Kubernetes第五曲 搭建web界面

在master01上操作

[root@localhost k8s]# mkdir dashboard
#拷贝官方的文件
[root@localhost dashboard]# ls
dashboard-configmap.yaml   dashboard-rbac.yaml    dashboard-service.yaml
dashboard-controller.yaml  dashboard-secret.yaml  k8s-admin.yaml

[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

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

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

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

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

#完成后查看创建在指定的kube-system命名空间下
[root@localhost dashboard]# kubectl get pods -n kube-system
NAME                                    READY   STATUS              RESTARTS   AGE
kubernetes-dashboard-65f974f565-m9gm8   0/1     ContainerCreating   0          88s

#查看如何访问
[root@localhost dashboard]# kubectl get pods,svc -n kube-system
NAME                                        READY   STATUS    RESTARTS   AGE
pod/kubernetes-dashboard-65f974f565-m9gm8   1/1     Running   0          2m49s

NAME                           TYPE       CLUSTER-IP   EXTERNAL-IP   PORT(S)         AGE
service/kubernetes-dashboard   NodePort   10.0.0.243   <none>        443:30001/TCP   2m24s

访问nodeIP就可以访问（火狐浏览器可以直接访问）
https://192.168.221.90:30001/

#谷歌浏览器无法访问的问题
[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

[root@localhost dashboard]# bash dashboard-cert.sh /root/k8s/k8s-cert/
2020/02/05 15:29:08 [INFO] generate received request
2020/02/05 15:29:08 [INFO] received CSR
2020/02/05 15:29:08 [INFO] generating key: rsa-2048
2020/02/05 15:29:09 [INFO] encoded CSR
2020/02/05 15:29:09 [INFO] signed certificate with serial number 150066859036029062260457207091479364937405390263
2020/02/05 15:29:09 [WARNING] This certificate lacks a "hosts" field. This makes it unsuitable for
websites. For more information see the Baseline Requirements for the Issuance and Management
of Publicly-Trusted Certificates, v.1.1.6, from the CA/Browser Forum (https://cabforum.org);
specifically, section 10.2.3 ("Information Requirements").
secret "kubernetes-dashboard-certs" deleted
secret/kubernetes-dashboard-certs created

[root@localhost dashboard]# vim dashboard-controller.yaml
args:
          # PLATFORM-SPECIFIC ARGS HERE
          - --auto-generate-certificates
          - --tls-key-file=dashboard-key.pem
          - --tls-cert-file=dashboard.pem
#重新部署（注意：当apply不生效时，先使用delete清除资源，再apply创建资源）

[root@localhost dashboard]# kubectl apply -f dashboard-controller.yaml 
Warning: kubectl apply should be used on resource created by either kubectl create --save-config or kubectl apply
serviceaccount/kubernetes-dashboard configured
Warning: kubectl apply should be used on resource created by either kubectl create --save-config or kubectl apply
deployment.apps/kubernetes-dashboard configured

#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
[root@localhost dashboard]# kubectl get secret -n kube-system
NAME                               TYPE                                  DATA   AGE
dashboard-admin-token-qctfr        kubernetes.io/service-account-token   3      65s
default-token-mmvcg                kubernetes.io/service-account-token   3      7d15h
kubernetes-dashboard-certs         Opaque                                11     10m
kubernetes-dashboard-key-holder    Opaque                                2      63m
kubernetes-dashboard-token-nsc84   kubernetes.io/service-account-token   3      62m
#查看令牌
[root@localhost dashboard]# kubectl describe secret dashboard-admin-token-qctfr -n kube-system
Name:         dashboard-admin-token-qctfr
Namespace:    kube-system
Labels:       <none>
Annotations:  kubernetes.io/service-account.name: dashboard-admin
              kubernetes.io/service-account.uid: 73f19313-47ea-11ea-895a-000c297a15fb

Type:  kubernetes.io/service-account-token

Data
====
ca.crt:     1359 bytes
namespace:  11 bytes
token:      eyJhbGciOiJSUzI1NiIsImtpZCI6IiJ9.eyJpc3MiOiJrdWJlcm5ldGVzL3NlcnZpY2VhY2NvdW50Iiwia3ViZXJuZXRlcy5pby9zZXJ2aWNlY
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djAjZNB_tmMY_Pjao4DBnD2t_JXZUkCUNW_O2D0mUFQP2beE_NE2ZSEtEvmesB8vU2cayTm_94xfvtNjfmGrPwtkdH0iy8sH-
T0apepJ7wnZNTGuKOsOJf76tU31qF4E5XRXIt-F2Jmv9pEOFuahSBSaEGwwzXlXOVMSaRF9cBFxn-0iXRh0Aq0K21HdPHW1b4-ZQwA