【k8s第三步】Kubernetes-Dashboard仪表盘【已修正错误】

⒈下载描述文件

wget https://raw.githubusercontent.com/kubernetes/dashboard/v2.0.0-beta6/aio/deploy/recommended.yaml

⒉在主节点上运行

kubectl apply -f recommended.yaml

⒊查看相关pod

kubectl get pod -n kubernetes-dashboard -o wide

⒋查看相关服务

kubectl get service -n kubernetes-dashboard

*如果启动不成功可以执行以下命令删除

kubectl delete ns kubernetes-dashboard

⒌开启代理

kubectl proxy

⒍访问web地址

http://localhost:8001/api/v1/namespaces/kubernetes-dashboard/services/https:kubernetes-dashboard:/proxy/.

⒎官方Github上有创建用户的例子，我这里就不详细赘述了。

https://github.com/kubernetes/dashboard/blob/master/docs/user/access-control/creating-sample-user.md

打开上面我们下载的yaml资源文件就可以看到，官方资源文件中有为我们提供一个名为kubernetes-dashboard的用户

---

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:
      containers:
        - name: kubernetes-dashboard
          image: kubernetesui/dashboard:v2.0.0-beta6
          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:
      containers:
        - name: dashboard-metrics-scraper
          image: 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: {}

让我们拿到这个用户令牌进行登录,执行一下命令

kubectl -n kubernetes-dashboard describe secret $(kubectl -n kubernetes-dashboard get secret | grep kubernetes-dashboard | awk '{print $1}')

得到下面的结果

Name:         kubernetes-dashboard-certs
Namespace:    kubernetes-dashboard
Labels:       k8s-app=kubernetes-dashboard
Annotations:  
Type:         Opaque

Data
====


Name:         kubernetes-dashboard-csrf
Namespace:    kubernetes-dashboard
Labels:       k8s-app=kubernetes-dashboard
Annotations:  
Type:         Opaque

Data
====
csrf:  256 bytes


Name:         kubernetes-dashboard-key-holder
Namespace:    kubernetes-dashboard
Labels:       <none>
Annotations:  <none>

Type:  Opaque

Data
====
priv:  1675 bytes
pub:   459 bytes


Name:         kubernetes-dashboard-token-jlgrx
Namespace:    kubernetes-dashboard
Labels:       <none>
Annotations:  kubernetes.io/service-account.name: kubernetes-dashboard
              kubernetes.io/service-account.uid: 08975c17-e411-4cc3-925e-6ab23de2d698

Type:  kubernetes.io/service-account-token

Data
====
ca.crt:     1025 bytes
namespace:  20 bytes
token:      eyJhbGciOiJSUzI1NiIsImtpZCI6Ikt6bVM4VFZQMm9ZZFJ3d2tlM0hLczlFZmFldjdmeFJfZnpISkR4dW15eGMifQ.eyJpc3MiOiJrdWJlcm5ldGVzL3NlcnZpY2VhY2NvdW50Iiwia3ViZXJuZXRlcy5pby9zZXJ2aWNlYWNjb3VudC9uYW1lc3BhY2UiOiJrdWJlcm5ldGVzLWRhc2hib2FyZCIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VjcmV0Lm5hbWUiOiJrdWJlcm5ldGVzLWRhc2hib2FyZC10b2tlbi1qbGdyeCIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VydmljZS1hY2NvdW50Lm5hbWUiOiJrdWJlcm5ldGVzLWRhc2hib2FyZCIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VydmljZS1hY2NvdW50LnVpZCI6IjA4OTc1YzE3LWU0MTEtNGNjMy05MjVlLTZhYjIzZGUyZDY5OCIsInN1YiI6InN5c3RlbTpzZXJ2aWNlYWNjb3VudDprdWJlcm5ldGVzLWRhc2hib2FyZDprdWJlcm5ldGVzLWRhc2hib2FyZCJ9.qsiB0fqmSXUGRd7u2HyLD1SReLacjeKck-7o5klSudcjzthrEvNt0sbuvggI9GhwKyp0vuxnDcQTFHTSdyDtf-cuLyjfI6lBiufVNmd4ArZwlf7V4u673MB-yNANry3wJfY1Sk-ijIFBYXWyiESiTR4oAWPTi6-7Eee9kPalTFGcD0k5f_VasfWzT2PzONbaxH98q9oFUbx5kFK86Xkw-BgucwGwfUA_O9VjbCHYJOj3QpNd0VugFXzvCA7Cn9gXqEmkzS05uz3puVJPqfJ94ggV-XaIyuO7QxlEFJwoeIQ7gdfE6Wtgpgo3G_dVv8KXB9dNnaaWlyV45jJ2y64Idg