Logrotate Error and possible solution

Troubleshooting
,
1
  • DietPi 8.17.2
  • master
  • bullseye
  • Linux RPi4 6.1.21-v8+ #1642 SMP PREEMPT Mon Apr 3 17:24:16 BST 2023 aarch64 GNU/Linux

Today I checked my logs because of a (possible) freeze of my RPi 4 (maybe it wasn’t related to the SBC at all, I couldn’t find anything in logs, maybe my wifi was just down, but this is another topic)
So instead I found some error messages, first about MariaDB and then something about logrotate:

May  7 00:00:09 RPi4 systemd[1]: Starting Rotate log files...
May  7 00:00:09 RPi4 logrotate[432687]: error: error running shared postrotate script for '/var/log/lighttpd/*.log '
May  7 00:00:10 RPi4 systemd[1]: rsyslog.service: Sent signal SIGHUP to main process 338 (rsyslogd) on client request.
May  7 00:00:10 RPi4 systemd[1]: logrotate.service: Main process exited, code=exited, status=1/FAILURE
May  7 00:00:10 RPi4 systemd[1]: logrotate.service: Failed with result 'exit-code'.
May  7 00:00:10 RPi4 systemd[1]: Failed to start Rotate log files.

I found some related threads in other forums, for example:
https://discourse.pi-hole.net/t/logrotate-of-lighttpd-logs-failing-due-to-directory-permissions/6552

Indeed /var/log/lighttpd is owned by www-data:

dietpi@RPi4:~$ ls -la /var/log/lighttpd/
insgesamt 8496
drwxr-x---  2 www-data www-data    4096  7. Mai 00:00 .

So I followed the workaround and added su www-data www-data to my /etc/logrotate.d/lighttpd:

/var/log/lighttpd/*.log {
        su www-data www-data
        weekly
        missingok
        rotate 12
        compress
     	delaycompress
        notifempty
        sharedscripts
        postrotate
             if [ -x /usr/sbin/invoke-rc.d ]; then \
                invoke-rc.d lighttpd reopen-logs > /dev/null 2>&1; \
             else \
                /etc/init.d/lighttpd reopen-logs > /dev/null 2>&1; \
             fi; \
        endscript
}

I ran cron.daily manually, but I saw nothing in the syslogs.
Is it only logged when executed by systemd?

Edit:

also the last \ in the script is maybe wrong? It would not jump to endscript?

2

Alright, last night everything went fine with the added line:

May 10 00:00:09 RPi4 systemd[1]: Starting Rotate log files...
May 10 00:00:09 RPi4 systemd[1]: logrotate.service: Succeeded.
May 10 00:00:09 RPi4 systemd[1]: Finished Rotate log files.
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