Kubernetes1.8.4中如何安装Dashboard

小编给大家分享一下Kubernetes 1.8.4 中如何安装Dashboard,希望大家阅读完这篇文章之后都有所收获,下面让我们一起去探讨吧!

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Dashboard

      Dashboard 是 Kubernetes 社区官方开发的仪表板,有了仪表板后管理者就能够透过 Web-based 方式来管理 Kubernetes 集群,除了提升管理方便,也让资源可视化,让人更直觉看见系统信息的呈现结果。

  • 建立kubernetes-dashboard-certs,来提供给 Dashboard TLS 使用

    mkdir -p /etc/kubernetes/addons/certs && cd /etc/kubernetes/addons
    openssl genrsa -des3 -passout pass:x -out certs/dashboard.pass.key 2048
    openssl rsa -passin pass:x -in certs/dashboard.pass.key -out certs/dashboard.key
    openssl req -new -key certs/dashboard.key -out certs/dashboard.csr -subj '/CN=kube-dashboard'
    openssl x509 -req -sha256 -days 365 -in certs/dashboard.csr -signkey certs/dashboard.key -out certs/dashboard.crt
    rm certs/dashboard.pass.key
    kubectl create secret generic kubernetes-dashboard-certs\
        --from-file=certs -n kube-system

     

  • 在master通过 kubectl 来建立 kubernetes dashboard 即可

    cat <  kube-dashboard.yml
    # 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 Secret ------------------- #
    
    apiVersion: v1
    kind: Secret
    metadata:
      labels:
        k8s-app: kubernetes-dashboard
      name: kubernetes-dashboard-certs
      namespace: kube-system
    type: Opaque
    
    ---
    # ------------------- Dashboard Service Account ------------------- #
    
    apiVersion: v1
    kind: ServiceAccount
    metadata:
      labels:
        k8s-app: kubernetes-dashboard
      name: kubernetes-dashboard
      namespace: kube-system
    
    ---
    # ------------------- Dashboard Role & Role Binding ------------------- #
    
        
    kind: Role
    apiVersion: rbac.authorization.k8s.io/v1
    metadata:
      name: kubernetes-dashboard-minimal
      namespace: kube-system
    rules:
      # Allow Dashboard to create 'kubernetes-dashboard-key-holder' secret.
    - apiGroups: [""]
      resources: ["secrets"]
      verbs: ["create"]
      # Allow Dashboard to get, update and delete Dashboard exclusive secrets.
    - apiGroups: [""]
      resources: ["secrets"]
      resourceNames: ["kubernetes-dashboard-key-holder", "kubernetes-dashboard-certs"]
      verbs: ["get", "update", "delete"]
      # Allow Dashboard to get and update 'kubernetes-dashboard-settings' config map.
    - apiGroups: [""]
      resources: ["configmaps"]
      resourceNames: ["kubernetes-dashboard-settings"]
      verbs: ["get", "update"]
      # Allow Dashboard to get metrics from heapster.
    - apiGroups: [""]
      resources: ["services"]
      resourceNames: ["heapster"]
      verbs: ["proxy"]
    
    ---
    apiVersion: rbac.authorization.k8s.io/v1
    kind: RoleBinding
    metadata:
      name: kubernetes-dashboard-minimal
      namespace: kube-system
    roleRef:
      apiGroup: rbac.authorization.k8s.io
      kind: Role
      name: kubernetes-dashboard-minimal
    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: registry.cn-hangzhou.aliyuncs.com/google_containers/kubernetes-dashboard-amd64:v1.8.0
            imagePullPolicy: IfNotPresent
            ports:
            - containerPort: 8443
              protocol: TCP
            args:
              - --tls-key-file=dashboard.key
              - --tls-cert-file=dashboard.crt
              #- --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
            volumeMounts:
            - name: kubernetes-dashboard-certs
              mountPath: /certs
              # Create on-disk volume to store exec logs
            - mountPath: /tmp
              name: tmp-volume
            livenessProbe:
              httpGet:
                scheme: HTTPS
                path: /
                port: 8443
              initialDelaySeconds: 30
              timeoutSeconds: 30
          volumes:
          - name: kubernetes-dashboard-certs
            secret:
              secretName: kubernetes-dashboard-certs
          - name: tmp-volume
            emptyDir: {}
          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:
      ports:
        - port: 443
          targetPort: 8443
      selector:
        k8s-app: kubernetes-dashboard
    EOF

    kubectl apply -f kube-dashboard.yml

    cat <kube-dashboard-admin.yml
    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  
    EOF

    kubectl apply -f kube-dashboard-admin.yml

    kubectl -n kube-system get po,svc -l k8s-app=kubernetes-dashboard

    完成后,就可以透过浏览器访问 Dashboard

    https://10.0.0.162:6443/api/v1/namespaces/kube-system/services/https:kubernetes-dashboard:/proxy/

看完了这篇文章,相信你对“Kubernetes 1.8.4 中如何安装Dashboard”有了一定的了解,如果想了解更多相关知识,欢迎关注创新互联行业资讯频道,感谢各位的阅读!


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