Centos 7 安装 Haproxy

 

【环境】

Centos 7.2

Web1：192.168.136.170

web2：192.168.136.166

Haproxy：192.168.136.173

 

【web服务器1、2】

安装Nginx（可参考YUM快速搭建LNMP）两台Web服务器都需要安装Nginx

为了方便区分web服务器，我们编辑下首页

web1： 

echo 'This is web 1' > /usr/share/nginx/html/index.htmlsystemctl restart nginx

web2：

echo 'This is web 1' > /usr/share/nginx/html/index.htmlsystemctl restart nginx

 

【Haproxy服务器】

yum -y install haproxy

编辑haproxy配置文件

vim /etc/haproxy/haproxy.cfg

（下列红色的#部分，是需要注释的，最下方的是web服务器的地址，如有多个节点，就继续添加）

#--------------------------------------------------------------------- # Example configuration for a possible web application. See the # full configuration options online. # # http://haproxy.1wt.eu/download/1.4/doc/configuration.txt # #---------------------------------------------------------------------#--------------------------------------------------------------------- # Global settings #--------------------------------------------------------------------- global# to have these messages end up in /var/log/haproxy.log you will# need to:## 1) configure syslog to accept network log events. This is done# by adding the '-r' option to the SYSLOGD_OPTIONS in# /etc/sysconfig/syslog## 2) configure local2 events to go to the /var/log/haproxy.log# file. A line like the following can be added to# /etc/sysconfig/syslog## local2.* /var/log/haproxy.log#log 127.0.0.1 local2# chroot /var/lib/haproxypidfile /var/run/haproxy.pidmaxconn 4000user haproxygroup haproxydaemon# turn on stats unix socketstats socket /var/lib/haproxy/stats#--------------------------------------------------------------------- # common defaults that all the 'listen' and 'backend' sections will # use if not designated in their block #--------------------------------------------------------------------- defaultsmode httplog globaloption httplogoption dontlognulloption http-server-closeoption forwardfor except 127.0.0.0/8 # option redispatchretries 3timeout http-request 10stimeout queue 1mtimeout connect 10stimeout client 1mtimeout server 1mtimeout http-keep-alive 10stimeout check 10smaxconn 3000#--------------------------------------------------------------------- # main frontend which proxys to the backends #--------------------------------------------------------------------- frontend main *:5000acl url_static path_beg -i /static /images /javascript /stylesheetsacl url_static path_end -i .jpg .gif .png .css .jsuse_backend static if url_staticdefault_backend app#--------------------------------------------------------------------- # static backend for serving up images, stylesheets and such #--------------------------------------------------------------------- backend staticbalance roundrobinserver static 127.0.0.1:4331 check#--------------------------------------------------------------------- # round robin balancing between the various backends #--------------------------------------------------------------------- backend appbalance roundrobinserver app1 127.0.0.1:5001 checkserver app2 127.0.0.1:5002 checkserver app3 127.0.0.1:5003 checkserver app4 127.0.0.1:5004 check listen webcluster 0.0.0.0:80option httpchk GET /index.htmloption persistbalance roundrobin server inst1 192.168.136.170 check inter 2000 fall 3server inst2 192.168.136.166 check inter 2000 fall 3

然后访问haproxy地址，查看是否会对两台web服务器进行轮询访问。

 

转载于:https://www.cnblogs.com/willamwang/p/11378323.html

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