prometheus设置使用密码nginx反向代理访问

注意：
1.设置访问密码的方式
2.ngixn反向代理的配置

# 安装 Apache工具包
apt install apache2-utils
htpasswd -bc /etc/nginx/.prom_htpasswd admin admin
# nginx conf
cat > /etc/nginx/conf.d/prom.conf <<EOF
server {
    listen       80;
    server_name  prom.k8stech.net;
    auth_basic "Please input password";
    auth_basic_user_file /etc/nginx/.prom_htpasswd;
    location / {
            try_files $uri @prom;
    }
    location @prom {
            internal;
            proxy_pass http://localhost:9090;
    }
}
EOF