k8s-部署WEB-UI(dashboard)

[root@k8s-master dashboard]# pwd
/usr/local/src/kubernetes/cluster/addons/dashboard

[root@k8s-master dashboard]# mkdir /usr/local/src/dashboard
[root@k8s-master dashboard]# cp dashboard-rbac.yaml dashboard-service.yaml dashboard-controller.yaml /usr/local/src/dashboard
[root@k8s-master dashboard]# cd /usr/local/src/dashboard/
[root@k8s-master dashboard]# ll
total 12
-rw-r--r-- 1 root root 1821 May 30 01:01 dashboard-controller.yaml
-rw-r--r-- 1 root root 1353 May 30 01:01 dashboard-rbac.yaml
-rw-r--r-- 1 root root 322 May 30 01:01 dashboard-service.yaml

[root@k8s-master dashboard]# pwd
/usr/local/src/dashboard
[root@k8s-master dashboard]# ll
total 12
-rw-r--r-- 1 root root 1147 May 30 02:09 dashboard-controller.yaml
-rw-r--r-- 1 root root  606 May 30 01:54 dashboard-rbac.yaml
-rw-r--r-- 1 root root  338 May 30 02:10 dashboard-service.yaml
[root@k8s-master dashboard]# kubectl create -f dashboard-rbac.yaml 
[root@k8s-master dashboard]# kubectl create -f dashboard-controller.yaml 
deployment "kubernetes-dashboard" created
[root@k8s-master dashboard]# kubectl create -f dashboard-service.yaml 
service "kubernetes-dashboard" created
###查看
[root@k8s-master ~]# kubectl get services kubernetes-dashboard -n kube-system
NAME                   TYPE       CLUSTER-IP     EXTERNAL-IP   PORT(S)        AGE
kubernetes-dashboard   NodePort   10.10.10.199   <none>        80:45439/TCP   2m

[root@k8s-master dashboard]# kubectl get pods -n kube-system    #####status not running
NAME                                    READY     STATUS             RESTARTS   AGE
kubernetes-dashboard-765c8bfdff-ddwvw   0/1       ImagePullBackOff   0          22m

[root@k8s-master dashboard]# kubectl describe pod kubernetes-dashboard-765c8bfdff-ddwvw -n kube-system  ####查看原因
发现里面的一个image地址写错了，解决办法如下：
[root@k8s-master dashboard]# kubectl delete -f dashboard-controller.yaml 
deployment "kubernetes-dashboard" deleted
[root@k8s-master dashboard]# kubectl create -f dashboard-controller.yaml 
deployment "kubernetes-dashboard" created
[root@k8s-master dashboard]# kubectl get pods
NAME                     READY     STATUS    RESTARTS   AGE
nginx-64f497f8fd-jnhgm   1/1       Running   0          20h
nginx-64f497f8fd-n5pst   1/1       Running   0          20h
nginx-64f497f8fd-rzldm   1/1       Running   0          20h
[root@k8s-master dashboard]# kubectl get pods -n kube-system
NAME                                    READY     STATUS    RESTARTS   AGE
kubernetes-dashboard-769c9999cb-wwxsn   1/1       Running   0          21s

[root@k8s-master dashboard]# kubectl get all -n kube-system
NAME                          DESIRED   CURRENT   UP-TO-DATE   AVAILABLE   AGE
deploy/kubernetes-dashboard   1         1         1            1           18m

NAME                                 DESIRED   CURRENT   READY     AGE
rs/kubernetes-dashboard-769c9999cb   1         1         1         18m

NAME                                       READY     STATUS    RESTARTS   AGE
po/kubernetes-dashboard-769c9999cb-wwxsn   1/1       Running   0          18m

NAME                       TYPE       CLUSTER-IP     EXTERNAL-IP   PORT(S)        AGE
svc/kubernetes-dashboard   NodePort   10.10.10.199   <none>        80:45439/TCP   42m

[root@k8s-master dashboard]# kubectl get svc -n kube-system
NAME                   TYPE       CLUSTER-IP     EXTERNAL-IP   PORT(S)        AGE
kubernetes-dashboard   NodePort   10.10.10.199   <none>        80:45439/TCP   46m

[root@k8s-master dashboard]# cat dashboard-controller.yaml 
apiVersion: apps/v1beta2
kind: Deployment
metadata:
  name: kubernetes-dashboard
  namespace: kube-system
  labels:
    k8s-app: kubernetes-dashboard
    kubernetes.io/cluster-service: "true"
    addonmanager.kubernetes.io/mode: Reconcile
spec:
  selector:
    matchLabels:
      k8s-app: kubernetes-dashboard
  template:
    metadata:
      labels:
        k8s-app: kubernetes-dashboard
      annotations:
        scheduler.alpha.kubernetes.io/critical-pod: ''
    spec:
      serviceAccountName: kubernetes-dashboard
      containers:
      - name: kubernetes-dashboard
        image: registry.cn-hangzhou.aliyuncs.com/google_containers/kubernetes-dashboard-amd64:v1.7.1
        resources:
          limits:
            cpu: 100m
            memory: 300Mi
          requests:
            cpu: 100m
            memory: 100Mi
        ports:
        - containerPort: 9090
          protocol: TCP
        livenessProbe:
          httpGet:
            scheme: HTTP
            path: /
            port: 9090
          initialDelaySeconds: 30
          timeoutSeconds: 30
      tolerations:
      - key: "CriticalAddonsOnly"
        operator: "Exists"

[root@k8s-master dashboard]# cat dashboard-rbac.yaml 
apiVersion: v1
kind: ServiceAccount
metadata:
  labels:
    k8s-app: kubernetes-dashboard
    addonmanager.kubernetes.io/mode: Reconcile
  name: kubernetes-dashboard
  namespace: kube-system
---

kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata:
  name: kubernetes-dashboard-minimal
  namespace: kube-system
  labels:
    k8s-app: kubernetes-dashboard
    addonmanager.kubernetes.io/mode: Reconcile
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: cluster-admin
subjects:
- kind: ServiceAccount
  name: kubernetes-dashboard
  namespace: kube-system

[root@k8s-master dashboard]# cat dashboard-service.yaml 
apiVersion: v1
kind: Service
metadata:
  name: kubernetes-dashboard
  namespace: kube-system
  labels:
    k8s-app: kubernetes-dashboard
    kubernetes.io/cluster-service: "true"
    addonmanager.kubernetes.io/mode: Reconcile
spec:
  type: NodePort
  selector:
    k8s-app: kubernetes-dashboard
  ports:
  - port: 80
    targetPort: 9090

#####可以在浏览器输入其中一个节点和端口访问