haproxy部署笔记

感谢本组同志秦小妹的协助，此篇文章源自于她的劳动成果，并非本人原创

1、HAProxy安装及日志配置

#  vim install-haproxy.sh
#! /bin/bash

dir=/usr/local
ha_dir=${dir}/haproxy

#install
if [ ! -e "$ha_dir" ]; then
#下载源码到/tmp/haproxy-1.4.22.tar.gz
wget -nc -P /tmp http://haproxy.1wt.eu/download/1.4/src/haproxy-1.4.22.tar.gz
  tar -zxvf /tmp/haproxy-1.4.22.tar.gz -C /tmp
  cd /tmp/haproxy-1.4.22

#编译、安装
  make TARGET=linux26 PREFIX=/usr/local/haproxy
  make install PREFIX=/usr/local/haproxy
  cd /usr/local/haproxy
#
if [ ! -e "$ha_dir" ]; then
echo "error! can't install haproxy please check! Will now out of the scrip !"
        exit 1
  else
     #添加启动用户组
     mkdir -p /var/haproxy
     /usr/sbin/groupaddhaproxy
     /usr/sbin/useradd -g haproxy -d /var/haproxy -s /sbin/nologinhaproxy
     #创建日志目录
     mkdir -p /data/haproxy/logs
     chown -R haproxy:haproxy /data/haproxy/
     chmod 775 -R /data/haproxy
        ! grep 'haproxy' /etc/syslog.conf&& echo ' local0.*      /data/haproxy/logs/haproxy.log'>> /etc/syslog.conf
     sed -ir 's/SYSLOGD_OPTIONS="-m 0"/SYSLOGD_OPTIONS="-r -m 0"/g'   /etc/sysconfig/syslog && /etc/init.d/syslog restart
fi
else
echo "haproxy is already exists!"
fi

2、添加/usr/local/haproxy/conf/haproxy.cfg配置文件

#HAProxy配置文件vim /usr/local/haproxy/conf/haproxy.cfg

global
  log 127.0.0.1 local0 info #[err warning info debug]
maxconn 65535
chroot /usr/local/haproxy
  user haproxy
  group haproxy
  daemon
nbproc 1
pidfile /usr/local/haproxy/haproxy.pid
defaults
maxconn 65535
  timeout connect 5s  #连接超时
  timeout client 30s  #客户端超时
  timeout server 30s  #服务器超时
listen stats
  bind 0.0.0.0:1080
  mode http
  log 127.0.0.1 local0 info
  option httplog
  option httpclose
  option dontlognull
  retries 3
  stats uri /admin?stats
frontend varnish_front
  bind :80
mode http
log global
  option httplog
  option httpclose
  option forwardfor
maxconn 65535 
  capture request header Host len 40
  capture request header Content-Length len 10
  capture request header Refererlen 200
  capture response header Server len 40
  capture response header Content-lenthlen 10
  capture response header Cache-Control len 10 
default_backendvarnish_backend
backend varnish_backend
  mode http
  balance uri
  hash-type consistent

server varnish0 192.168.1.20:8089 cookie varnish0 weight 1 check inter 40000 maxconn 65535 rise 3 fall 3
server varnish1 192.168.1.21:8089 cookie varnish1 weight 1 check inter 40000 maxconn 65535 rise 3 fall 3
server varnish2 192.168.1.22:8089 cookie varnish2 weight 1 check inter 40000 maxconn 65535 rise 3 fall 3

 

3、工作配置

3.1、HAProxy开机启动脚本

# vim /etc/rc.d/init.d/haproxy内容如下：
#! /bin/sh
# chkconfig: - 90 10  #chkconfig:行和 description:行一定要写，否则执行service –add时会出现：haproxy服务不支持chkconfig
# description: HAProxy is a TCP/HTTP reverse proxy which is particularly suited for high availability environments.

. /etc/init.d/functions
# Source networking configuration.
. /etc/sysconfig/network
# Check that networking is up.

[ ${NETWORKING} = "no" ] && exit 0
config="/usr/local/haproxy/conf/haproxy.cfg"
exec="/usr/local/haproxy/sbin/haproxy"
PID=/usr/local/haproxy/haproxy.pid
prog="haproxy"
[ -f $config ] || exit 1
RETVAL=0
start() {
  daemon $exec -c -f $config
if [ $? -ne 0 ]; then
echo "Errors found in configuration file."
        return 1
    fi
  echo -n "Starting HAproxy: "
  $exec -D -f $config
  RETVAL=$?
  echo
  [ $RETVAL -eq 0 ] && touch /var/lock/subsys/haproxy
  return $RETVAL
}
stop() {
echo -n "Shutting down HAproxy: "
killproc -p $PID $prog
RETVAL=$?
echo
[ $RETVAL -eq 0 ] &&rm -f /var/lock/subsys/haproxy
return $RETVAL
}
restart() {
$exec -c -q -f $config
if [ $? -ne 0 ]; then
echo "Errors found in configuration file, check it with 'haproxy check'."
       return 1
   fi
stop
start
}
rhstatus() {
status -p $PID $prog
}
# See how we were called.
case "$1" in
start)
        start
        ;;
stop)
        stop
        ;;
restart)
        restart
        ;;
status)
rhstatus
        ;;
*)
        echo $"Usage: haproxy {start|stop|restart|status}"
        RETVAL=1
esac
        exit $RETVAL

#保存后给予可执行权限
chmod +x /etc/rc.d/init.d/haproxy
#就可以使用/sbin/service haproxystart|stop|restart|status来控制服务的启动、关闭和重启、查询状态
#并可以通过以下命令加载到开机服务列表
/sbin/chkconfig --add haproxy
/sbin/chkconfig --level 2345haproxy on

3.2、HAProxy日志切分脚本

a)、添加/usr/local/haproxy/bin/cut_haproxy_log.sh脚本

#! /bin/sh

HOME_PATH=/data/haproxy
LOG_FILE=${HOME_PATH}/logs/haproxy.log
date=$(date -d "yesterday" +"%Y-%m-%d")

cp ${LOG_FILE} ${HOME_PATH}/logs/haproxy-${date}.log
echo > ${LOG_FILE}

b)、定时运行切分日志脚本

echo "00 0 * * * /usr/local/haproxy/bin/cut_haproxy_log.sh" >> /etc/crontab