keepalived安装部署

keepalived安装部署

下载最新软件：http://www.keepalived.org/sof...
上传服务器安装：

tar xvf http://www.keepalived.org/software/keepalived-1.3.5.tar.gz
cd keepalived-1.3.5
./configure --prefix=/usr/local/keepalived
make && make install 
ln -s /usr/local/keepalived/sbin/ /usr/bin/
ln -s /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/
cp /root/keepalived-1.3.5/keepalived/etc/init.d/keepalived.rh.init /etc/init.d/keepalived
mkdir  /etc/keepalived
echo 1 > /proc/sys/net/ipv4/ip_forward　　　　　　#开启路由转发功能
echo 1 > /proc/sys/net/ipv4/ip_nonlocal_bind    #开启允许绑定非本机IP

配置文件样例

! Configuration File for keepalived
global_defs {
   notification_email {
     [e-mail]
   }
   notification_email_from [e-mail]
   smtp_server 127.0.0.1
   smtp_connect_timeout 30
   router_id LVS_DEVEL
}
vrrp_script chk_http_port {
                script "/root/check_haproxy.sh"
                interval 2
                weight 2
}

vrrp_instance VI_1 {
    state MASTER
    interface eth1
    virtual_router_id 51
    priority 100
    advert_int 1
    mcast_src_ip 10.0.11.154 
    authentication {
        auth_type PASS
        auth_pass 1111
    }
track_script {
       chk_http_port
    }
    virtual_ipaddress {
       10.0.11.16/24
    }
}

haproxy检查脚本（需要添加执行权限）

#!/bin/bash
status=`ps aux|grep haproxy | grep -v grep | grep -v bash | wc -l`
if [ "${status}" = "0" ]; then
    /etc/init.d/haproxy start
fi
status2=`ps aux|grep haproxy | grep -v grep | grep -v bash |wc -l`
if [ "${status2}" = "0"  ]; then
    /etc/init.d/keepalived stop
fi

日志添加

默认日志存放在系统的/var/log/messages下
把日志单独存放需要修改/etc/sysconfig/keepalived

在/etc/rsyslog.conf末尾添加

重启日志服务
/etc/init.d/rsyslog restart
重启keepalived
/etc/init.d/keepalived
查看日志