6.kubernetes的GUI资源管理插件-dashboard

目录

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

准备dashboard镜像

[root@hdss7-200 k8s-yaml]# docker pull k8scn/kubernetes-dashboard-amd64:v1.8.3
[root@hdss7-200 k8s-yaml]# docker images|grep dashboard
[root@hdss7-200 k8s-yaml]# docker tag fcac9aa03fd6 harbor.fx.com/public/dashboard:v1.8.3
[root@hdss7-200 k8s-yaml]# docker push harbor.fx.com/public/dashboard:v1.8.3

创建资源配置清单

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

rabc.yaml

[root@hdss7-200 dashboard]# vim 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@hdss7-200 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.fx.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

[root@hdss7-200 dashboard]# vim 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@hdss7-200 dashboard]# vim ingress.yaml
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: kubernetes-dashboard
  namespace: kube-system
  annotations:
    kubernetes.io/ingress.class: traefik
spec:
  rules:
  - host: dashboard.fx.com
    http:
      paths:
      - backend:
          serviceName: kubernetes-dashboard
          servicePort: 443

应用资源配置清单

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

查看创建的资源

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

解析域名

[root@hdss7-11 ~]# vim /var/named/fx.com.zone
$ORIGIN fx.com.
$TTL 600        ; 10 minutes
@               IN SOA  dns.fx.com. dnsadmin.fx.com. (
                        2020061010  ; serial
                         10800      ; refresh (3 hours)
                         900        ; retry (15 minutes)
                         604800     ; expire (1 week)
                         86400      ; minimum (1 day)
                         )
                        NS      dns.fx.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 ~]# systemctl restart named 

浏览器访问

http://dashboard.fx.com/

 创建dashboard证书

[root@hdss7- certs]# (umask ; openssl genrsa -out dashboard.fx.com.key )
[root@hdss7- certs]# openssl req -new -key dashboard.fx.com.key -out dashboard.fx.com.csr -subj "/CN=dashboard.fx.com/C=CN/ST=BJ/L=Beijing/O=fangxing/OU=ops"
[root@hdss7- certs]# openssl x509 -req -in dashboard.fx.com.csr -CA ca.pem -CAkey ca-key.pem -CAcreateserial -out dashboard.fx.com.crt -days 

拷贝证书

在HDSS7-11.host.com上

[root@hdss7- conf.d]# mkdir -p /etc/nginx/certs  && cd /etc/nginx/certs
[root@hdss7- certs]# scp hdss7-:/opt/certs/dashboard.fx.com.crt .
[root@hdss7- certs]# scp hdss7-:/opt/certs/dashboard.fx.com.key .

注:HDSS7-12.host.com也需要copy证书

配置nginx证书

在HDSS7-11.host.com上

[root@hdss7- conf.d]# vim dashboard.fx.com.conf
server {
    listen      ;
    server_name dashboard.fx.com;
 
    rewrite ^(.*)$ https://${server_name}$1 permanent;
}
server {
    listen       ssl;
    server_name dashboard.fx.com;
 
    ssl_certificate "certs/dashboard.fx.com.crt";
    ssl_certificate_key "certs/dashboard.fx.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;
    }
}

注:HDSS7-12.host.com也需要配置nginx

令牌命令行获取方式

[root@hdss7-21 ~]# kubectl get secret -n kube-system
[root@hdss7-21 ~]# kubectl describe secret kubernetes-dashboard-admin-token-c8gsp -n kube-system
Name:         kubernetes-dashboard-admin-token-c8gsp
Namespace:    kube-system
Labels:       <none>
Annotations:  kubernetes.io/service-account.name: kubernetes-dashboard-admin
              kubernetes.io/service-account.uid: 22e7c7e4-8c03-4dad-a942-2a00a6689d14
 
Type:  kubernetes.io/service-account-token
 
Data
====
token:      eyJhbGciOiJSUzI1NiIsImtpZCI6IiJ9.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.eM2aJ7L9amwdo6XHYT2S5w6FMTdsu8u6hmB5bAcLrDJPwdiNMevriF9LensNtdobZlUd10qTmJ_uVDl7W_pW7sycN1MYpSyre7FPMiwaH8bSpcwCibgMSoCA5ce9eShePJ14iErBD12h1ru0BI1O-Vk-WC9yfBdrbBG4e9R3YclaKCo38Y7wS2WgMi0intELPyG-Sb8s3BTpPdnFBN5I_FAFtmAmonpuAz17FpxrMxF7ZlJXxhPwY1GoAHkKDkvw3J3z6peEGAazqZup-N4b6cjAyIucLd4xNbUXviAP6lGDGFAaHF7E-oN2Ec8WWNm3M26m2I3zxb_fyl8v9lNacQ
ca.crt:     1342 bytes
namespace:  11 bytes

注:令牌对应的是token

验证令牌登录

部署heapster

[root@hdss7- dashboard]# mkdir heapster
[root@hdss7- heapster]# docker pull quay.io/bitnami/heapster:1.5.
[root@hdss7- heapster]# docker tag c359b95ad38b harbor.fx.com/public/heapster:v1.5.4
[root@hdss7- heapster]# docker push harbor.fx.com/public/heapster:v1.5.4

应用heapster配置清单

[root@hdss7- ~]# kubectl apply -f http://k8s-yaml.fx.com/dashboard/heapster/rbac.yaml
[root@hdss7- ~]# kubectl apply -f http://k8s-yaml.fx.com/dashboard/heapster/deployment.yaml
[root@hdss7- ~]# kubectl apply -f http://k8s-yaml.fx.com/dashboard/heapster/svc.yaml

重新登录dashboard查看