专栏目录

1. keepalived简介[使用keepalived搭建nginx主备]
2. centos7安装keepalived[使用keepalived搭建nginx主备]
3. keepalived配置详解[使用keepalived搭建nginx主备]
4. keepalived守护nginx[使用keepalived搭建nginx主备]
5. keepalived邮件通知[使用keepalived搭建nginx主备]
6. keepalived主备配置[使用keepalived搭建nginx主备]

安装邮件服务

yum install mailx -y

配置邮件账户

vim /etc/mail.rc
set [email protected]    #发件人邮箱地址(sina设置在sina邮箱中开启允许代理)
set smtp=smtp.sina.com    #smtp地址
set [email protected]  #邮箱用户名，不用加域名
set smtp-auth-password=******   #邮箱密码（邮件密码是smtp代理授权码）
set smtp-auth=login   #邮箱验证方式

测试邮件发送

echo "hello world" | mail -s "hello" [email protected]

配置邮件发送脚本

这里请灵活的切换为你的ip和收件箱

vim /etc/keepalived/mail_notify.sh
#!/bin/bash
echo "192.168.1.203 $1 状态被激活，请确认keepalived服务运行状态"|mail -s "keepalived状态切换警告" [email protected]

脚本授权

chmod 777 /etc/keepalived/mail_notify.sh

修改keepalived配置

这里请灵活的切换，是否启动的时候发送邮件等

vim /etc/keepalived/keepalived.conf
vrrp_instance VI_1 {
    state MASTER
    interface enp0s3
    virtual_router_id 51
    priority 100
    advert_int 1
    #Keepalived进入MASTER状态执行脚本
    notify_master "/etc/keepalived/mail_notify.sh master"
    #Keepalived进入BACKUP状态执行脚本
    notify_backup "/etc/keepalived/mail_notify.sh backup"
    #Keepalived进入FAULT状态执行脚本
    notify_fault "/etc/keepalived/mail_notify.sh fault"
    authentication {
        auth_type PASS
        auth_pass 1111
    }
   track_script {
        chk_http_port
   }
    virtual_ipaddress {
        192.168.200.203
    }
}

启动keepalived生效

/usr/sbin/keepalived