster
           image: k8s.gcr.io/heapster-amd64:v1.5.3
           imagePullPolicy: IfNotPresent
           command:
           - /heapster
   
           - --source=kubernetes:https://kubernetes.default
   ---
   
   apiVersion: v1
   kind: Service
   metadata:
     labels:
       task: monitoring
       # For use as a Cluster add-on (https://github.com/kubernetes/kubernetes/tree/master/cluster/addons)
       # If you are NOT using this as an addon, you should comment out this line.
       kubernetes.io/cluster-service: 'true'
       kubernetes.io/name: Heapster
     name: heapster
     namespace: kube-system
   spec:
     ports:
     - port: 80
       targetPort: 8082
     selector:
       k8s-app: heapster

   主要修改 ServiceAccount 内容

3. 开启 heapster

   kubectl create -f heapster-controller.yaml
   kubectl get all -l k8s-app=heapster --all-namespaces

安装 dashboard

1. 下载 kubernetes-dashboard.yaml

   curl -o kubernetes-dashboard.yaml https://raw.githubusercontent.com/kubernetes/dashboard/master/src/deploy/recommended/kubernetes-dashboard.yaml

2. 将 kubernetes-dashboard.yaml 修改成如下：

    # Copyright 2017 The Kubernetes Authors.
    #
    # Licensed under the Apache License, Version 2.0 (the "License");
    # you may not use this file except in compliance with the License.
    # You may obtain a copy of the License at
    #
    #     http://www.apache.org/licenses/LICENSE-2.0
    #
    # Unless required by applicable law or agreed to in writing, software
    # distributed under the License is distributed on an "AS IS" BASIS,
    # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    # See the License for the specific language governing permissions and
    # limitations under the License.
   
    # Configuration to deploy release version of the Dashboard UI compatible with
    # Kubernetes 1.8.
    #
    # Example usage: kubectl create -f 
   
    # ------------------- Dashboard Service Account ------------------- #
   apiVersion: v1
   kind: ServiceAccount
   metadata:
     labels:
       k8s-app: kubernetes-dashboard
     name: kubernetes-dashboard
     namespace: kube-system
   
   ---
    # ------------------- Dashboard Role & Role Binding ------------------- #
   apiVersion: rbac.authorization.k8s.io/v1beta1
   kind: ClusterRoleBinding
   metadata:
     name: kubernetes-dashboard
     labels:
       k8s-app: kubernetes-dashboard
   roleRef:
     apiGroup: rbac.authorization.k8s.io
     kind: ClusterRole
     name: cluster-admin
   subjects:
     - kind: ServiceAccount
       name: kubernetes-dashboard
       namespace: kube-system
   
   ---
    # ------------------- Dashboard Deployment ------------------- #
   kind: Deployment
   apiVersion: apps/v1beta2
   metadata:
     labels:
       k8s-app: kubernetes-dashboard
     name: kubernetes-dashboard
     namespace: kube-system
   spec:
     replicas: 1
     revisionHistoryLimit: 10
     selector:
       matchLabels:
         k8s-app: kubernetes-dashboard
     template:
       metadata:
         labels:
           k8s-app: kubernetes-dashboard
       spec:
         containers:
         - name: kubernetes-dashboard
           image: k8s.gcr.io/kubernetes-dashboard-amd64:v1.8.3
           ports:
           - containerPort: 9090
             protocol: TCP
           args:
             # - --auto-generate-certificates
             # Uncomment the following line to manually specify Kubernetes API server Host
             # If not specified, Dashboard will attempt to auto discover the API server and connect
             # to it. Uncomment only if the default does not work.
             # - --apiserver-host=http://my-address:port
             - --heapster-host=http://heapster
           livenessProbe:
             httpGet:
               path: /
               port: 9090
             initialDelaySeconds: 30
             timeoutSeconds: 30
         serviceAccountName: kubernetes-dashboard
         # Comment the following tolerations if Dashboard must not be deployed on master
         tolerations:
         - key: node-role.kubernetes.io/master
           effect: NoSchedule
   
   ---
    # ------------------- Dashboard Service ------------------- #
   kind: Service
   apiVersion: v1
   metadata:
     labels:
       k8s-app: kubernetes-dashboard
     name: kubernetes-dashboard
     namespace: kube-system
   spec:
     type: NodePort
     ports:
       - port: 443
         targetPort: 9090
         nodePort: 30002
     selector:
       k8s-app: kubernetes-dashboard

   主要修改了 ServiceAccount 信息、导出NodePort、修改8443为9090

3. 开启 dashboard

   kubectl create -f kubernetes-dashboard.yaml

4. 验证

   curl http://localhost:30002

   或者IE中访问： htttp://your-ip:30002

5. 结果图：
   

以上