[开发工具]K8S 1.18.3 安装dashboard2.0

参考
https://blog.csdn.net/l1028386804/article/details/105904557/

创建dashboard证书

(umask 077;openssl genrsa -out dashboard.wuxingge.com.key 2048)
openssl req -new -key dashboard.wuxingge.com.key -out dashboard.wuxingge.com.csr -subj "/CN=dashboard.wuxingge.com/C=CN/ST=BJ/L=Beijing/O=WuxingGe/OU=ops"
openssl x509 -req -in dashboard.wuxingge.com.csr -CA ca.crt -CAkey ca.key -CAcreateserial -out dashboard.wuxingge.com.crt -days 36500

证书上传到proxy配置

dashboard.wuxingge.com.conf

server {
    listen       80;
    server_name  dashboard.wuxingge.com;
    rewrite ^(.*)$ https://${server_name}$1 permanent;
}
server {
    listen       443 ssl http2;
    server_name  dashboard.wuxingge.com;

    ssl_certificate "certs/dashboard.wuxingge.com.crt";
    ssl_certificate_key "certs/dashboard.wuxingge.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;
	proxy_set_header Host       $http_host;
        proxy_set_header x-forwarded-for $proxy_add_x_forwarded_for;
    }
}

default.conf

upstream default_backend {
    server 10.10.111.159:80;
    server 10.10.110.195:80;
    server 10.10.111.170:80;
}
server {
    listen 80 default_server;
    location / {
        proxy_set_header Host       $host;
        proxy_set_header x-forwarded-for $proxy_add_x_forwarded_for;
        proxy_pass http://default_backend;
    }
}

创建secret

kubectl create namespace kubernetes-dashboard
kubectl create secret generic kubernetes-dashboard-certs --from-file=dashboard.wuxingge.com.key --from-file=dashboard.wuxingge.com.crt -n kubernetes-dashboard

下载recommended.yaml文件

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

修改recommended.yaml(注释以下内容)

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

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
  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:
      containers:
        - name: kubernetes-dashboard
          image: harbor.wuxingge.com/sit/dashboard:v2.0.0
          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:
        "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: harbor.wuxingge.com/sit/metrics-scraper:v1.0.4
          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: {}

安装dashboard

kubectl apply -f recommended.yaml

创建ingress

vim ingress.yaml

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: kubernetes-dashboard
  namespace: kubernetes-dashboard
  annotations:
    kubernetes.io/ingress.class: traefik
spec:
  rules:
  - host: dashboard.wuxingge.com
    http:
      paths:
      - backend:
          serviceName: kubernetes-dashboard
          servicePort: 443

kubectl apply -f ingress.yaml

创建dashboard管理员

vim dashboard-admin.yaml

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

kubectl apply -f dashboard-admin.yaml

为用户分配权限

vim dashboard-admin-bind-cluster-role.yaml

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: dashboard-admin-bind-cluster-role
  labels:
    k8s-app: kubernetes-dashboard
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: cluster-admin
subjects:
- kind: ServiceAccount
  name: dashboard-admin
  namespace: kubernetes-dashboard

kubectl apply -f dashboard-admin-bind-cluster-role.yaml

查看用户Token

kubectl get secrets -n kubernetes-dashboard |grep dashboard-admin
dashboard-admin-token-g84tj        kubernetes.io/service-account-token   3      58m

kubectl describe secrets -n kubernetes-dashboard dashboard-admin-token-g84tj
Name:         dashboard-admin-token-g84tj
Namespace:    kubernetes-dashboard
Labels:       <none>
Annotations:  kubernetes.io/service-account.name: dashboard-admin
              kubernetes.io/service-account.uid: a60ddf78-dfcb-442a-8459-01b81b5a1b29

Type:  kubernetes.io/service-account-token

Data
====
ca.crt:     1029 bytes
namespace:  20 bytes
token:      eyJhbGciOiJSUzI1NiIsImtpZCI6InVaNUZTWUhON0FiN2lqeGlxR3JOQWQ3LWprZHA5QVFDMWFLYzRUeThDWUEifQ.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.vyxCV2pHxMCavlAvgTEhcC70Y78NF-GMC-H8Cj2DPTN9mRRjYVaXKIK1E1LMa0dntVzT3iejBFni9rU43NQedsDC61LAnEIv092UWornypzljhOx4KeE2FbcVL7M4ppxYajQucleWBJd7tvUUHRxyJHLrEHqR_OKWM-SUhLxTy7_MFeuFXjiFUdionxR8BRcRQ7b6Hwe5nUoJdnHfowK-3AJYfR42JFD9M5yLxwqQEa9tVUhVloabkC6jiDleSb0qe5qEG2oz8BhRNMABPsJensk4YhNMpZbf4N-ln0daevPMawr2RAMbhJVJDNdiO7ykdGQ3WRySkRVJPDkF71zYA

hosts解析（解析到代理）

10.10.110.248 dashboard.wuxingge.com

访问dashboard

Kubeconfig文件认证

生成Kubeconfig文件

设置集群

kubectl config set-cluster kubernetes --certificate-authority=/etc/kubernetes/pki/ca.crt --server=https://10.10.110.248:6443 --embed-certs=true --kubeconfig=/root/dashboard-admin.conf

设置用户

DEF_NS_ADMIN_TOKEN=$(kubectl get secrets -n kubernetes-dashboard dashboard-admin-token-g84tj -o jsonpath={.data.token} |base64 -d)
kubectl config set-credentials dashboard-admin --token=$DEF_NS_ADMIN_TOKEN --kubeconfig=/root/dashboard-admin.conf

设置context

kubectl config set-context dashboard-admin@kubernetes --cluster=kubernetes --user=dashboard-admin --kubeconfig=/root/dashboard-admin.conf

使用context

kubectl config use-context dashboard-admin@kubernetes --kubeconfig=/root/dashboard-admin.conf

下载dashboard-admin.conf到本地

Kubeconfig文件认证