一、配置文件recommended.yaml

vim recommended.yaml

apiVersion: v1
kind: Namespace
metadata:
  name: kubernetes-dashboard

---

apiVersion: v1
kind: ServiceAccount
metadata:
  labels:
    k8s-app: kubernetes-dashboard
  name: kubernetes-dashboard
  namespace: kubernetes-dashboard

---

kind: Service
apiVersion: v1
metadata:
  labels:
    k8s-app: kubernetes-dashboard
  name: kubernetes-dashboard
  namespace: kubernetes-dashboard
spec:
  ports:
    - port: 443
      targetPort: 8443
      nodePort: 30001
  type: NodePort
  selector:
    k8s-app: kubernetes-dashboard

---

apiVersion: v1
kind: Secret
metadata:
  labels:
    k8s-app: kubernetes-dashboard
  name: kubernetes-dashboard-certs
  namespace: kubernetes-dashboard
type: Opaque

---

apiVersion: v1
kind: Secret
metadata:
  labels:
    k8s-app: kubernetes-dashboard
  name: kubernetes-dashboard-csrf
  namespace: kubernetes-dashboard
type: Opaque
data:
  csrf: ""

---

apiVersion: v1
kind: Secret
metadata:
  labels:
    k8s-app: kubernetes-dashboard
  name: kubernetes-dashboard-key-holder
  namespace: kubernetes-dashboard
type: Opaque

---

kind: ConfigMap
apiVersion: v1
metadata:
  labels:
    k8s-app: kubernetes-dashboard
  name: kubernetes-dashboard-settings
  namespace: kubernetes-dashboard

---

kind: Role
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  labels:
    k8s-app: kubernetes-dashboard
  name: kubernetes-dashboard
  namespace: kubernetes-dashboard
rules:
  # Allow Dashboard to get, update and delete Dashboard exclusive secrets.
  - apiGroups: [""]
    resources: ["secrets"]
    resourceNames: ["kubernetes-dashboard-key-holder", "kubernetes-dashboard-certs", "kubernetes-dashboard-csrf"]
    verbs: ["get", "update", "delete"]
    # Allow Dashboard to get and update 'kubernetes-dashboard-settings' config map.
  - apiGroups: [""]
    resources: ["configmaps"]
    resourceNames: ["kubernetes-dashboard-settings"]
    verbs: ["get", "update"]
    # Allow Dashboard to get metrics.
  - apiGroups: [""]
    resources: ["services"]
    resourceNames: ["heapster", "dashboard-metrics-scraper"]
    verbs: ["proxy"]
  - apiGroups: [""]
    resources: ["services/proxy"]
    resourceNames: ["heapster", "http:heapster:", "https:heapster:", "dashboard-metrics-scraper", "http:dashboard-metrics-scraper"]
    verbs: ["get"]

---

kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  labels:
    k8s-app: kubernetes-dashboard
  name: kubernetes-dashboard
rules:
  # Allow Metrics Scraper to get metrics from the Metrics server
  - apiGroups: ["metrics.k8s.io"]
    resources: ["pods", "nodes"]
    verbs: ["get", "list", "watch"]

---

apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
  labels:
    k8s-app: kubernetes-dashboard
  name: kubernetes-dashboard
  namespace: kubernetes-dashboard
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: Role
  name: kubernetes-dashboard
subjects:
  - kind: ServiceAccount
    name: kubernetes-dashboard
    namespace: kubernetes-dashboard

---

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: kubernetes-dashboard
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: kubernetes-dashboard
subjects:
  - kind: ServiceAccount
    name: kubernetes-dashboard
    namespace: kubernetes-dashboard

---

kind: Deployment
apiVersion: apps/v1
metadata:
  labels:
    k8s-app: kubernetes-dashboard
  name: kubernetes-dashboard
  namespace: kubernetes-dashboard
spec:
  replicas: 1
  revisionHistoryLimit: 10
  selector:
    matchLabels:
      k8s-app: kubernetes-dashboard
  template:
    metadata:
      labels:
        k8s-app: kubernetes-dashboard
    spec:
      nodeName: k8s-worker-216-198
      containers:
        - name: kubernetes-dashboard
          image: reg.test.bestpay.net/kubernetesui/dashboard:v2.0.0-beta8
          imagePullPolicy: Always
          ports:
            - containerPort: 8443
              protocol: TCP
          args:
            - --auto-generate-certificates
            - --namespace=kubernetes-dashboard
            # Uncomment the following line to manually specify Kubernetes API server Host
            # If not specified, Dashboard will attempt to auto discover the API server and connect
            # to it. Uncomment only if the default does not work.
            # - --apiserver-host=http://my-address:port
          volumeMounts:
            - name: kubernetes-dashboard-certs
              mountPath: /certs
              # Create on-disk volume to store exec logs
            - mountPath: /tmp
              name: tmp-volume
          livenessProbe:
            httpGet:
              scheme: HTTPS
              path: /
              port: 8443
            initialDelaySeconds: 30
            timeoutSeconds: 30
          securityContext:
            allowPrivilegeEscalation: false
            readOnlyRootFilesystem: true
            runAsUser: 1001
            runAsGroup: 2001
      volumes:
        - name: kubernetes-dashboard-certs
          secret:
            secretName: kubernetes-dashboard-certs
        - name: tmp-volume
          emptyDir: {}
      serviceAccountName: kubernetes-dashboard
      nodeSelector:
        "beta.kubernetes.io/os": linux
      # Comment the following tolerations if Dashboard must not be deployed on master
      tolerations:
        - key: node-role.kubernetes.io/master
          effect: NoSchedule

---

kind: Service
apiVersion: v1
metadata:
  labels:
    k8s-app: dashboard-metrics-scraper
  name: dashboard-metrics-scraper
  namespace: kubernetes-dashboard
spec:
  ports:
    - port: 8000
      targetPort: 8000
  selector:
    k8s-app: dashboard-metrics-scraper

---

kind: Deployment
apiVersion: apps/v1
metadata:
  labels:
    k8s-app: dashboard-metrics-scraper
  name: dashboard-metrics-scraper
  namespace: kubernetes-dashboard
spec:
  replicas: 1
  revisionHistoryLimit: 10
  selector:
    matchLabels:
      k8s-app: dashboard-metrics-scraper
  template:
    metadata:
      labels:
        k8s-app: dashboard-metrics-scraper
      annotations:
        seccomp.security.alpha.kubernetes.io/pod: 'runtime/default'
    spec:
      nodeName: k8s-worker-216-198
      containers:
        - name: dashboard-metrics-scraper
          image: reg.test.bestpay.net/kubernetesui/metrics-scraper:v1.0.1
          ports:
            - containerPort: 8000
              protocol: TCP
          livenessProbe:
            httpGet:
              scheme: HTTP
              path: /
              port: 8000
            initialDelaySeconds: 30
            timeoutSeconds: 30
          volumeMounts:
          - mountPath: /tmp
            name: tmp-volume
          securityContext:
            allowPrivilegeEscalation: false
            readOnlyRootFilesystem: true
            runAsUser: 1001
            runAsGroup: 2001
      serviceAccountName: kubernetes-dashboard
      nodeSelector:
        "beta.kubernetes.io/os": linux
      # Comment the following tolerations if Dashboard must not be deployed on master
      tolerations:
        - key: node-role.kubernetes.io/master
          effect: NoSchedule
      volumes:
        - name: tmp-volume
          emptyDir: {}

注意： reg.test.bestpay.net 替换为 registry.cn-hangzhou.aliyuncs.com

二、配置

1、指定在某个worker节点执行 添加配置 nodeName: k8s-worker-216-198

spec:
  replicas: 1
  revisionHistoryLimit: 10
  selector:
    matchLabels:
      k8s-app: kubernetes-dashboard
  template:
    metadata:
      labels:
        k8s-app: kubernetes-dashboard
    spec:
      nodeName: k8s-worker-216-198
      containers:
        - name: kubernetes-dashboard
          image: reg.test.bestpay.net/kubernetesui/dashboard:v2.0.0-beta8
          imagePullPolicy: Always
          ports:
            - containerPort: 8443
              protocol: TCP
          args:
            - --auto-generate-certificates
            - --namespace=kubernetes-dashboard

2、默认Dashboard只能集群内部访问，修改Service为NodePort类型，暴露到外部(kubernetes-dashboard部分), 如下：

vi recommended.yaml
kind: Service
apiVersion: v1
metadata:
  labels:
    k8s-app: kubernetes-dashboard
  name: kubernetes-dashboard
  namespace: kubernetes-dashboard
spec:
  ports:
    - port: 443
      targetPort: 8443
      nodePort: 30001
  type: NodePort
  selector:
    k8s-app: kubernetes-dashboard

3、创建dashboard-admin帐号

cat >> recommended_add_admin.yaml << EOF
---
# ------------------- dashboard-admin ------------------- #
apiVersion: v1
kind: ServiceAccount
metadata:
  name: dashboard-admin
  namespace: kubernetes-dashboard

---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRoleBinding
metadata:
  name: dashboard-admin
subjects:
- kind: ServiceAccount
  name: dashboard-admin
  namespace: kubernetes-dashboard
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: cluster-admin
EOF

kubectl apply -f recommended_add_admin.yaml

4、获取令牌,登录页面需要

[root@k8s-master-216-200 cfg]# kubectl describe secrets -n kubernetes-dashboard dashboard-admin
Name:         dashboard-admin-token-ntzvq
Namespace:    kubernetes-dashboard
Labels:       <none>
Annotations:  kubernetes.io/service-account.name: dashboard-admin
              kubernetes.io/service-account.uid: 40f55e54-f766-47eb-97fd-a80efcf433aa

Type:  kubernetes.io/service-account-token

Data
====
token:      eyJhbGciOiJSUzI1NiIsImtpZCI6IkFRM0pxR2k5YzhOUUFzZjRaTklKUzZsNGNUTUF6WS13MDk1cXpmVnNqX1UifQ.eyJpc3MiOiJrdWJlcm5ldGVzL3NlcnZpY2VhY2NvdW50Iiwia3ViZXJuZXRlcy5pby9zZXJ2aWNlYWNjb3VudC9uYW1lc3BhY2UiOiJrdWJlcm5ldGVzLWRhc2hib2FyZCIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VjcmV0Lm5hbWUiOiJkYXNoYm9hcmQtYWRtaW4tdG9rZW4tbnR6dnEiLCJrdWJlcm5ldGVzLmlvL3NlcnZpY2VhY2NvdW50L3NlcnZpY2UtYWNjb3VudC5uYW1lIjoiZGFzaGJvYXJkLWFkbWluIiwia3ViZXJuZXRlcy5pby9zZXJ2aWNlYWNjb3VudC9zZXJ2aWNlLWFjY291bnQudWlkIjoiNDBmNTVlNTQtZjc2Ni00N2ViLTk3ZmQtYTgwZWZjZjQzM2FhIiwic3ViIjoic3lzdGVtOnNlcnZpY2VhY2NvdW50Omt1YmVybmV0ZXMtZGFzaGJvYXJkOmRhc2hib2FyZC1hZG1pbiJ9.N1X5r00NRRWZGmOsxO6XcrNt7hNrJJbKEdK8XT2Tlty7wl0Ud-iKnyoOPRzAHv5ogWtMGItBKHJ58GYgfYur0XL3VqUyv4UeuyKGzKkrxh5QSkQDXWoTWMqpJWbR-sOan8wVZ6zo1NfqxgXlni-wAj_GECuTdlC_wpqCEijOryeLQj_w7xc7oGbaux7CyciVcUi_ONhGSvkPsSeKuzQd1uG-qg_ApQwKVHAr0CA6g4QeZnHFwtUynGxZk84a2k-S5QvtlYg0pREucQ7DOyfF683zpeMsFFnfeX-Bw0em0fptIh8QtBPLg2gkqWh0aeu57Vb6bFLm3VNtpjGvlle6Hg
ca.crt:     1363 bytes
namespace:  20 bytes

三、启动

kubectl apply -f recommended.yaml

四、查看状态

[root@k8s-master-216-200 cfg]#  kubectl get pods,svc --all-namespaces -o wide
NAMESPACE              NAME                                           READY   STATUS    RESTARTS   AGE   IP               NODE                 NOMINATED NODE   READINESS GATES
kube-system            pod/kube-flannel-ds-amd64-jnnwg                1/1     Running   0          40h   172.17.216.200   k8s-master-216-200   <none>           <none>
kube-system            pod/kube-flannel-ds-amd64-s9hmz                1/1     Running   6          40h   172.17.216.198   k8s-worker-216-198   <none>           <none>
kube-system            pod/kube-flannel-ds-amd64-vt8cl                1/1     Running   3          40h   172.17.216.199   k8s-worker-216-199   <none>           <none>
kubernetes-dashboard   pod/dashboard-metrics-scraper-cd77fc8d-k5pm4   1/1     Running   0          40h   172.10.2.5       k8s-worker-216-198   <none>           <none>
kubernetes-dashboard   pod/kubernetes-dashboard-9d8dc486-675wl        1/1     Running   0          40h   172.10.2.4       k8s-worker-216-198   <none>           <none>

NAMESPACE              NAME                                TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)         AGE     SELECTOR
default                service/kubernetes                  ClusterIP   172.10.0.1     <none>        443/TCP         4d17h   <none>
kubernetes-dashboard   service/dashboard-metrics-scraper   ClusterIP   172.10.0.168   <none>        8000/TCP        40h     k8s-app=dashboard-metrics-scraper
kubernetes-dashboard   service/kubernetes-dashboard        NodePort    172.10.0.34    <none>        443:30001/TCP   40h     k8s-app=kubernetes-dashboard

火狐浏览器访问地址 https://172.17.216.200:30001/#/login
在这里插入图片描述

五、异常排查

 kubectl logs pod/dashboard-metrics-scraper-cd77fc8d-k5pm4 -n kubernetes-dashboard

参考大佬文章 https://blog.csdn.net/wangshui898/article/details/109119189

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