• 【k8s管理--可视化界面】

    1、可视化界面的软件

    2、kubernetes dashboard的安装

    2.1 创建recommended配置文件

    # Copyright 2017 The Kubernetes Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

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:
  type: NodePort  # 通过nodePort暴露一个service端口来供访问
  ports:
    - port: 443
      targetPort: 8443
  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:
      securityContext:
        seccompProfile:
          type: RuntimeDefault
      containers:
        - name: kubernetes-dashboard 
          image: kubernetesui/dashboard:v2.7.0
          imagePullPolicy: IfNotPresent 
          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:
        "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
    spec:
      securityContext:
        seccompProfile:
          type: RuntimeDefault
      containers:
        - name: dashboard-metrics-scraper
          image: kubernetesui/metrics-scraper:v1.0.8
          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:
        "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: {}

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    2.2 创建dashboard-admin配置文件

    ---
apiVersion: v1
kind: ServiceAccount
metadata:
  labels:
    k8s-app: kubernetes-dashboard
  name: dashboard-admin
  namespace: kubernetes-dashboard
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: dashboard-admin-cluster-role
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: cluster-admin
subjects:
  - kind: ServiceAccount
    name: dashboard-admin
    namespace: kubernetes-dashboard
---
apiVersion: v1
kind: Secret
metadata:
  name: dashboard-admin
  namespace: kubernetes-dashboard
  annotations:
    kubernetes.io/service-account.name: "dashboard-admin"
type: kubernetes.io/service-account-token

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    2.3 创建dashboard的资源

    [root@k8s-master dashboard]# kubectl create -f recommended.yaml
namespace/kubernetes-dashboard created
serviceaccount/kubernetes-dashboard created
service/kubernetes-dashboard created
secret/kubernetes-dashboard-certs created
secret/kubernetes-dashboard-csrf created
secret/kubernetes-dashboard-key-holder created
configmap/kubernetes-dashboard-settings created
role.rbac.authorization.k8s.io/kubernetes-dashboard created
clusterrole.rbac.authorization.k8s.io/kubernetes-dashboard created
rolebinding.rbac.authorization.k8s.io/kubernetes-dashboard created
clusterrolebinding.rbac.authorization.k8s.io/kubernetes-dashboard created
deployment.apps/kubernetes-dashboard created
service/dashboard-metrics-scraper created
deployment.apps/dashboard-metrics-scraper created


[root@k8s-master dashboard]# kubectl create -f dashboard-admin.yaml
serviceaccount/dashboard-admin created
clusterrolebinding.rbac.authorization.k8s.io/dashboard-admin-cluster-role created
secret/dashboard-admin created


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    2.4 查看dashboard资源

    [root@k8s-master dashboard]# kubectl get all -n kubernetes-dashboard   -o wide
NAME                                             READY   STATUS    RESTARTS   AGE   IP             NODE          NOMINATED NODE   READINESS GATES
pod/dashboard-metrics-scraper-64bcc67c9c-vpscr   1/1     Running   0          10m   10.2.154.200   k8s-node-01   <none>           <none>
pod/kubernetes-dashboard-5c8bd6b59-7zjw5         1/1     Running   0          10m   10.2.154.201   k8s-node-01   <none>           <none>

NAME                                TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)         AGE   SELECTOR
service/dashboard-metrics-scraper   ClusterIP   10.1.55.182    <none>        8000/TCP        10m   k8s-app=dashboard-metrics-scraper
service/kubernetes-dashboard        NodePort    10.1.223.208   <none>        443:30663/TCP   10m   k8s-app=kubernetes-dashboard

NAME                                        READY   UP-TO-DATE   AVAILABLE   AGE   CONTAINERS                  IMAGES                                SELECTOR
deployment.apps/dashboard-metrics-scraper   1/1     1            1           10m   dashboard-metrics-scraper   kubernetesui/metrics-scraper:v1.0.8   k8s-app=dashboard-metrics-scraper
deployment.apps/kubernetes-dashboard        1/1     1            1           10m   kubernetes-dashboard        kubernetesui/dashboard:v2.7.0         k8s-app=kubernetes-dashboard

NAME                                                   DESIRED   CURRENT   READY   AGE   CONTAINERS                  IMAGES                                SELECTOR
replicaset.apps/dashboard-metrics-scraper-64bcc67c9c   1         1         1       10m   dashboard-metrics-scraper   kubernetesui/metrics-scraper:v1.0.8   k8s-app=dashboard-metrics-scraper,pod-template-hash=64bcc67c9c
replicaset.apps/kubernetes-dashboard-5c8bd6b59         1         1         1       10m   kubernetes-dashboard        kubernetesui/dashboard:v2.7.0         k8s-app=kubernetes-dashboard,pod-template-hash=5c8bd6b59

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    2.5 通过浏览器访问dashboard

    • 首次访问需要通过 https://: 访问
    • dashboard 登录可以使用token和kubeconfig两种方式

    在这里插入图片描述

    • 获取token的方式
      • kubectl get secret dashboard-admin -n kubernetes-dashboard -o jsonpath={“.data.token”} | base64 -d
      • kubectl describe secrets -n kubernetes-dashboard dashboard-admin
    #  获取token
[root@k8s-master dashboard]# kubectl get secret dashboard-admin  -n kubernetes-dashboard -o jsonpath={".data.token"} | base64 -d
eyJhbGciOiJSUzI1NiIsImtpZCI6IjNnaUFDWnByUW8zODNBWjdIS1VPWHJOdkM0RFhGeGxicHlPamR3aXFSWHcifQ.eyJpc3MiOiJrdWJlcm5ldGVzL3NlcnZpY2VhY2NvdW50Iiwia3ViZXJuZXRlcy5pby9zZXJ2aWNlYWNjb3VudC9uYW1lc3BhY2UiOiJrdWJlcm5ldGVzLWRhc2hib2FyZCIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VjcmV0Lm5hbWUiOiJkYXNoYm9hcmQtYWRtaW4iLCJrdWJlcm5ldGVzLmlvL3NlcnZpY2VhY2NvdW50L3NlcnZpY2UtYWNjb3VudC5uYW1lIjoiZGFzaGJvYXJkLWFkbWluIiwia3ViZXJuZXRlcy5pby9zZXJ2aWNlYWNjb3VudC9zZXJ2aWNlLWFjY291bnQudWlkIjoiNTMyNGE5ZjktMTUzYi00NDU0LWI1YmYtZDkxMTA3MjkwYTEyIiwic3ViIjoic3lzdGVtOnNlcnZpY2VhY2NvdW50Omt1YmVybmV0ZXMtZGFzaGJvYXJkOmRhc2hib2FyZC1hZG1pbiJ9.A1PWKApgEXOq50qSXeLGqnoecNM88oo9mHucnJayCCRMxHYtJ7e0uAXBbD3MLA1jFlDAU2mTFLIexQyiz0RwUxIgEUN-u-vYmQqyEaAual88uruJpa9PCfLOdePTvFDypoh5h0HJl0Mon7v8b059q2wQ4bUgTycRe7MH2sATpLOQPsKbPOymzx4T3dw1jXykG8HY6lTzP6Uu9kLXziv6cwdvFfQl3MrqJ1gEZ3TGZiXNIenTaRwE-zweBSbK0uK6iS8Vwbc0FB9IIpr-MgkS1ppD-Wb7sSR9Ax7Sg9OFV4RKr1WRB0dmGV44HzicWs7I3_klaI-hI4tOioVZ9x8DYw



# 获取token方法
[root@k8s-master dashboard]# kubectl get secrets  -n kubernetes-dashboard
NAME                              TYPE                                  DATA   AGE
dashboard-admin                   kubernetes.io/service-account-token   3      10m
kubernetes-dashboard-certs        Opaque                                0      18m
kubernetes-dashboard-csrf         Opaque                                1      18m
kubernetes-dashboard-key-holder   Opaque                                2      18m
[root@k8s-master dashboard]# kubectl describe  secrets -n kubernetes-dashboard  dashboard-admin
Name:         dashboard-admin
Namespace:    kubernetes-dashboard
Labels:       
Annotations:  kubernetes.io/service-account.name: dashboard-admin
              kubernetes.io/service-account.uid: 5324a9f9-153b-4454-b5bf-d91107290a12

Type:  kubernetes.io/service-account-token

Data
====
namespace:  20 bytes
token:      eyJhbGciOiJSUzI1NiIsImtpZCI6IjNnaUFDWnByUW8zODNBWjdIS1VPWHJOdkM0RFhGeGxicHlPamR3aXFSWHcifQ.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.A1PWKApgEXOq50qSXeLGqnoecNM88oo9mHucnJayCCRMxHYtJ7e0uAXBbD3MLA1jFlDAU2mTFLIexQyiz0RwUxIgEUN-u-vYmQqyEaAual88uruJpa9PCfLOdePTvFDypoh5h0HJl0Mon7v8b059q2wQ4bUgTycRe7MH2sATpLOQPsKbPOymzx4T3dw1jXykG8HY6lTzP6Uu9kLXziv6cwdvFfQl3MrqJ1gEZ3TGZiXNIenTaRwE-zweBSbK0uK6iS8Vwbc0FB9IIpr-MgkS1ppD-Wb7sSR9Ax7Sg9OFV4RKr1WRB0dmGV44HzicWs7I3_klaI-hI4tOioVZ9x8DYw
ca.crt:     1099 bytes

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    2.6 卸载dashboard

    • kubectl delete -f /opt/k8s/dashboard/

    3、kubesphere的安装

    3.1 安装kubesphere，先要安装openebs

    3.2 添加一个local的存储器，kubephere安装需要用到

    [root@k8s-master kubesphere]# cat default-storage-class.yaml
kind: StorageClass
apiVersion: storage.k8s.io/v1
metadata:
  name: local
  annotations:
    cas.openebs.io/config: |
      - name: StorageType
        value: "hostpath"
      - name: BasePath
        value: "/var/openebs/local/"
    kubectl.kubernetes.io/last-applied-configuration: >
      {"apiVersion":"storage.k8s.io/v1","kind":"StorageClass","metadata":{"annotations":{"cas.openebs.io/config":"-
      name: StorageType\n  value: \"hostpath\"\n- name: BasePath\n  value:
      \"/var/openebs/local/\"\n","openebs.io/cas-type":"local","storageclass.beta.kubernetes.io/is-default-class":"true","storageclass.kubesphere.io/supported-access-modes":"[\"ReadWriteOnce\"]"},"name":"local"},"provisioner":"openebs.io/local","reclaimPolicy":"Delete","volumeBindingMode":"WaitForFirstConsumer"}
    openebs.io/cas-type: local
    storageclass.beta.kubernetes.io/is-default-class: 'true'
    storageclass.kubesphere.io/supported-access-modes: '["ReadWriteOnce"]'
provisioner: openebs.io/local
reclaimPolicy: Delete
volumeBindingMode: WaitForFirstConsumer

[root@k8s-master kubesphere]# kubectl create  -f default-storage-class.yaml
storageclass.storage.k8s.io/local created

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    3.2 部署kubesphere

    • 通过如下命令下载配置文件安装资源
    • kubectl apply -f https://github.com/kubesphere/ks-installer/releases/download/v3.4.1/kubesphere-installer.yaml
    • kubectl apply -f https://github.com/kubesphere/ks-installer/releases/download/v3.4.1/cluster-configuration.yaml
    [root@k8s-master kubesphere]# kubectl apply -f https://github.com/kubesphere/ks-installer/releases/download/v3.4.1/kubesphere-installer.yaml
customresourcedefinition.apiextensions.k8s.io/clusterconfigurations.installer.kubesphere.io created
namespace/kubesphere-system created
serviceaccount/ks-installer created
clusterrole.rbac.authorization.k8s.io/ks-installer created
clusterrolebinding.rbac.authorization.k8s.io/ks-installer created
deployment.apps/ks-installer created

[root@k8s-master kubesphere]# kubectl apply -f https://github.com/kubesphere/ks-installer/releases/download/v3.4.1/cluster-configuration.yaml
clusterconfiguration.installer.kubesphere.io/ks-installer created


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    3.3 检查安装日志

    • kubectl logs -n kubesphere-system $(kubectl get pod -n kubesphere-system -l ‘app in (ks-install, ks-installer)’ -o jsonpath=‘{.items[0].metadata.name}’) -f

    在这里插入图片描述

    3.4 查看端口

    kubectl get svc/ks-console -n kubesphere-system


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    3.5 登录控制台

    • 确保在安全组中打开了端口 30880，并通过 NodePort (IP:30880) 使用默认帐户和密码 (admin/P@88w0rd) 访问 Web 控制台。

    在这里插入图片描述

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  • 原文地址：https://blog.csdn.net/u011709380/article/details/136420053