簡單的 linux H.A 架構 keepalived (linux vrrp) Part III

延續 簡單的 linux H.A 架構 這個主題,
Part I
http://xrcd2.blogspot.tw/2013/04/linux-ha-keepalived-linux-vrrp.html
Part II
http://xrcd2.blogspot.tw/2013/05/linux-ha-keepalived-linux-vrrp-part-ii.html

加入 notify shell

notify_master   "/etc/keepalived/notify_master.sh"   #變成 master 時執行的 shell
notify_backup  "/etc/keepalived/notify_backup.sh"  #變成 backup 時執行的 shell
notify_fault      "/etc/keepalived/notify_fault.sh"       #故障時執行的 shell
notify                "/etc/keepalived/notify.sh"                # 狀態轉換時執行的 shell 


加入的位置如下:

vrrp_instance VI_1 {
    state MASTER
    interface eth0
    virtual_router_id 1
    priority 100
    advert_int 3
    smtp_alert
    authentication {
        auth_type PASS
        auth_pass 1234
    }
    virtual_ipaddress {
        192.168.1.1
    }
    notify_master "/etc/keepalived/notify_master.sh"
    notify_backup "/etc/keepalived/notify_backup.sh"
    track_script {
     check_shell
     chk_httpd
     chk_http_port
     chk_https_port
     chk_8080_port
    }
    track_interface{
     eth0   
    }

}