keepalived 郵件通知
郵件通知需要先定義一個郵件發送的腳本,然後在虛擬IP的配置實例中添加相應的觸發機制來實現當keepalived主備發生變化時進行發送郵件,以通知運維人員的目的。
實現方法
準備主機兩臺
server | hostname | ip |
---|---|---|
keepalived | s1 | 172.20.27.10 |
keepalived | s2 | 172.20.27.11 |
S1 節點操作
1.安裝mailx
[root@s1 ~]# yum install mailx -y
2.設置發件人的配置
[root@s1 ~]# vim /etc/mail.rc
set [email protected]
set smtp=smtp.qq.com
set [email protected]
set smtp-auth-password=ugfwthlnfossbiif
set smtp-auth=login
set ssl-verify=ignore
3.編寫郵件通知腳本
[root@s1 ~]# vim /etc/keepalived/notify.sh
#!/bin/bash
contact='[email protected]'
notify() {
mailsubject="$(hostname) to be $1, vip轉移"
mailbody="$(date +'%F %T'): vrrp transition, $(hostname) changed to be $1"
echo "$mailbody" | mail -s "$mailsubject" $contact
}
case $1 in
master)
notify master
;;
backup)
notify backup
;;
fault)
notify fault
;;
*)
echo "Usage: $(basename $0) {master|backup|fault}"
exit 1
;;
esac
4.在配置文件中調用腳本
[root@s1 ~]# vim /etc/keepalived/keepalived.conf
[email protected]
}
notification_email_from [email protected]
smtp_server 127.0.0.1
smtp_connect_timeout 30
router_id s1.mylinuxops.com
vrrp_skip_check_adv_addr
#vrrp_strict
vrrp_iptables
vrrp_garp_interval 0
vrrp_gna_interval 0
}
vrrp_instance VI_1 {
state MASTER
interface ens33
virtual_router_id 27
priority 100
advert_int 2
authentication {
auth_type PASS
auth_pass 1111
}
unicast_src_ip 172.20.27.10
unicast_peer {
172.20.27.11
}
virtual_ipaddress {
172.20.27.100 dev ens33 label ens33:0
}
#以下三行爲調用通知腳本
notify_master "/etc/keepalived/notify.sh master"
#當前節點成爲主節點時觸發的腳本
notify_backup "/etc/keepalived/notify.sh backup"
#當前節點轉爲備節點時觸發的腳本
notify_fault "/etc/keepalived/notify.sh fault"
#當前節點轉爲失敗狀態時觸發的腳本
}
重啓服務
[root@s1 ~]# systemctl restart keepalived
s1節點配置完畢後,s2節點也執行相同的操作。
測試
當s1節點停止服務後,s2節點而發送郵件通知