超融合架构服务之Korpalived回复邮件通知配置

[root@node01 keepalived]# cat notify.sh
#!/bin/bash
#
contact='root@localhost'
notify() {
local mailsubject="$(hostname) to be $1, vip floating"
local mailbody="$(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
[root@node01 keepalived]#

[root@node01 keepalived]# mail
-bash: mail: command not found
[root@node01 keepalived]#
[root@node01 keepalived]# yum install mailx
Loaded plugins: fastestmirror
base                                                                          | 3.6 kB  00:00:00
docker-ce-stable                                                              | 3.5 kB  00:00:00
epel                                                                          | 4.7 kB  00:00:00
extras                                                                        | 2.9 kB  00:00:00
updates                                                                       | 2.9 kB  00:00:00
(1/2): epel/x86_64/updateinfo                                                 | 1.0 MB  00:00:00
(2/2): epel/x86_64/primary_db                                                 | 6.9 MB  00:00:01
Loading mirror speeds from cached hostfile
* base: mirrors.aliyun.com
* extras: mirrors.aliyun.com
* updates: mirrors.aliyun.com
Resolving Dependencies
--> Running transaction check
---> Package mailx.x86_64 0:12.5-19.el7 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
=====================================================================================================
Package               Arch                   Version                     Repository            Size
=====================================================================================================
Installing:
mailx                 x86_64                 12.5-19.el7                 base                 245 k
Transaction Summary
=====================================================================================================
Install  1 Package
Total download size: 245 k
Installed size: 466 k
Is this ok [y/d/N]: y
Downloading packages:
mailx-12.5-19.el7.x86_64.rpm                                                  | 245 kB  00:00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : mailx-12.5-19.el7.x86_64                                                          1/1
Verifying  : mailx-12.5-19.el7.x86_64                                                          1/1
Installed:
mailx.x86_64 0:12.5-19.el7
Complete!
[root@node01 keepalived]#