019.Kubernetes二進位部署插件dashboard

一 修改配置文件

1.1 下載解壓

  1 [root@k8smaster01 ~]# cd /opt/k8s/work/kubernetes/
  2 [root@k8smaster01 kubernetes]# tar -xzvf kubernetes-src.tar.gz

1.2 修改配置

  1 [root@k8smaster01 ~]# cd /opt/k8s/work/kubernetes/cluster/addons/dashboard
  2 [root@k8smaster01 dashboard]# vi dashboard-service.yaml
  3 ……
  4   type: NodePort			#增加此行，使用node形式訪問
  5 ……
  6 #使用node方式訪問dashboard

1.3 修改為國內源

  1 [root@k8smaster01 dashboard]# vi dashboard-controller.yaml
  2 ……
  3         image: mirrorgooglecontainers/kubernetes-dashboard-amd64:v1.10.1
  4 ……

二 創建 dashboard

2.1 創建dashboard並檢查

  1 [root@k8smaster01 ~]# cd /opt/k8s/work/kubernetes/cluster/addons/dashboard
  2 [root@k8smaster01 dashboard]# kubectl apply -f .

2.2 查看分配的NodePort

  1 [root@k8smaster01 ~]# kubectl get deployment kubernetes-dashboard -n kube-system
  2 NAME                  READY    UP-TO-DATE    AVAILABLE    AGE
  3 kubernetes-dashboard  1/1      1             1            84s
  4 [root@k8smaster01 ~]# kubectl --namespace kube-system get pods -o wide
  5 [root@k8smaster01 ~]# kubectl get services kubernetes-dashboard -n kube-system

2.3 查看dashboard參數

  1 [root@k8smaster01 ~]# kubectl exec --namespace kube-system -it kubernetes-dashboard-7848d45466-bgz94  -- /dashboard --help

三 dashboard驗證方式

3.1 創建證書

  1 [root@k8smaster01 ~]# cd /opt/k8s/work/
  2 [root@k8smaster01 work]# openssl genrsa -out dashboard.key 2048
  3 [root@k8smaster01 work]# openssl rsa -passin pass:x -in dashboard.key -out dashboard.key
  4 [root@k8smaster01 work]# openssl req -new -key dashboard.key -out dashboard.csr
  5 -----
  6 Country Name (2 letter code) [XX]:CN
  7 State or Province Name (full name) []:Shanghai
  8 Locality Name (eg, city) [Default City]:Shanghai
  9 Organization Name (eg, company) [Default Company Ltd]:k8s
 10 Organizational Unit Name (eg, section) []:System
 11 [root@k8smaster01 work]# openssl x509 -req -sha256 -days 365 -in dashboard.csr -signkey dashboard.key -out dashboard.crt
 12 [root@k8smaster01 work]# openssl x509  -noout -text -in ./dashboard.crt		#查看證書

3.2 分發證書

  1 [root@k8smaster01 ~]# cd /opt/k8s/work
  2 [root@k8smaster01 work]# source /opt/k8s/bin/environment.sh
  3 [root@k8smaster01 work]# for all_ip in ${ALL_IPS[@]}
  4   do
  5     echo ">>> ${all_ip}"
  6     scp dashboard.* root@${all_ip}:/etc/kubernetes/cert
  7   done

3.3 修改預設證書配置

  1 [root@k8smaster01 work]# cd /opt/k8s/work/kubernetes/cluster/addons/dashboard
  2 [root@k8smaster01 dashboard]# kubectl delete -f .		#刪除使用預設證書所創建的dashboard
  3 [root@k8smaster01 dashboard]# ll /etc/kubernetes/cert/dashboard.*
  4 -rw-r--r-- 1 root root 1.2K Jun 28 18:06 /etc/kubernetes/cert/dashboard.crt
  5 -rw-r--r-- 1 root root  976 Jun 28 18:06 /etc/kubernetes/cert/dashboard.csr
  6 -rw-r--r-- 1 root root 1.7K Jun 28 18:06 /etc/kubernetes/cert/dashboard.key
  7 
  8 [root@master dashboard]# kubectl create secret generic kubernetes-dashboard-certs --from-file="/etc/kubernetes/cert/dashboard.crt,/etc/kubernetes/cert/dashboard.key" -n kube-system	#掛載新證書到dashboard
  9 [root@master dashboard]# kubectl get secret kubernetes-dashboard-certs -n kube-system -o yaml	#查看新證書

3.4 重新部署dashboard

  1 [root@k8smaster01 work]# cd /opt/k8s/work/kubernetes/cluster/addons/dashboard
  2 [root@master dashboard]# kubectl apply -f .
  3 [root@master dashboard]# kubectl get pods --namespace=kube-system | grep dashboard		#確認驗證

3.5 確認驗證

  1 [root@k8smaster01 ~]# kubectl get deployment kubernetes-dashboard -n kube-system
  2 [root@k8smaster01 ~]# kubectl --namespace kube-system get pods -o wide
  3 [root@k8smaster01 ~]# kubectl get services kubernetes-dashboard -n kube-system

四 訪問dashboard

3.1 導入證書

3.2 訪問方式

五 驗證方式

5.1 創建token

  1 [root@k8smaster01 ~]# kubectl create sa dashboard-admin -n kube-system
  2 [root@k8smaster01 ~]# kubectl create clusterrolebinding dashboard-admin --clusterrole=cluster-admin --serviceaccount=kube-system:dashboard-admin
  3 [root@k8smaster01 ~]# ADMIN_SECRET=$(kubectl get secrets -n kube-system | grep dashboard-admin | awk '{print $1}')
  4 [root@k8smaster01 ~]# DASHBOARD_LOGIN_TOKEN=$(kubectl describe secret -n kube-system ${ADMIN_SECRET} | grep -E '^token' | awk '{print $2}')
  5 [root@k8smaster01 ~]# echo ${DASHBOARD_LOGIN_TOKEN}	#輸入登錄的token
  6 eyJhbGciOiJSUzI1NiIsImtpZCI6IiJ9.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.X1NJsPNaAgV2TzJo0NlqOWFofDYOsSdkeiYHFGQFk5nNy0nbbnfnnoH0yumj_Ld0nGPakIjEpsUq9dqgCazeCpgk5EsygD6UlSg5sYA2sTLswbDoZdS3QzrOjY5MXWD3VDc_OQofD94MZqHMMw7IABVlfVsZ0vMEvHe-Qtyt6EQlFlHq5QjwDX8dCQDKRbwuiCr-Iy_dCWHHIhaT25BREf2viei8sZ497D8h4TXgO_u2CGf3qXRGNXj26VSdD8bT-BFGiDdyuXPbDHPU5LalvxF4WThChRfjO4zHLI2fOXq8BBF6DjbjhtG4X8fLuvJaxF4YWAmVS_78eJHhA3nvRg

3.4 創建kubeconfig文件

  1 [root@k8smaster01 ~]# cd /opt/k8s/work/
  2 [root@k8smaster01 work]# source /opt/k8s/bin/environment.sh
  3 [root@k8smaster01 work]# kubectl config set-cluster kubernetes \
  4   --certificate-authority=/etc/kubernetes/cert/ca.pem \
  5   --embed-certs=true \
  6   --server=${KUBE_APISERVER} \
  7   --kubeconfig=dashboard.kubeconfig		# 設置集群參數
  8 [root@k8smaster01 work]# kubectl config set-credentials dashboard_user \
  9   --token=${DASHBOARD_LOGIN_TOKEN} \
 10   --kubeconfig=dashboard.kubeconfig		# 設置客戶端認證參數，使用上面創建的 Token
 11 [root@k8smaster01 work]# kubectl config set-context default \
 12   --cluster=kubernetes \
 13   --user=dashboard_user \
 14   --kubeconfig=dashboard.kubeconfig		# 設置上下文參數
 15 [root@k8smaster01 work]# kubectl config use-context default --kubeconfig=dashboard.kubeconfig			# 設置預設上下文，將dashboard.kubeconfig文件導入，以便於瀏覽器使用該文件登錄。

六 正式登錄

6.1 kubeconfig訪問