K8S---多節點部署---UI界面(6)

K8S—多節點部署—UI界面

搭建k8s的Dashboard

1.創建目錄，上次yaml文件

[root@localhost k8s]# mkdir dashboard

[root@localhost k8s]# cd dashboard/
[root@localhost dashboard]# ls
dashboard-configmap.yaml   dashboard-rbac.yaml    dashboard-service.yaml
dashboard-controller.yaml  dashboard-secret.yaml  k8s-admin.yaml
您在 /var/spool/mail/root 中有郵件

2.創建所需文件，按一下順序

//配置授權訪問api，角色控制，訪問控制

[root@localhost dashboard]#  kubectl create -f dashboard-rbac.yaml
role.rbac.authorization.k8s.io/kubernetes-dashboard-minimal created
rolebinding.rbac.authorization.k8s.io/kubernetes-dashboard-minimal created

//配置進行加密，安全設定

[root@localhost dashboard]# kubectl create -f dashboard-secret.yaml
secret/kubernetes-dashboard-certs created
secret/kubernetes-dashboard-key-holder created

//配置網站應用

[root@localhost dashboard]# kubectl create -f dashboard-configmap.yaml
configmap/kubernetes-dashboard-settings created

//配置控制器

[root@localhost dashboard]# kubectl create -f dashboard-controller.yaml
serviceaccount/kubernetes-dashboard created
deployment.apps/kubernetes-dashboard created

//配置發佈出去服務，給別人進行訪問

[root@localhost dashboard]# kubectl create -f dashboard-service.yaml
service/kubernetes-dashboard created

//完成後查看創建在指定的kube-system命名空間下

[root@localhost dashboard]# kubectl get pods -n kube-system
NAME                                    READY   STATUS              RESTARTS   AGE
kubernetes-dashboard-65f974f565-9svdg   0/1     ContainerCreating   0          13s

//查看如何訪問

[root@localhost dashboard]# kubectl get pods,svc -n kube-system
NAME                                        READY   STATUS    RESTARTS   AGE
pod/kubernetes-dashboard-65f974f565-9svdg   1/1     Running   0          2m18s

NAME                           TYPE       CLUSTER-IP   EXTERNAL-IP   PORT(S)         AGE
service/kubernetes-dashboard   NodePort   10.0.0.247   <none>        443:30001/TCP   2m12s

3.訪問nodeIP就可以訪問

出現如下錯誤：

4.產生上述錯誤是因爲沒有令牌，我們需要自行生成令牌

//製作證書腳本

[root@localhost dashboard]# vim dashboard-cert.sh

cat > dashboard-csr.json <<EOF
{
   "CN": "Dashboard",
   "hosts": [],
   "key": {
       "algo": "rsa",
       "size": 2048
   },
   "names": [
       {
           "C": "CN",
           "L": "BeiJing",
           "ST": "BeiJing"
       }
   ]
}
EOF

K8S_CA=$1
cfssl gencert -ca=$K8S_CA/ca.pem -ca-key=$K8S_CA/ca-key.pem -config=$K8S_CA/ca-config.json -profile=kubernetes dashboard-csr.json | cfssljson -bare dashboard
kubectl delete secret kubernetes-dashboard-certs -n kube-system
kubectl create secret generic kubernetes-dashboard-certs --from-file=./ -n kube-system

//執行腳本

[root@localhost dashboard]# bash dashboard-cert.sh /root/k8s/k8s-cert/

//在控制器yaml文件中添加證書（47行處，不可以tab，用空格）

[root@localhost dashboard]# vim dashboard-controller.yaml

​     \- --auto-generate-certificates

​     \- --tls-key-file=dashboard-key.pem

​     \- --tls-cert-file=dashboard.pem

//重新部署

[root@localhost dashboard]# kubectl apply -f dashboard-controller.yaml

5.生成登陸token

//生成令牌

[root@localhost dashboard]# kubectl create -f k8s-admin.yaml
serviceaccount/dashboard-admin created
clusterrolebinding.rbac.authorization.k8s.io/dashboard-admin created

//保存令牌

[root@localhost dashboard]# kubectl get secret -n kube-system
NAME                               TYPE                                  DATA   AGE
dashboard-admin-token-7bm26        kubernetes.io/service-account-token   3      57s
default-token-8fmt5                kubernetes.io/service-account-token   3      4d17h
kubernetes-dashboard-certs         Opaque                                11     7m28s
kubernetes-dashboard-key-holder    Opaque                                2      16m
kubernetes-dashboard-token-cpcmn   kubernetes.io/service-account-token   3      16m

//查看令牌

[root@localhost dashboard]# kubectl describe secret dashboard-admin-token-7bm26 -n kube-system
Name:         dashboard-admin-token-7bm26
Namespace:    kube-system
Labels:       <none>
Annotations:  kubernetes.io/service-account.name: dashboard-admin
              kubernetes.io/service-account.uid: 8d3a76f9-929f-11ea-96fd-000c297c1b9b

Type:  kubernetes.io/service-account-token

Data
====
ca.crt:     1359 bytes
namespace:  11 bytes
token:      eyJhbGciOiJSUzI1NiIsImtpZCI6IiJ9.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.EPvr9wEsCmYU4O1Jr7panpbPJISheqfFjSgwuKbNqmi8aJ2dpuE7TUhOgePaDFElVItyNrORVA61Gt13EMRIFulblHYp2iQ0kPrcJrCgoK2W6Ld7R1PHnNGcb6rsPid0ffNUdtANQhmtdA_PEvd0foMFvkzajS-5gJyQo_03p1Mu8_dTtZaHpowQbVL8EOpTGFAqVTd1zvx_5waj21KZhMKftCPLEm3dzPkHanDrUACSBHDgLnbVGin6r-jfvG8eZDk4-EvdKYp8mMKzklLhAUrwFOz73So0fMI4A27zL-IZ5c5t17APP5WNPRXBBTiuZHngakpACfhE_qK7Ek84FQ

6.登陸dashbord（如果node1地址訪問不了，可以嘗試用node2地址，因爲apply之後，地址可能會重新獲取）