[5.kubernetes的GUI资源管理插件-仪表盘]
1.准备dashboard镜像
2.创建资源配置清单
3.应用资源配置清单
4.查看创建的资源
5.解析域名
6.浏览器访问
7.令牌命令行获取方式
8.签发dashboard的证书
- 配置认证

[5.kubernetes的GUI资源管理插件-仪表盘]

1.准备dashboard镜像

[root@k8s-60 harbor]# docker pull k8scn/kubernetes-dashboard-amd64:v1.8.3
[root@k8s-60 harbor]# docker images|grep dashboard
[root@k8s-60 harbor]# docker tag fcac9aa03fd6  harbor.od.com/public/dashboard:v1.8.3
[root@k8s-60 harbor]# docker push harbor.od.com/public/dashboard:v1.8.3

2.创建资源配置清单

官方配置清单模板

https://github.com/kubernetes/kubernetes/tree/master/cluster/addons/dashboard

在k8s-60.host.com上

[root@k8s-60 harbor]# mkdir -p /data/k8s-yaml/dashboard && cd /data/k8s-yaml/dashboard

rbac.yaml

[root@k8s-60 dashboard]# vi 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

dp.yaml

[root@k8s-60 dashboard]# vi 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/dashboard:v1.8.3
        resources:
          limits:
            cpu: 100m
            memory: 300Mi
          requests:
            cpu: 50m
            memory: 100Mi
        ports:
        - containerPort: 8443
          protocol: TCP
        args:
          - --auto-generate-certificates
        volumeMounts:
        - name: tmp-volume
          mountPath: /tmp
        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"

svc.yaml

[root@k8s-60 dashboard]# vi svc.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:
  selector:
    k8s-app: kubernetes-dashboard
  ports:
  - port: 443
    targetPort: 8443

ingress.yaml

[root@k8s-60 dashboard]# vi 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-dashboard
          servicePort: 443

3.应用资源配置清单

[root@k8s-40 ~]# kubectl apply -f http://k8s-yaml.od.com/dashboard/rbac.yaml
[root@k8s-40 ~]# kubectl apply -f http://k8s-yaml.od.com/dashboard/dp.yaml
[root@k8s-40 ~]# kubectl apply -f http://k8s-yaml.od.com/dashboard/svc.yaml
[root@k8s-40 ~]# kubectl apply -f http://k8s-yaml.od.com/dashboard/ingress.yaml

4.查看创建的资源

[root@k8s-40 ~]# kubectl get pods -n kube-system
NAME                                    READY   STATUS    RESTARTS   AGE
coredns-6b6c4f9648-8fzsf                1/1     Running   0          18m
kubernetes-dashboard-76dcdb4677-67bwn   1/1     Running   0          21s
traefik-ingress-96th7                   1/1     Running   0          10m
traefik-ingress-b6rkv                   1/1     Running   0          10m
[root@k8s-40 ~]# kubectl get svc -n kube-system
NAME                      TYPE        CLUSTER-IP    EXTERNAL-IP   PORT(S)                  AGE
coredns                   ClusterIP   10.96.0.2     <none>        53/UDP,53/TCP,9153/TCP   18m
kubernetes-dashboard      ClusterIP   10.96.3.196   <none>        443/TCP                  30s
traefik-ingress-service   ClusterIP   10.96.1.198   <none>        80/TCP,8080/TCP          10m
[root@k8s-40 ~]# kubectl get ingress -n kube-system
NAME                   HOSTS              ADDRESS   PORTS   AGE
kubernetes-dashboard   dashboard.od.com             80      31s
traefik-web-ui         traefik.od.com               80      10m

5.解析域名

[root@k8s-20 conf.d]# vi /var/named/od.com.zone
$ORIGIN od.com.
$TTL 600        ; 10 minutes
@               IN SOA  dns.od.com. dnsadmin.od.com. (
                                2020042602 ; serial            //前滚一个序列号
                                10800      ; refresh (3 hours)
                                900        ; retry (15 minutes)
                                604800     ; expire (1 week)
                                86400      ; minimum (1 day)
                                )
                                NS   dns.od.com.
$TTL 60 ; 1 minute
dns                A    192.168.10.20
harbor             A    192.168.10.60
k8s-yaml           A    192.168.10.60
traefik            A    192.168.10.10
dashboard          A    192.168.10.10
[root@hdss7-11 conf.d]# systemctl restart named

6.浏览器访问

http://dashboard.od.com/

7.令牌命令行获取方式

 kubectl get secret -n kube-system
 kubectl describe secret kubernetes-dashboard-admin-token-xxxxx -n kube-system

8.签发dashboard的证书

到运维主机上操作

使用哦openssl签发

[root@k8s-60 certs]# (umask 077; openssl genrsa -out dashboard.od.com.key 2048)
[root@k8s-60 certs]# openssl req -new -key dashboard.od.com.key -out dashboar.od.com.csr -subj "/CN=dashboard.od.com/C=CN/ST=BJ/L=Beijing/O=daliuyuan/OU=ops"
[root@k8s-60 certs]# openssl x509 -req -in dashboar.od.com.csr -CA ca.pem -CAkey ca-key.pem -CAcreateserial -out dashboard.od.com.crt -days 3650
[root@k8s-60 certs]# cfssl-certinfo -cert dashboard.od.com.crt

[root@k8s-20 ~]# cd /etc/nginx/
[root@k8s-20 nginx]# mkdir certs
[root@k8s-20 nginx]# cd certs/
[root@k8s-20 certs]# scp k8s-60:/opt/certs/dashboard.od.com.crt .
[root@k8s-20 certs]# scp k8s-60:/opt/certs/dashboard.od.com.key .
加入nginx配置
[root@k8s-20 certs]# cd ../conf.d/
[root@k8s-20 conf.d]# vi dashboard.od.com.conf 
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;
    }
}
[root@k8s-20 conf.d]# nginx -t
[root@k8s-20 conf.d]# nginx -s reload

配置认证

下载新版dashboard

[root@k8s-60 ~]# docker pull hexun/kubernetes-dashboard-amd64:v1.10.1
[root@k8s-60 ~]# docker tag f9aed6605b81 harbor.od.com/public/dashboard:v1.10.1
[root@k8s-60 ~]# docker push harbor.od.com/public/dashboard:v1.10.1

运维笔记 - 教程

06 kubernetes的GUI资源管理插件-仪表盘

[5.kubernetes的GUI资源管理插件-仪表盘]

1.准备dashboard镜像

2.创建资源配置清单

rbac.yaml

dp.yaml

svc.yaml

ingress.yaml

3.应用资源配置清单

4.查看创建的资源

5.解析域名

6.浏览器访问

7.令牌命令行获取方式

8.签发dashboard的证书

配置认证