haproxy配置实现动静分离

上一篇文章介绍了haproxy的简单安装以及最小化启动.实际生产环境中haproxy是没有这么简单的.下面贴上我们公司根据request_url来实现动静分离.

global
maxconn 10240
user haproxy
group haproxy
daemon
nbproc 4
pidfile /var/run/haproxy.pid
defaults
log global
option dontlognull   #不记录空连接
option redispatch
timeout connect 10000
timeout client 300000
timeout server 300000
maxconn 60000
retries 3
frontend main *:80
mode http
option httpclose
option httplog
option forwardfor
acl host_dpool hdr_beg(host) -i cache static attach1
acl host_dpool hdr_bet(host) -i yiqisoo.com
use_backend dpool if host_dpool
acl host_imgcdn hdr_end(host) -i  imgcdn.house.sina.com.cn
use_backend imgcdn if host_imgcdn
acl host_bbs hdr_end(host) -i bbs.house.sina.com.cn bbs0.house.sina.com.cn
use_backend bbs if host_bbs
acl host_jiajustatic hdr_end(host) -i static.jiaju.com
use_backend jiajustatic if host_jiajustatic
default_backend spool
frontend status
bind *:81
default_backend  status
backend status
mode http
stats enable
stats hide-version
stats uri /haproxy-stats
stats realm Haproxy\ statistics
stats auth evil:redhat
backend dpool
mode http
balance uri len 128 depth 8 根据uri 进行hash 因为后端的real_server为squid.
server p-01 1.1.1.1:80 maxconn 2000 check inter 2000 rise 3 fall 3
server p-02 2.2.2.2:80 maxconn 2000 check inter 2000 rise 3 fall 3
server p-03 3.3.3.3:80 maxconn 2000 check inter 2000 rise 3
fall 3
##check 接受服务器健康检测
##inter 两次健康检测所相隔的时间 默认为毫秒
##rise  指多少次检测后认为服务为健康状态
##fall  指多少次检测后认为服务为不可用
backend imgcdn
mode http
ba
server imgcdn-01 11.12.13.14:80 weight 1 check inter 10000
backend bbs
mode http
balance roundrobin
server b-01 172.16.1.1:80 weight 1 check inter 10000
server b-02 172.16.1.2:80 weight 1 check inter 10000
server b-03 172.16.1.3:80 weight 1 check inter 10000
backend jiajustatic
mode http
balance roundrobin
server jiajustatic-01 192.168.1.1:80 weight 1 check inter 10000

其实很简单,只要通过acl设置.然后再if判断是否为真,则使用哪个backend.
经常用到的acl类型有. hdr_beg(host) -i  hdr_end(host) -i path_beg path_end hdr(Referer)
default_backend 参数意为:以上所有规则都不匹配,则是用默认backend

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