部署Dashboard（Web UI）

* dashboard-deployment.yaml // 部署Pod，提供Web服務 * dashboard-rbac.yaml // 授權訪問apiserver獲取信息 * dashboard-service.yaml // 發布服務，提供對外訪問 ? 創建一個目錄 [root@k8s-master ~]# mkdir webui [root@k8s-master ~]# cd webui/ [root@k8s-master webui]# cat dashboard-deployment.yaml apiVersion: apps/v1beta2 kind: Deployment metadata:name: kubernetes-dashboardnamespace: kube-systemlabels:k8s-app: kubernetes-dashboardkubernetes.io/cluster-service: "true"addonmanager.kubernetes.io/mode: Reconcile spec:selector:matchLabels:k8s-app: kubernetes-dashboardtemplate:metadata:labels:k8s-app: kubernetes-dashboardannotations:scheduler.alpha.kubernetes.io/critical-pod: ''spec:serviceAccountName: kubernetes-dashboardcontainers:- name: kubernetes-dashboardimage: registry.cn-hangzhou.aliyuncs.com/kube_containers/kubernetes-dashboard-amd64:v1.8.1 resources:limits:cpu: 100mmemory: 300Mirequests:cpu: 100mmemory: 100Miports:- containerPort: 9090protocol: TCPlivenessProbe:httpGet:scheme: HTTPpath: /port: 9090initialDelaySeconds: 30timeoutSeconds: 30tolerations:- key: "CriticalAddonsOnly"operator: "Exists"[root@k8s-master webui]# cat dashboard-rbac.yaml apiVersion: v1 kind: ServiceAccount metadata:labels:k8s-app: kubernetes-dashboardaddonmanager.kubernetes.io/mode: Reconcilename: kubernetes-dashboardnamespace: kube-system --- ? kind: ClusterRoleBinding apiVersion: rbac.authorization.k8s.io/v1beta1 metadata:name: kubernetes-dashboard-minimalnamespace: kube-systemlabels:k8s-app: kubernetes-dashboardaddonmanager.kubernetes.io/mode: Reconcile roleRef:apiGroup: rbac.authorization.k8s.iokind: ClusterRolename: cluster-admin subjects:- kind: ServiceAccountname: kubernetes-dashboardnamespace: kube-system ? [root@k8s-master webui]# cat dashboard-service.yaml apiVersion: v1 kind: Service metadata:name: kubernetes-dashboardnamespace: kube-systemlabels:k8s-app: kubernetes-dashboardkubernetes.io/cluster-service: "true"addonmanager.kubernetes.io/mode: Reconcile spec:type: NodePortselector:k8s-app: kubernetes-dashboardports:- port: 80targetPort: 9090[root@k8s-master webui]# /opt/kubernetes/bin/kubectl create -f dashboard-rbac.yaml [root@k8s-master webui]# /opt/kubernetes/bin/kubectl create -f dashboard-deployment.yaml [root@k8s-master webui]# /opt/kubernetes/bin/kubectl create -f dashboard-service.yaml 等待數分鐘，查看資源狀態： ? 查看名稱空間： [root@k8s-master webui]# /opt/kubernetes/bin/kubectl get all -n kube-system NAME READY STATUS RESTARTS AGE pod/kubernetes-dashboard-d9545b947-442ft 1/1 Running 0 21m ? NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE service/kubernetes-dashboard NodePort 10.0.0.143 <none> 80:47520/TCP 21m ? NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE deployment.apps/kubernetes-dashboard 1 1 1 1 21m ? NAME DESIRED CURRENT READY AGE replicaset.apps/kubernetes-dashboard-d9545b947 1 1 1 21m 查看訪問端口： ? 查看指定命名空間的服務 [root@k8s-master webui]# /opt/kubernetes/bin/kubectl get svc -n kube-system NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE kubernetes-dashboard NodePort 10.0.0.143 <none> 80:47520/TCP 22m

測試

========================================================== 運行一個測試示例--在master節點先安裝docker服務 創建一個Nginx Web，判斷集群是否正常工 # /opt/kubernetes/bin/kubectl run nginx --image=daocloud.io/nginx --replicas=3 # /opt/kubernetes/bin/kubectl expose deployment nginx --port=88 --target-port=80 --type=NodePort ? 在master上面查看： 查看Pod，Service： # /opt/kubernetes/bin/kubectl get pods #需要等一會 NAME READY STATUS RESTARTS AGE nginx-64f497f8fd-fjgt2 1/1 Running 3 28d nginx-64f497f8fd-gmstq 1/1 Running 3 28d nginx-64f497f8fd-q6wk9 1/1 Running 3 28d ? 查看pod詳細信息： # /opt/kubernetes/bin/kubectl describe pod nginx-64f497f8fd-fjgt2 ? # /opt/kubernetes/bin/kubectl get svc NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE kubernetes ClusterIP 10.0.0.1 <none> 443/TCP 28d nginx NodePort 10.0.0.175 <none> 88:38696/TCP 28d ? 訪問nodeip加端口 打開瀏覽器輸入：http://192.168.246.164:38696? ? 恭喜你，集群部署成功！ ============================

總結

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