Hello, your last suggestion really helps me. After I use “chmod -R o+rx” for director repo in /usr/share/icingaweb2/modules, and restart OS, everything looks ok now. Icinga-director.service looks in an activating status. I suppose somewhere in Director from web console needs to configure. At least I can see Director module enable with version info and the TAB “Director” in Icinga Web has been shown. So I will do some more configuration based on this. Thanks again for your professional support on this.
icinga:~ # systemctl status icinga-director.service
● icinga-director.service - Icinga Director - Monitoring Configuration
Loaded: loaded (/etc/systemd/system/icinga-director.service; enabled; vendor preset: disabled)
Active: activating (auto-restart) (Result: exit-code) since Fri 2021-08-13 16:37:03 CST; 11s ago
Docs: Introduction - Icinga Director
Process: 2474 ExecStart=/usr/bin/icingacli director daemon run (code=exited, status=255/EXCEPTION)
Main PID: 2474 (code=exited, status=255/EXCEPTION)