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k668

　　配置环境
　　node1:192.168.1.72
　　node2:192.168.1.73
　　1、node1、node2配置主机名、同步时间、通过hosts文件解析各主机名
　　2、各节点安装keepalived
　　yum -y install keepalived
　　3、配置node1
　　[root@node1 ~]# cd /etc/keepalived/
　　[root@node1 keepalived]# cp keepalived.conf{,.bak}
　　[root@node1 keepalived]# vim keepalived.conf
　　! Configuration File for keepalived
　　

　　global_defs {
　　   notification_email {
　　 root@localhost
　　   }
　　   notification_email_from kaadmin@localhost
　　   smtp_server 127.0.0.1
　　   smtp_connect_timeout 30
　　   router_id node1
　　}
　　

　　vrrp_script chk_maintanance {
　　script "[[ -f /etc/keepalived/down ]] && exit 1 || exit 0"
　　interval 1
　　weight -2
　　}
　　

　　vrrp_instance VI_1 {
　　state MASTER
　　interface eno16777736
　　virtual_router_id 51
　　priority 100
　　advert_int 1
　　authentication {
　　auth_type PASS
　　auth_pass 3b8fd970
　　}
　　virtual_ipaddress {
　　192.168.1.80/24
　　}
　　

　　track_script{
　　chk_maintanance
　　}
   #以下三行为添加通知功能

    notify_master "/etc/keepalived/notify.sh master"
    notify_backup "/etc/keepalived/notify.sh backup"
    notify_fault "/etc/keepalived/notify.sh fault"
　　}
　　

　　vrrp_instance VI_2 {
　　state BACKUP
　　interface eno16777736
　　virtual_router_id 61
　　priority 99
　　advert_int 1
　　authentication {
　　auth_type PASS
　　auth_pass 7b3fd970aa
　　}
　　virtual_ipaddress {
　　192.168.1.180/24
　　}
　　

　　track_script{
　　chk_maintanance
　　}
　　}
　　

　　通知脚本（node1和node2相同）
　　

　　[root@node1 keepalived]# vim /etc/keepalived/notify.sh
　　#!/bin/bash
　　# Author: MageEdu
　　# description: An example of notify script
　　#
　　

　　vip=192.168.1.80
　　contact='root@localhost'
　　

　　notify() {
　　mailsubject="`hostname` to be $1: $vip floating"
　　mailbody="`date '+%F %H:%M:%S'`: vrrp transition, `hostname` changed to be $1"
　　echo $mailbody | mail -s "$mailsubject" $contact
　　}
　　

　　case "$1" in
　　master)
　　notify master
　　exit 0
　　;;
　　backup)
　　notify backup
　　exit 0
　　;;
　　fault)
　　notify fault
　　exit 0
　　;;
　　*)
　　echo 'Usage: `basename $0` {master|backup|fault}'
　　exit 1
　　;;
　　esac
　　

　　[root@node1 keepalived]# scp notify.sh node2:/etc/keepalived/
　　4、配置node2
　　[root@node1 keepalived]# scp keepalived.conf node2:/etc/keepalived/
　　[root@node2 ~]# cd /etc/keepalived/
　　[root@node2 keepalived]# vim keepalived.conf
　　! Configuration File for keepalived
　　

　　global_defs {
　　   notification_email {
　　 root@localhost
　　   }
　　   notification_email_from kaadmin@localhost
　　   smtp_server 127.0.0.1
　　   smtp_connect_timeout 30
　　   router_id node2
　　}
　　

　　vrrp_script chk_maintanance {
　　script "[[ -f /etc/keepalived/down ]] && exit 1 || exit 0"
　　interval 1
　　weight -2
　　}
　　

　　vrrp_instance VI_1 {
　　state BACKUP
　　interface eno16777736
　　virtual_router_id 51
　　priority 99
　　advert_int 1
　　authentication {
　　auth_type PASS
　　auth_pass 3b8fd970
　　}
　　virtual_ipaddress {
　　192.168.1.80/24
　　}
　　

　　track_script{
　　chk_maintanance
　　}
　　#以下三行为添加通知功能

　　    notify_master "/etc/keepalived/notify.sh master"
　　    notify_backup "/etc/keepalived/notify.sh backup"
　　    notify_fault "/etc/keepalived/notify.sh fault"
　　

　　}
　　

　　vrrp_instance VI_2 {
　　state MASTER
　　interface eno16777736
　　virtual_router_id 61
　　priority 100
　　advert_int 1
　　authentication {
　　auth_type PASS
　　auth_pass 7b3fd970aa
　　}
　　virtual_ipaddress {
　　192.168.1.180/24
　　}
　　

　　track_script{
　　chk_maintanance
　　}
　　}
　　

　　

　　5、启动
　　[root@node1 keepalived]# systemctl start keepalived.service
　　[root@node2 keepalived]# systemctl start keepalived.service
　　

　　6、添加日志储存文件
　　[root@node1 keepalived]# vim /etc/sysconfig/keepalived
　　修改
　　KEEPALIVED_OPTIONS="-D"
　　为
　　KEEPALIVED_OPTIONS="-D -S 3"
　　
　　[root@node1 keepalived]# vim /etc/rsyslog.conf
　　添加一行
　　local3.*                                                /var/log/keepalived.log
　　[root@node1 keepalived]# systemctl restart rsyslog.service
　　[root@node1 keepalived]# systemctl restart keepalived.service