HAproxy编译安装
https://github.com/haproxy/haproxy已成功安装HAproxy 1.7.9
yum -y install openssl-devel zlib-devel
tar -zxvf haproxy-1.7.9.tar.gz
cd haproxy-1.7.9
make TARGET=linux2628 PREFIX=/usr/local/haprpxy
Linux >= 2.6.28 with SSL and ZLIB support
make TARGET=linux2628 USE_PCRE=1 USE_OPENSSL=1 USE_ZLIB=1 PREFIX=/usr/local/haprpxy;
make install PREFIX=/usr/local/haproxy
TARGET则根据当前操作系统内核版本指定
[*] - linux22 for Linux 2.2
[*] - linux24 for Linux 2.4 and above (default)
[*] - linux24e for Linux 2.4 with support for a working epoll (> 0.21)
[*] - linux26 for Linux 2.6 and above
[*] - linux2628 for Linux 2.6.28, 3.x, and above (enables splice and tproxy)
可以把 /usr/local/haproxy/sbin 添加到系统环境变量 /etc/profile
启动脚本：
cp path/examples/haproxy.init /etc/init.d/haproxy
#######
#!/bin/sh
#
# haproxy
#
# chkconfig: - 85 15
# description:HAProxy is a free, very fast and reliable solution \
# offering high availability, load balancing, and \
# proxying for TCP andHTTP-based applications
# processname: haproxy
# config: /etc/haproxy/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.
[ "$NETWORKING" = "no" ] && exit 0
exec="/usr/local/haproxy/sbin/haproxy"
prog=$(basename $exec)
[ -e /etc/sysconfig/$prog ] && . /etc/sysconfig/$prog
cfgfile=/etc/haproxy/haproxy.cfg
pidfile=/var/run/haproxy.pid
lockfile=/var/lock/subsys/haproxy
check() {
$exec -c -V -f $cfgfile $OPTIONS
}
start() {
$exec -c -q -f $cfgfile $OPTIONS
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 $cfgfile -p $pidfile $OPTIONS
retval=$?
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 $cfgfile $OPTIONS
if [ $? -ne 0 ]; then
echo "Errors in configuration file, check with $prog check."
return 1
fi
stop
start
}
reload() {
$exec -c -q -f $cfgfile $OPTIONS
if [ $? -ne 0 ]; then
echo "Errors in configuration file, check with $prog check."
return 1
fi
echo -n $"Reloading $prog: "
$exec -D -f $cfgfile -p $pidfile $OPTIONS -sf $(cat $pidfile)
retval=$?
echo
return $retval
}
force_reload() {
restart
}
fdr_status() {
status $prog
}
case "$1" in
start|stop|restart|reload)
$1
;;
force-reload)
force_reload
;;
check)
check
;;
status)
fdr_status
;;
condrestart|try-restart)
[ ! -f $lockfile ] || restart
;;
*)
echo $"Usage: $0 {start|stop|status|restart|try-restart|reload|force-reload}"
exit 2
esac
#######
chmod +x /etc/init.d/haproxy
mkdir -p /var/lib/haproxy; mkdir /usr/local/haproxy/etc
ln -s /usr/local/haproxy/etc /etc/haproxy
useradd haproxy -M -s /sbin/nologin
cp /usr/local/src/haproxy-1.7.9/haproxy-systemd-wrapper /usr/local/haproxy/sbin
Centos 7 haproxy启动脚本
/usr/lib/systemd/system/haproxy.service
########
Description=HAProxy Load Balancer
After=network.target
ExecStartPre=/usr/local/haproxy/sbin/haproxy -f /etc/haproxy/haproxy.cfg -c -q
ExecStart=/usr/local/haproxy/sbin/haproxy-systemd-wrapper -f /etc/haproxy/haproxy.cfg -p /run/haproxy.pid
ExecReload=/bin/kill -USR2 $MAINPID
KillMode=mixed
Restart=always
WantedBy=multi-user.target
########
systemctl enable haproxy
systemctl start haproxy
配置文件 /etc/haproxy/haproxy.cfg：
mkdir -p /var/lib/haproxy
#######
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/rsyslog
#
# 2) configure local2 events to go to the /var/log/haproxy.log
# file. A line like the following can be added to
# /etc/sysconfig/rsyslog
#
# local2.* /var/log/haproxy.log
#
log 127.0.0.1 local2
chroot /var/lib/haproxy
pidfile /var/run/haproxy.pid
maxconn 50000
user haproxy
group haproxy
daemon
# turn on stats unix socket
stats socket /var/lib/haproxy/stats
defaults
mode http
log global
option httplog
option tcplog
option dontlognull
option http-server-close
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 50000
listen UserAPI
bind 0.0.0.0:6004
mode http
balance roundrobin
option forwardfor except 127.0.0.0/8
#balance source
server serv1.184 192.168.1.184:6004 check inter 2000 rise 2 fall 3 maxconn 20480
server serv1.185 192.168.1.185:6004 check inter 2000 rise 2 fall 3 maxconn 20480
listen admin_status #Frontend和Backend的组合体,监控组的名称，按需自定义名称
bind 0.0.0.0:17818 #监听端口
mode http #http的7层模式
log 127.0.0.1 local2 err #错误日志记录
stats refresh 5s #每隔5秒自动刷新监控页面
stats uri /admin?admin #监控页面的url
stats realm HAProxy #监控页面的提示信息
stats auth tdman:adminpwd #监控页面的用户和密码admin,可以设置多个用户名
# stats hide-version #隐藏统计页面上的HAproxy版本信息
stats admin if TRUE #手工启用/禁用,后端服务器(haproxy-1.4.9以后版本)
#######
开启haproxy日志
touch /var/log/haproxy.log; chown haproxy:haproxy /var/log/haproxy.log
修改文件 /etc/sysconfig/rsyslog
SYSLOGD_OPTIONS="-r -m 0 -c 2"
编辑 /etc/rsyslog.conf 开启下面两行
$ModLoad imudp
[*] $UDPServerRun 514
在下面内容
[*] # Save boot messages also to boot.log
[*] local7.* /var/log/boot.log
之后添加：
# Save haproxy log
local2.* /var/log/haproxy.log
改完重启 rsyslog服务
如果开了防火墙，请开启相应的服务端口
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