部署K8S dashboard

dashboard 方便用頁面管理K8S 集羣

1. 準備鏡像

docker pull k8scn/kubernetes-dashboard-amd64:v1.8.3

　　

2. 配置rbac  deployment service ingress 的文件

然後在應用這些資源配置清單

[root@hdss7-200 dashboard]# cat rbac.yaml 
apiVersion: v1
kind: ServiceAccount
metadata:
  labels:
    k8s-app: kubernetes-dashboard
    addonmanager.kubernetes.io/mode: Reconcile
  name: kubernetes-dashboard-admin
  namespace: kube-system
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: kubernetes-dashboard-admin
  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-admin
  namespace: kube-system
[root@hdss7-200 dashboard]# cat dp.yaml 
apiVersion: apps/v1
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:
      priorityClassName: system-cluster-critical
      containers:
      - name: kubernetes-dashboard
        image: harbor.od.com/public/kubernetes-dashboard:v1.10.1
        resources:
          limits:
            cpu: 100m
            memory: 300Mi
          requests:
            cpu: 50m
            memory: 100Mi
        ports:
        - containerPort: 8443
          protocol: TCP
        args:
          # PLATFORM-SPECIFIC ARGS HERE
          - --auto-generate-certificates
        volumeMounts:
        - name: tmp-volume
          mountPath: /tmp
        #健康探測探針  
        livenessProbe:
          httpGet:
            scheme: HTTPS
            path: /
            port: 8443
          initialDelaySeconds: 30
          timeoutSeconds: 30
      volumes:
      - name: tmp-volume
        emptyDir: {}
      serviceAccountName: kubernetes-dashboard-admin
      tolerations:
      - key: "CriticalAddonsOnly"
        operator: "Exists"
[root@hdss7-200 dashboard]# cat svc.yaml 
apiVersion: v1
kind: Service
metadata:
  name: kubernetes-dashboardtt
  namespace: kube-system
  labels:
    k8s-app: kubernetes-dashboard66
    kubernetes.io/cluster-service: "true"
    addonmanager.kubernetes.io/mode: Reconcile
spec:
  selector:
    k8s-app: kubernetes-dashboard
  ports:
  - port: 443
    targetPort: 8443
[root@hdss7-200 dashboard]# cat ingress.yaml 
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: kubernetes-dashboard
  namespace: kube-system
  annotations:
    kubernetes.io/ingress.class: traefik
spec:
  rules:
  - host: dashboard.od.com
    http:
      paths:
      - backend:
          serviceName: kubernetes-dashboardtt
          servicePort: 443　　

3. 配置nginx https 代理：

兩臺nginx 都要加！

server {
    listen       80;
    server_name  dashboard.od.com;

    rewrite ^(.*)$ https://${server_name}$1 permanent;
}
server {
    listen       443 ssl;
    server_name  dashboard.od.com;

    ssl_certificate "certs/dashboard.od.com.crt";
    ssl_certificate_key "certs/dashboard.od.com.key";
    ssl_session_cache shared:SSL:1m;
    ssl_session_timeout  10m;
    ssl_ciphers HIGH:!aNULL:!MD5;
    ssl_prefer_server_ciphers on;

    location / {
        proxy_pass http://default_backend_traefik;
	      proxy_set_header Host       $http_host;
        proxy_set_header x-forwarded-for $proxy_add_x_forwarded_for;
    }
}

　在dns server 上 配置好A 記錄  

dashboard	60 IN A 10.4.7.10

　

4. 在CA 服務器上頒發dashboard證書

在 CA server 上：
certs]# (umask 077; openssl genrsa -out dashboard.od.com.key 2048)  #生成ca 證書
certs]# openssl req -new -key dashboard.od.com.key -out dashboard.od.com.csr -subj  "/CN=dashboard.od.com/C=CN/ST=BJ/L=Beijing/O=OldboyEdu/OU=ops"  #生成證書請求 csr
certs]# openssl x509 -req -in dashboard.od.com.csr -CA ca.pem -CAkey ca-key.pem -CAcreateserial -out dashboard.od.com.crt -days 3650

然後把生成的 dashbord 證書copy 到11 和 12 上去。

　　

5. 訪問dashboard 

kubectl get secret -n kube-system
NAME                                     TYPE                                  DATA   AGE
coredns-token-cks85                      kubernetes.io/service-account-token   3      57d
dashboard-cert                           Opaque                                2      20d
default-token-7bzxd                      kubernetes.io/service-account-token   3      64d
kube-state-metrics-token-zrvdz           kubernetes.io/service-account-token   3      43d
kubernetes-dashboard-admin-token-mvk6c   kubernetes.io/service-account-token   3      12d
kubernetes-dashboard-key-holder          Opaque                                2      7d17h
kubernetes-dashboard-token-n9q9l         kubernetes.io/service-account-token   3      12d
traefik-ingress-controller-token-rpjj7   kubernetes.io/service-account-token   3      56d
[root@hdss7-21 opt]# kubectl describe secret kubernetes-dashboard-admin-token-mvk6c  -n kube-system
Name:         kubernetes-dashboard-admin-token-mvk6c
Namespace:    kube-system
Labels:       <none>
Annotations:  kubernetes.io/service-account.name: kubernetes-dashboard-admin
              kubernetes.io/service-account.uid: a169d642-80fb-4fdd-a877-df95b370a4f5

Type:  kubernetes.io/service-account-token

Data
====
namespace:  11 bytes
token:      eyJhbGciOiJSUzI1NiIsImtpZCI6IiJ9.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.M3YngzqLDu0xlMTNwbL12VnYuloZchsKOPCNDH5V3Tn5M7MNNrriIf8Lc6TyqHfD6gJj30WoLp9vpdlL3tU_XPSQt5HnT4892cI3YfT1nh_znNlaE8lrfLXebMbDAe50s7zLoXWxfHMEQYURO3cEl101yhP5mE-S69PTTQDKwUGVMFPMyCoKH1ejZDDtdH6we8pvuMbfi_iTv53KrVo0OKlQ3NHMgdJFZ04ECVFJ3wWczfOAqCXj8R5AlYTqPXJhNVQmOvopCYH4kEPg5QDhOER71YffMEoqdrR-O5DAUq2npCl9aa7UrFxEUu2ji745y9qAm2fftL68YrhzsA_l0Q
ca.crt:     1346 bytes

把token 信息複製到頁面的token 就可以了