Linux 服务监控脚本

Linux 服务监控脚本

个人搭建的zabbix服务器因性能问题总是关闭，所以写了个脚本对zabbix-server服务进行监控。当服务停止时，脚本会自动拉起服务并记录日志，方面定位排查。

[root@elttwl ~]# vim /opt/scripts/zabbix-monitor.sh
#!/bin/bash
 
SERVICE=zabbix-server
 
while true
do
    systemctl status $SERVICE > /dev/null
    if [ $? -gt 0 ]; then
        DATE=`date "+%Y-%m-%d %H:%M:%S"`
        STATE="service is not running."
        echo $STATE
        echo $DATE $STATE >> /var/log/zabbix-monitor/zabbix-monitor.log
        systemctl start $SERVICE
        echo "service is started."
    else
        echo "service is running."
    fi
    sleep 60
done

通过创建Systemd服务使脚本长期稳定运行

[root@elttwl ~]# vim /etc/systemd/system/zabbix-monitor.service
[Unit]
Description=Zabbix-server service monitor
After=network.target
 
[Service]
Type=simple
User=root
# 监控脚本的路径
ExecStart=/bin/bash /opt/scripts/zabbix-monitor.sh
Restart=on-failure
 RestartSec=5
 
[Install]
WantedBy=mutil-user.target

执行以下命令使Systemd重新加载配置文件

systemctl daemon-reload

启动服务并设置开机自启

# systemd文件的名字即为服务的名字
systemctl start zabbix-monitor.service
systemctl enable zabbix-monitor.service