标签：match backend format 服务 pre erer ack pid max
nginx根据cookie分流
众所周知，nginx可以根据url path进行分流，殊不知对于cookie分流也很强大，同时这也是我上篇提到的小流量实验的基础。
二话不说，先看需求，两台服务器分别定义为
apache001：192.168.1.1:8080
apache002：192.168.1.2:8080
默认服务器为：
default：192.168.1.0:8080
前端nginx服务器监听端口8080，需要根据cookie转发，查询的cookie的键（key）为abcdexpid，如果该cookie值（value）以1结尾则转发到apache001，以2结尾则转发到apache002。
方案1：
用map，nginx.conf配置如下：
map $COOKIE_abcdexpid $group { ~*1$ apache001; ~*2$ apache002; default root; } upstream apache001 { server 192.168.1.1:8080 weight=1 max_fails=1 fail_timeout=30s; } upstream apache002 { server 192.168.1.2:8080 weight=1 max_fails=1 fail_timeout=30s; } upstream root { server 192.168.1.0:8080 weight=1 max_fails=1 fail_timeout=30s; } server { listen 8080; server_name neoremind.net; log_format main ‘$remote_addr - $remote_user [$time_local] "$request" ‘ ‘$status $body_bytes_sent "$http_referer" "group=$group"‘ ‘"$http_user_agent" $gzip_ratio $request_time "$http_x_forwarded_for"‘; access_log logs/access_log main; error_log logs/error_log; location / { proxy_pass http://$group; proxy_set_header X-Forwarded-For $remote_addr; } }
方案2：
利用set和if…else… ，nginx.conf配置如下：
upstream apache001 { server 192.168.1.1:8080 weight=1 max_fails=1 fail_timeout=30s; } upstream apache002 { server 192.168.1.2:8080 weight=1 max_fails=1 fail_timeout=30s; } upstream root { server 192.168.1.0:8080 weight=1 max_fails=1 fail_timeout=30s; } server { listen 8080; server_name beidoutest.baidu.com; #match cookie set $group "root"; if ($http_cookie ~* "abcdexpid=([^;]+)(1$)"){ set $group apache001; } if ($http_cookie ~* "abcdexpid=([^;]+)(2$)"){ set $group apache002; } log_format main ‘$remote_addr - $remote_user [$time_local] "$request" ‘ ‘$status $body_bytes_sent "$http_referer" "group=$group"‘ ‘"$http_user_agent" $gzip_ratio $request_time "$http_x_forwarded_for"‘; access_log logs/access_log main; error_log logs/error_log; location / { proxy_pass http://$group; proxy_set_header X-Forwarded-For $remote_addr; } } map $COOKIE_id $group { 700003508 admin; ~*3$ admin; default user; } upstream backend_user { server 10.3.24.11:8080; } upstream backend_admin { server 10.3.25.21:8081; } server { listen 80; server_name photo.domain.com; location / { proxy_pass http://backend_$group; } }
首先，是在nginx里面配置一个映射，$COOKIE_id可以解析出cookie里面的id字段，$group是一个变量，{}里面是映射规则，
这样，如果一个id为700003508的人来访问，$group就等于admin。
然后在server里面使用就会代理到http://backend_admin上
标签：match backend format 服务 pre erer ack pid max
原文地址：https://www.cnblogs.com/cangqinglang/p/12031055.html
