k8s:prometheus页面添加鉴权-Go服务器开发

要在k8s:prometheus页面添加鉴权，需要进行以下步骤：

创建一个Kubernetes Secret对象，用于存储用户名和密码。

$ kubectl create secret generic prometheus-basic-auth --from-literal=username=myuser --from-literal=password=mypass

创建一个ConfigMap对象，用于存储nginx配置文件。

$ kubectl create configmap prometheus-nginx-conf --from-file=nginx.conf

创建一个Deployment对象，用于运行nginx容器，并挂载上面创建的Secret和ConfigMap。

apiVersion: apps/v1
kind: Deployment
metadata:
  name: prometheus-nginx
spec:
  replicas: 1
  selector:
    matchLabels:
      app: prometheus-nginx
  template:
    metadata:
      labels:
        app: prometheus-nginx
    spec:
      containers:
      - name: nginx
        image: nginx
        ports:
        - containerPort: 80
        volumeMounts:
        - name: nginx-conf-volume
          mountPath: /etc/nginx/conf.d/
        - name: basic-auth-volume
          mountPath: /etc/nginx/.htpasswd/
          subPath: .htpasswd 
      volumes:
      - name: nginx-conf-volume
        configMap:
          name: prometheus-nginx-conf 
          items:
            - key : nginx.conf 
              path : default.conf 
      - name : basic-auth-volume 
        secret :
          secretName : prometheus-basic-auth

创建一个Service对象，将Deployment暴露为NodePort类型的Service。

apiVersion : v1 
kind : Service 
metadata :
  name : prometheus-service  
spec :
  type : NodePort 
  selector :
    app : prometheus-nginx 
  ports :
  - name : http 
    port : 80 
    targetPort : 80

配置Ingress对象，将请求转发到Service。

apiVersion: networking.k8s.io/v1beta1
kind: Ingress
metadata:
  name: prometheus-ingress
spec:
  rules:
  - host: prometheus.example.com # Replace with your domain name
    http:
      paths:
      - backend:
          serviceName: prometheus-service
          servicePort: http
        path: /prometheus/

在ConfigMap中创建nginx.conf文件，配置鉴权相关的内容。

server {
    listen       80;
    server_name  localhost;

    location /prometheus/ {
        auth_basic "Restricted";
        auth_basic_user_file /etc/nginx/.htpasswd/default;
        proxy_pass http://prometheus-service/;
    }
}

这样就完成了在k8s:prometheus页面添加鉴权的步骤。用户访问/prometheus路径时会弹出认证框，输入正确的用户名和密码后才能访问Prometheus页面。