基于HAproxy的web动静分离及输出状态检测页面
一、简介
HAProxy提供高可用性、负载均衡以及基于TCP和HTTP应用的代 理,支持虚拟主机,它是免费、快速并且可靠的一种解决方案。HAProxy特别适用于那些负载特大的web站点,这些站点通常又需要会话保持或七层处理。HAProxy运行在当前的硬件上,完全可以支持数以万计的并发连接。并且它的运行模式使得它可以很简单安全的整合进您当前的架构中, 同时可以保护你的web服务器不被暴露到网络上。
HAProxy是免费、极速且可靠的用于为TCP和基于HTTP应用程序提供高可用、负载均衡和代理服务的解决方案,尤其适用于高负载且需要持久连接或7层处理机制的web站点。
二、安装配置
1.拓扑图
说明:1.由于测试环境虚拟机有限,此处将静态页面和图片放在了一台机器上
2.由于测试环境虚拟机有限,此处动态页面和静态页面各提供一台机器,不考虑单点故障
3.用户看到的服务器为HAproxy对外提供的ip地址,看不到后面的各服务器组
4.此处不涉及php页面与数据库的交互内容
2.ip地址规划
功用 | ip地址 | 安装软件 | 操作系统 |
反向代理服务器 | 192.168.1.201 | Haproxy | centos6.5 |
静态页面服务器 | 192.168.1.202 | httpd | centos6.5 |
动态页面服务器 | 192.168.1.203 | httpd、php | centos6.5 |
3.安装配置HAproxy
①、安装
HAproxy可以通过yum源安装也可以通过源码编译安装,经查看得知yum源中提供的1.4.24版本,而官方提供的为1.4.25版本,所有本次我们通过yum来进行安装
[root@node1 ~]# yum install haproxy -y
②、启动配置文件选项
[root@node1 ~]# vi /etc/rsyslog.conf 启用一下两行 $ModLoad imudp $UDPServerRun 514 添加以下一行 local2.* /var/log/haproxy.log
将rsyslog日志文件系统重启
③、配置动静分离
#--------------------------------------------------------------------- # 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/haproxy pidfile /var/run/haproxy.pid maxconn 4000 user haproxy group haproxy daemon # turn on stats unix socket stats socket /var/lib/haproxy/stats #--------------------------------------------------------------------- # common defaults that all the ‘listen‘ and ‘backend‘ sections will # use if not designated in their block #--------------------------------------------------------------------- defaults mode http log global option httplog option dontlognull option http-server-close option forwardfor except 127.0.0.0/8 option redispatch retries 3 timeout http-request 10s timeout queue 1m timeout connect 10s timeout client 1m timeout server 1m timeout http-keep-alive 10s timeout check 10s maxconn 3000 #--------------------------------------------------------------------- # main frontend which proxys to the backends #--------------------------------------------------------------------- frontend main *:80 acl url_static path_beg -i /static /images /javascript /stylesheets acl url_static path_end -i .jpg .gif .png .css .js .html acl host_static hdr_beg(host) -i img. video. download. ftp. imgs. use_backend static if url_static default_backend app #--------------------------------------------------------------------- # static backend for serving up images, stylesheets and such #--------------------------------------------------------------------- backend static balance roundrobin server static 192.168.1.202:80 check maxconn 2000 #--------------------------------------------------------------------- # round robin balancing between the various backends #--------------------------------------------------------------------- backend app balance roundrobin server app1 192.168.1.203:80 check maxconn 200
④、准备静态页面与动态页面
静态页面 [root@node2 ~]# vi /var/www/html/index.html hello,wangfeng7399
动态页
[root@node3 ~]# yum install -y php httpd [root@node3 html]# vi index.php <?php phpinfo(); ?> ~
⑤、测试
⑥、启动状态输出页面,在配置文件添加如下行
listen stats mode http bind *:1090 stats enable stats hide-version stats uri /hadmin?stats stats realm Haproxy\ Statistics stats auth admin:admin stats admin if TRUE
重新载入服务
大功告成 ,由于本人水平有限,可能有错误,请各位大牛匹配指正
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