1、以開機啟動EMQX為例。
2、創建開機啟動腳本
[root@centos8 startup]$ vim emqx-startup.sh #!/bin/bash #description: emqx啟動服務 #獲取傳入命令 cmd=$1 #獲取emqx進程ID pid=`ps -ef | grep run_erl | grep /usr/local/emqx/bin/emqx | awk '{print $2}'` if [ ! $cmd ]; then echo "please input cmd {start|restart|stop|status}" exit fi #寫入日志 echo "-----------------------------------------------------------------------------" >> /root/startup/emqx.log echo -e "`date +%Y/%D/%H:%M` emqx exec $cmd start." >> /root/startup/emqx.log if [ $cmd == 'start' ]; then if [ ! $pid ]; then /usr/local/emqx/bin/emqx start else echo "emqx is running, pid is $pid." fi fi if [ $cmd == 'stop' ]; then if [ $pid ]; then /usr/local/emqx/bin/emqx stop else echo "emqx is already stop." fi fi if [ $cmd == 'status' ]; then /usr/local/emqx/bin/emqx_ctl status fi echo -e "`date +%Y/%D/%H:%M` emqx exec $cmd end." >> /root/startup/emqx.log echo " " >> /root/startup/emqx.log
2、賦予腳本可執行權限
chmod +x emqx-startup.sh
3、驗證腳本
[root@centos8 startup]$ ./emqx-startup.sh start [root@centos8 startup]$ ./emqx-startup.sh stop [root@centos8 startup]$ ./emqx-startup.sh status
4、進入進入systemd配置文件目錄創建service服務
[root@centos8 ~]$ cd /usr/lib/systemd/system [root@centos8 system]$ vim emqx-autorun.service [Unit] Description=emqx for auto start Wants=network-online.target [Service] User=root Type=forking ExecStart=/usr/bin/bash /root/startup/emqx-startup.sh start ExecStop=/usr/bin/bash /root/startup/emqx-startup.sh stop [Install] WantedBy=multi-user.target
5、重新加載systemd配置
[root@centos8 ~]# systemctl daemon-reload
6、添加開機自啟動
[root@centos8 system]# systemctl enable emqx-autorun.service Created symlink /etc/systemd/system/multi-user.target.wants/emqx-autorun.service → /usr/lib/systemd/system/emqx-autorun.service.
7、啟動停止測試
[root@centos8 system]# systemctl start emqx-autorun [root@centos8 system]# systemctl status emqx-autorun
8、重啟驗證
關於systemd配置說明，傳送門：https://www.cnblogs.com/hunttown/p/14872185.html
Systemd常用的幾個操作命令，傳送門：https://www.cnblogs.com/hunttown/p/15111186.html