HAproxy+Keepalived高可用负载均衡部署(2)

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一、keepalived安装(主备机器安装方法一样)
wget
tar zxvf popt-1.16.tar.gz
cd popt-1.16
./configure
make && make install
wget
tar zxvf keepalived-1.2.7.tar.gz
cd keepalived-1.2.7
./configure --prefix=/usr/local/keepalived
make && make install

二、初始化脚本
cp /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/init.d/keepalived 
cp /usr/local/keepalived/sbin/keepalived /usr/sbin/ 
cp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/ 
mkdir -p /etc/keepalived/ 
ln -s  /usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/keepalived.conf 
chmod +x /etc/init.d/keepalived

三、主机器配置文件（vi /etc/keepalived/keepalived.conf ），备机器只要（修改有注释地方即可）
! Configuration File for keepalived
global_defs {
router_id LVS_DEVEL
}
vrrp_script chk_http_port {
script "/usr/local/keepalived/check_haproxy.sh"
interval 2
weight 2
}
vrrp_instance VI_1 {
        state MASTER  (备机，改MASTER为BACKUP)
        interface eth0
        virtual_router_id 51
        priority 150  （备机，改150为149）
        advert_int 1
        authentication {
        auth_type PASS
        auth_pass 1111
        }
        track_script {
                chk_http_port
        }
        virtual_ipaddress {
        10.1.1.60
        }
}

四、检测haproxy状态的文件
status=$(ps aux|grep haproxy | grep -v grep | grep -v bash | wc -l)
if [ "${status}" = "0" ]; then
  /etc/init.d/haproxy start
  status2=$(ps aux|grep haproxy | grep -v grep | grep -v bash |wc -l)
  if [ "${status2}" = "0"  ]; then
      /etc/init.d/keepalived stop
  fi
fi

五、启动keepalived
/etc/init.d/keepalived start

HAproxy 的详细介绍：请点这里
HAproxy 的下载地址：请点这里

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