下載地址：http://download.chinaunix.net/download/0013000/12508.shtml 可以在這裏下載，
[root@localhost ~]# yum -y install cmake gcc gcc-c++ autoconf automake zlib* libxml* \
ncurses ncurses-devel libtool-ltdl-devel* make bison bison-devel libaio
[root@localhost ~]# tar zxvf haproxy-1.4.25.tar.gz
[root@localhost ~]# cd haproxy-1.4.25
[root@localhost haproxy-1.4.25]# 開始編譯安裝
（MAKE 參數請參考文件中的README）
[root@localhost haproxy-1.4.25]# make TARGET=linux26 PREFIX=/usr/local/haproxy
[root@localhost haproxy-1.4.25]# make install PREFIX=/usr/local/haproxy
[root@localhost haproxy-1.4.25]# install -d /usr/local/sbin
[root@localhost haproxy-1.4.25]# install haproxy /usr/local/sbin
[root@localhost haproxy-1.4.25]# install -d /usr/local/share/man/man1
[root@localhost haproxy-1.4.25]# install -m 644 doc/haproxy.1 /usr/local/share/man/man1
[root@localhost haproxy-1.4.25]# install -d /usr/local/doc/haproxy
[root@localhost haproxy-1.4.25]# for x in configuration architecture haproxy-en haproxy-fr; do \
> install -m 644 doc/$x.txt /usr/local/doc/haproxy ; \
> done
[root@localhost haproxy-1.4.25]#安裝完成，
我們檢測 一下是否安裝成功
[root@localhost haproxy-1.4.25]# haproxy -v
HA-Proxy version 1.4.25 2014/03/27
Copyright 2000-2014 Willy Tarreau <[email protected]>配置haproxy.cfg文件
這裏解釋一下，我用的時候 安裝文件夾用 /root/haproxy-1.4.25/examples/haproxy.cfg 這個是自帶的配置文件
[root@localhost examples]# vim haproxy.cfg
# this config needs haproxy-1.1.28 or haproxy-1.2.1
global
log 127.0.0.1 local0
log 127.0.0.1 local1 notice
#log loghost local0 info
maxconn 4096
# chroot /usr/share/haproxy
chroot /usr/local/haproxy
uid 99
gid 99
daemon
#debug
#quiet
defaults
log global
mode http
option httplog
option dontlognull
retries 3
#redispatch
maxconn 2000
contimeout 5000
clitimeout 50000
srvtimeout 50000
#============================這一段是我後面加上去了。 就是WEB代理
listen web_proxy
bind *:80
mode http
option httpchk GET /index.html
server s1 192.168.11.210:80 weight 3 check
server s2 192.168.11.211:80 weight 3 check
#後面的我做的註釋
#listen appli1-rewrite 0.0.0.0:10001
# cookie SERVERID rewrite
# balance roundrobin
# server app1_1 192.168.34.23:8080 cookie app1inst1 check inter 2000 rise 2 fall 5
# server app1_2 192.168.34.32:8080 cookie app1inst2 check inter 2000 rise 2 fall 5
# server app1_3 192.168.34.27:8080 cookie app1inst3 check inter 2000 rise 2 fall 5
# server app1_4 192.168.34.42:8080 cookie app1inst4 check inter 2000 rise 2 fall 5
#
#listen appli2-insert 0.0.0.0:10002
# option httpchk
# balance roundrobin
# cookie SERVERID insert indirect nocache
# server inst1 192.168.114.56:80 cookie server01 check inter 2000 fall 3
# server inst2 192.168.114.56:81 cookie server02 check inter 2000 fall 3
# capture cookie vgnvisitor= len 32
#
# option httpclose # disable keep-alive
# rspidel ^Set-cookie:\ IP= # do not let this cookie tell our internal IP address
#
#listen appli3-relais 0.0.0.0:10003
# dispatch 192.168.135.17:80
#
#listen appli4-backup 0.0.0.0:10004
# option httpchk /index.html
# option persist
# balance roundrobin
# server inst1 192.168.114.56:80 check inter 2000 fall 3
# server inst2 192.168.114.56:81 check inter 2000 fall 3 backup
#
#listen ssl-relay 0.0.0.0:8443
# option ssl-hello-chk
# balance source
# server inst1 192.168.110.56:443 check inter 2000 fall 3
# server inst2 192.168.110.57:443 check inter 2000 fall 3
# server back1 192.168.120.58:443 backup
#listen appli5-backup 0.0.0.0:10005
# option httpchk *
# balance roundrobin
# cookie SERVERID insert indirect nocache
# server inst1 192.168.114.56:80 cookie server01 check inter 2000 fall 3
# server inst2 192.168.114.56:81 cookie server02 check inter 2000 fall 3
# server inst3 192.168.114.57:80 backup check inter 2000 fall 3
# capture cookie ASPSESSION len 32
# srvtimeout 20000
# option httpclose # disable keep-alive
# option checkcache # block response if set-cookie & cacheable
# rspidel ^Set-cookie:\ IP= # do not let this cookie tell our internal IP address
# errorloc 502 http://192.168.114.58/error502.html
# errorfile 503 /etc/haproxy/errors/503.http啓動服務
[root@localhost examples]# haproxy -f /root/haproxy-1.4.25/examples/haproxy.cfg
[WARNING] 316/220055 (2376) : parsing [/root/haproxy-1.4.25/examples/haproxy.cfg:22]: keyword 'redispatch' is deprecated, please use 'option redispatch' instead.
[ALERT] 316/220055 (2376) : [haproxy.main()] Cannot chroot(/usr/local/sbin/haproxy).
出現的報錯信息，下面我們來解決問題。因爲上面配置文件是我改後的，應該沒有什麼問題。
[ALERT] 316/220055 (2376) : [haproxy.main()] Cannot chroot(/usr/local/sbin/haproxy).
是配置文件chroot的目錄不對，根據我的文檔安裝改成 chroot /urs/local/haproxy
就可以解決了 執行 mkdir /usr/share/haproxy
[WARNING] 316/220055 (2376) : parsing [/root/haproxy-1.4.25/examples/haproxy.cfg:22]: keyword 'redispatch' is deprecated, please use 'option redispatch' instead.
這個報錯信息是配置文件22行的問題，
我是做了註釋掉就可以起動服務了。 註釋到相對應的錯誤行
再次起動服務：[root@localhost examples]# haproxy -f /root/haproxy-1.4.25/examples/haproxy.cfg
[root@localhost examples]#沒有任何提示，那我們檢測一下是否啓動成功
看一下進程信息
[root@localhost examples]# ps -ef |grep haproxy
nobody 3826 1 0 22:38 ? 00:00:00 haproxy -f /root/haproxy-1.4.25/examples/haproxy.cfg
root 3837 1260 0 22:38 pts/0 00:00:00 grep haproxy進程已經在
看一下端口信息
下圖就成功了80端口是我們自定義的服務。最後加的配置文件
[root@localhost examples]# netstat -anp |grep haproxy
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 3826/haproxy
udp 0 0 0.0.0.0:43549 0.0.0.0:* 3826/haproxy [root@localhost examples]# cd /etc/
[root@localhost etc]#
複製haproxy配置文件到/etc/目錄下面
[root@localhost etc]# cp /root/haproxy-1.4.25/examples/haproxy.cfg haproxy.cfg
我們再一次查看進程 kill掉。 在用/etc/haproxy.cfg的配置文件啓動看看
[root@localhost etc]# ps -ef | grep haproxy
nobody 3826 1 0 22:38 ? 00:00:00 haproxy -f /root/haproxy-1.4.25/examples/haproxy.cfg
root 3901 1260 0 22:40 pts/0 00:00:00 grep haproxy
[root@localhost etc]# kill 3826
[root@localhost etc]# ps -ef | grep haproxy
root 3928 1260 0 22:41 pts/0 00:00:00 grep haproxy
已經kill掉進程，進程已經沒有在運行了， 我們現在用/etc/haproxy.cfg 來運行服務
[root@localhost etc]# haproxy -f /etc/haproxy.cfg
[root@localhost etc]# ps -ef |grep haproxy.cfg
nobody 3959 1 0 22:42 ? 00:00:00 haproxy -f /etc/haproxy.cfg
root 3965 1260 0 22:43 pts/0 00:00:00 grep haproxy.cfg我們已經看到運行成功
設置以服務形式啓動
目錄切換到/etc/init.d
[root@localhost etc]# cd /etc/init.d/
[root@localhost init.d]# vi haproxy
#!/bin/bash
#
# haproxy
#
# chkconfig: 35 85 15
# description: HAProxy is a free, very fast and reliable solution \
# offering high availability, load balancing, and \
# proxying for TCP and HTTP-based applications
# processname: haproxy
# config: /etc/haproxy.cfg
# pidfile: /var/run/haproxy.pid
# Source function library.
. /etc/rc.d/init.d/functions
# Source networking configuration.
. /etc/sysconfig/network
# Check that networking is up.
[ "$NETWORKING" = "no" ] && exit 0
config="/etc/haproxy.cfg"
exec="/usr/local/haproxy/sbin/haproxy"
prog=$(basename $exec)
[ -e /etc/sysconfig/$prog ] && . /etc/sysconfig/$prog
lockfile=/var/lock/subsys/haproxy
check() {
$exec -c -V -f $config
}
start() {
$exec -c -q -f $config
if [ $? -ne 0 ]; then
echo "Errors in configuration file, check with $prog check."
return 1
fi
echo -n $"Starting $prog: "
# start it up here, usually something like "daemon $exec"
daemon $exec -D -f $config -p /var/run/$prog.pid
retval=$?
echo
[ $retval -eq 0 ] && touch $lockfile
return $retval
}
stop() {
echo -n $"Stopping $prog: "
# stop it here, often "killproc $prog"
killproc $prog
retval=$?
echo
[ $retval -eq 0 ] && rm -f $lockfile
return $retval
}
restart() {
$exec -c -q -f $config
if [ $? -ne 0 ]; then
echo "Errors in configuration file, check with $prog check."
return 1
fi
stop
start
}
reload() {
$exec -c -q -f $config
if [ $? -ne 0 ]; then
echo "Errors in configuration file, check with $prog check."
return 1
fi
echo -n $"Reloading $prog: "
$exec -D -f $config -p /var/run/$prog.pid -sf $(cat /var/run/$prog.pid)
retval=$?
echo
return $retval
}
force_reload() {
restart
}
fdr_status() {
status $prog
}
case "$1" in
start|stop|restart|reload)
$1
;;
force-reload)
force_reload
;;
checkconfig)
check
;;
status)
fdr_status
;;
condrestart|try-restart)
[ ! -f $lockfile ] || restart
;;
*)
echo $"Usage: $0 {start|stop|status|checkconfig|restart|try-restart|reload|force-reload}"
exit 2
esac
[root@localhost init.d]# service haproxy restart
env: /etc/init.d/haproxy: Permission denied
這個提示。大概是權限問題。我們下面加上執行權限
[root@localhost init.d]# ll haproxy
-rw-r--r--. 1 root root 2588 Nov 13 23:02 haproxy
[root@localhost init.d]# chmod -R 655 haproxy
[root@localhost init.d]# ll haproxy
-rw-r-xr-x. 1 root root 2588 Nov 13 23:02 haproxy
選 看一下進程是否存在，不存在我們重起haproxy服務
[root@localhost init.d]# ps -ef | grep haproxy
root 7409 1260 0 23:56 pts/0 00:00:00 grep haproxy
[root@localhost init.d]# service haproxy restart
Stopping haproxy: [FAILED]
Starting haproxy: [ OK ]
[root@localhost init.d]# ps -ef | grep haproxy
nobody 7444 1 0 23:56 ? 00:00:00 /usr/local/haproxy/sbin/haproxy -D -f /etc/haproxy.cfg -p /var/run/haproxy.pid
root 7449 1260 0 23:56 pts/0 00:00:00 grep haproxy
[root@localhost init.d]#
配置上面就完成了