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5.kubernetes的GUI资源管理插件-仪表盘

2020年04月26日  | 移动技术网科技  | 我要评论

目录

1.准备dashboard镜像

[root@hdss7-200 harbor]# docker pull k8scn/kubernetes-dashboard-amd64:v1.8.3
[root@hdss7-200 harbor]# docker images|grep dashboard
[root@hdss7-200 harbor]# docker tag fcac9aa03fd6  harbor.od.com/public/dashboard:v1.8.3
[root@hdss7-200 harbor]# docker push harbor.od.com/public/dashboard:v1.8.3

2.创建资源配置清单

在hdss7-200.host.com上

[root@hdss7-200 harbor]# mkdir -p /data/k8s-yaml/dashboard && cd /data/k8s-yaml/dashboard

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

  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:
          # platform-specific args here
          - --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

   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

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@hdss7-21 containers]# kubectl apply -f http://k8s-yaml.od.com/dashboard/rbac.yaml
[root@hdss7-21 containers]# kubectl apply -f http://k8s-yaml.od.com/dashboard/dp.yaml
[root@hdss7-21 containers]# kubectl apply -f http://k8s-yaml.od.com/dashboard/svc.yaml
[root@hdss7-21 containers]# kubectl apply -f http://k8s-yaml.od.com/dashboard/ingress.yaml

4.查看创建的资源

[root@hdss7-21 containers]# kubectl get pods -n kube-system
[root@hdss7-21 containers]# kubectl get svc -n kube-system
[root@hdss7-21 containers]# kubectl get ingress -n kube-system

5.解析域名

[root@hdss7-11 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    10.4.7.11
harbor             a    10.4.7.200
k8s-yaml           a    10.4.7.200
traefik            a    10.4.7.10
dashboard          a    10.4.7.10

[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

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