CODE EXAMPLE FOR SQL

mysql master slave setup with keepalived

! Configuration File for keepalived
global_defs {
      notification_email {
        alexzeng@wordpress.com
      }
      notification_email_from alexzeng@wordpress.com
      smtp_server mx.wordpress.com
      smtp_connect_timeout 30
      router_id mysql-ha
      }
 
vrrp_script check_mysql {
   script "/mysql/keepalived_check.sh db02.wordpress.com"
   interval 2
   weight 2
}
 
vrrp_instance VI_1 {
      state BACKUP
      interface eth1
      virtual_router_id 51
      priority 100
      advert_int 1
      nopreempt  # only needed on higher priority node
      authentication {
      auth_type PASS
      auth_pass 1111
      }
 
      track_script {
        check_mysql
      }
      virtual_ipaddress {
       192.168.5.144/24 dev eth1 label eth1:1
      }
      notify_master /mysql/keepalived_master.sh
      notify_backup /mysql/keepalived_backup.sh
}