当关闭nginx，不会漂移VIP，keepalived只在进程被关闭，宕机，网络中断才会漂移VIP，所以写了个脚本，放到keepalived中执行，发现无法执行脚本，提示如下报错
Keepalived_vrrp: Registering gratuitous ARP shared channel Keepalived_vrrp: Opening file '/etc/keepalived/keepalived.conf' Keepalived_vrrp: WARNING - default user 'keepalived_script' for script execution doe[......]