[root@A local]# yum install -y gcc
[root@A local]# tar zxvf haproxy-1.6.9.tar.gz
[root@A local]# cd haproxy-1.6.9
[root@A local]# make  TARGET=linux3100 CPU=x86_64  PREFIX=/usr/local/haprpxy  #编译  uname -r #查看系统内核版本号
[root@A local]# make install PREFIX=/usr/local/haproxy  #安装#数说明：
#TARGET=linux3100
#使用uname -r查看内核，如：2.6.18-371.el5，此时该参数就为linux26
#kernel 大于2.6.28的用：TARGET=linux2628
#CPU=x86_64   #使用uname -r查看系统信息，如x86_64 x86_64 x86_64 GNU/Linux，此时该参数就为x86_64
#PREFIX=/usr/local/haprpxy   #/usr/local/haprpxy为haprpxy安装路径

[root@bogon ~]# systemctl stop firewalld.service    #停止防火墙
[root@bogon ~]# systemctl disable firewalld.service#开机不启动防火墙
Removed symlink /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service.
Removed symlink /etc/systemd/system/basic.target.wants/firewalld.service.
[root@bogon ~]# yum install -y haproxy   #安装

#---------------------------------------------------------------------
# Global settings
#---------------------------------------------------------------------
globallog    127.0.0.1 local2          ###[err warning info debug] chroot  /usr/local/haproxypidfile  /var/run/haproxy.pid   ###haproxy的pid存放路径,启动进程的用户必须有权限访问此文件 maxconn  4000                   ###最大连接数，默认4000user   haproxygroup   haproxydaemon                          ###创建1个进程进入deamon模式运行。此参数要求将运行模式设置为"daemon"#---------------------------------------------------------------------
# common defaults that all the 'listen' and 'backend' sections will
# use if not designated in their block
#---------------------------------------------------------------------
defaultsmode   http             ###默认的模式mode { tcp|http|health }，tcp是4层，http是7层，health只会返回OKlog    global           ###采用全局定义的日志option  dontlognull     ###不记录健康检查的日志信息option  httpclose       ###每次请求完毕后主动关闭http通道 option  httplog         ###日志类别http日志格式 option  forwardfor      ###如果后端服务器需要获得客户端真实ip需要配置的参数，可以从Http Header中获得客户端ip  option  redispatch      ###serverId对应的服务器挂掉后,强制定向到其他健康的服务器timeout connect 10000   #default 10 second timeout if a backend is not foundtimeout client 300000   ###客户端连接超时timeout server 300000   ###服务器连接超时maxconn     60000       ###最大连接数retries     3           ###3次连接失败就认为服务不可用，也可以通过后面设置
####################################################################
listen statsbind 0.0.0.0:1080           #监听端口  stats refresh 30s           #统计页面自动刷新时间  stats uri /stats            #统计页面url  stats realm Haproxy Manager #统计页面密码框上提示文本  stats auth admin:admin      #统计页面用户名和密码设置  #stats hide-version         #隐藏统计页面上HAProxy的版本信息
#---------------------------------------------------------------------
# main frontend which proxys to the backends
#---------------------------------------------------------------------
frontend mainbind 0.0.0.0:80acl url_static path_beg    -i /static /images /javascript /stylesheetsacl url_static path_end    -i .jpg .gif .png .css .jsuse_backend static if url_static     ###满足策略要求，则响应策略定义的backend页面default_backend   dynamic            ###不满足则响应backend的默认页面#---------------------------------------------------------------------
# static backend for serving up images, stylesheets and such
#---------------------------------------------------------------------backend staticbalance     roundrobin                 ###负载均衡模式轮询server      static 127.0.0.1:80 check ###后端服务器定义backend dynamicbalance    roundrobinserver         websrv1 10.252.97.106:80 check maxconn 2000server         websrv2 10.117.8.20:80 check maxconn 2000#---------------------------------------------------------------------
# round robin balancing between the various backends
#---------------------------------------------------------------------

#errorloc  503  http://www.osyunwei.com/404.html

errorfile 403 /etc/haproxy/errorfiles/403.http

errorfile 500 /etc/haproxy/errorfiles/500.http

errorfile 502 /etc/haproxy/errorfiles/502.http

errorfile 503 /etc/haproxy/errorfiles/503.http

errorfile 504 /etc/haproxy/errorfiles/504.http