研究出来了通过 /etc/rc.local -> /root/autostart.sh 自启动的方法

run-git.sh

@@ -2,12 +2,12 @@ echo 'Starting gogs git service in screen...'
 #screen -dmS gogs
 #screen -S gogs -X stuff "/root/gogs/gogs web\n"
 cd ~/git/
-pm2 start -x './gogs/gogs' -n git.gogs -- web
+sudo pm2 start -x './gogs/gogs' -n git.gogs -- web # sudo it so that pm2 list shows it as root
 cd ~
 
 echo 'Starting http2https web service in pm2...'
 cd ~/git/www
-pm2 start server.js --name git.http2https
+sudo pm2 start server.js --name git.http2https # sudo it so that pm2 list shows it as root
 cd ~/
 
 echo 'Done!'