Keepalived 日志提示Error exec-ing command ‘/etc/keepalived/check_port.sh’, error 8: Exec format error

完整日志如下

[root@abcdocker keepalived]# journalctl -fu keepalived
-- Logs begin at Tue 2023-08-08 16:58:16 CST. --
Sep 19 16:45:25 abcdocker Keepalived_vrrp[48476]: Assigned address 1.1.1.1 for interface eth0
Sep 19 16:45:25 abcdocker Keepalived_vrrp[48476]: Registering gratuitous ARP shared channel
Sep 19 16:45:25 abcdocker Keepalived_vrrp[48476]: (VI_1) removing VIPs.
Sep 19 16:45:25 abcdocker Keepalived_vrrp[48476]: (VI_1) Entering BACKUP STATE (init)
Sep 19 16:45:25 abcdocker Keepalived_vrrp[48476]: VRRP sockpool: [ifindex(  2), family(IPv4), proto(112), fd(13,14), unicast, address(10.51.214.10)]
Sep 19 16:45:25 abcdocker Keepalived_vrrp[48477]: Error exec-ing command '/etc/keepalived/check_port.sh', error 8: Exec format error
Sep 19 16:45:25 abcdocker Keepalived_vrrp[48476]: VRRP_Script(chk_nginx) succeeded
Sep 19 16:45:25 abcdocker systemd[1]: Started LVS and VRRP High Availability Monitor.
Sep 19 16:45:27 abcdocker Keepalived_vrrp[48478]: Error exec-ing command '/etc/keepalived/check_port.sh', error 8: Exec format error
Sep 19 16:45:29 abcdocker Keepalived_vrrp[48480]: Error exec-ing command '/etc/keepalived/check_port.sh', error 8: Exec format error

Sep 19 16:45:35 abcdocker Keepalived_vrrp[48484]: Error exec-ing command '/etc/keepalived/check_port.sh', error 8: Exec format error

/etc/keepalived/check_port.sh'脚本内容如下

• 我的系统版本为Centos8

cat >check_port.sh<<'EOF'
CHK_PORT=$1
 if [ -n "$CHK_PORT" ];then
        PORT_PROCESS=`lsof -i:$CHK_PORT|wc -l`
        if [ $PORT_PROCESS -eq 0 ];then
                echo "Port $CHK_PORT Is Not Used,End."
                systemctl stop keepalived
                exit 1
        fi
 else
        echo "Check Port Cant Be Empty!"
 fi
EOF

原因是没有添加#bin/bash解析，但是我在Centos7确实没遇到这种问题