257 Nginx的负载均衡，如何让某段时间访问A机器

 

首先Nginx获取到时间

选取ngx_time_var模块

安装：

./configure –add-module=/path/to/ngx_http_time_var_module

echo 'year  :$tm_year'; //year  :2012
echo 'month :$tm_month'; //month :01
echo 'day   :$tm_day';  //day   :08
echo 'hour  :$tm_hour';  //hour  :03
echo 'minute:$tm_minute';  //minute:54
echo 'second:$tm_second';  //second:21
echo ''; 
echo $tm_err_log_time;  //2012/01/08 03:54:21
echo $tm_http_time;  //Sat, 07 Jan 2012 19:54:21 GMT
echo $tm_http_log_time;  //08/Jan/2012:03:54:21 +0800
echo $tm_http_log_iso8601;  //2012-01-08T03:54:21+08:00
echo ''; 
echo $tm_tomsec;  //1325966061.521
echo $tm_tosec;  1325966061

server {
    server_name www.demo.com;
    listen 80;

    location / {
        # 配置默认ip
        set $default_ip 127.0.0.1;

        # 配置默认port
        set $default_port 8080;

        # 如果当前时间是3-5点则指定ip为10.1.1.1
        if ($tm_month>=3 && $tm_month <= 5) {
            set $default_ip 10.1.1.1
        }

        # 如果url中包含ip=x
        if ($request_uri ~* ip=(.+?)(&|$)) {
            set $default_ip $1;
        }

        # 如果url中包含port=1
        if ($request_uri ~* port=(\d+?)(&|$)) {
            set $default_port $1;
        }

        # 配置代理参数
        proxy_set_header Connection "";
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $http_host;
        proxy_set_header X-NginX-Proxy true;

        # 代理
        proxy_pass http://$default_ip:$default_port;
    }
}

转载：https://blog.csdn.net/jasonware/article/details/75044944