1安装必须的相关包
yum -y install kernel-devel openssl* popt popt-devel
2下载安装
wget http://www.keepalived.org/software/keepalived-1.2.9.tar.gz
tar -xf keepalived-1.2.9.tar.gz
mkdir /usr/local/keepalived
cd ~/ keepalived-1.2.9
./configure --prefix=/usr/local/keepalived/
make && make install
cp /usr/local/keepalived/sbin/keepalived /usr/sbin/
cp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig
cp /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/init.d/
chmod +x /etc/init.d/keepalived
mkdir /etc/keepalived
cp /usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived
3修改配置文件如下
[[email protected] ~]# vim /etc/keepalived/keepalived.conf
global_defs {
notification_email {
[email protected]
}
notification_email_from [email protected]
smtp_server smtp.126.com # 邮件服务器地址
smtp_connect_timeout 30 # 连接超时时间
router_id LVS_Master
}
vrrp_script chk_http_port {
script "/etc/keepalived/check_haproxy.sh" # haproxy运行检测脚本[haproxy宕掉重启haproxy服务]
interval 5 # 脚本执行间隔
weight -5 # 执行脚本后优先级变更：5表示优先级+5;-5则表示优先级-5
}
vrrp_instance VI_A {
state MASTER # 主上此值为MASTER,从上为BACKUP
interface eth0
virtual_router_id 50 # 此值主从必须一致
priority 100
advert_int 1
authentication { # authentication两个参数值,主从也必须一致
auth_type PASS
auth_pass yiban
}
track_script {
chk_http_port
}
virtual_ipaddress {
192.168.78.220
}
}
5启动keepalived
确保网络正常
service network restart (线上不要这么做)
/etc/init.d/keepalived start
查看结果
ip a