What are the options to manage the size of /var/log/syslog of an embedded system

Question

I have an embedded system (i.MX6) running a modified version of Ubuntu 18.04 LTS bionic stored on its SD card and I want to know how to manage /var/log/syslog file size.

I noticed that systemd journal doesn't manage that file when I type this :

journalctl --vacuum-size=10M

I really don't need systemd journals, but this is another issue...

Can someone confirm that systemd, apart from redirecting the standard output of services to /var/log/syslog (can be disabled apparently) does not propose anything else to manage syslog ?

Should I install "Logrotate" ? Since I'm using an SD card I should be careful and not to wear it out with an unsuitable configuration.

Are there other options ?

This can help you https://askubuntu.com/questions/184949/how-do-i-limit-the-size-of-my-syslog — jedi, Apr 15 '22 at 09:36
Does this answer your question? Systemd logs (`journalctl`) are too large and slow — Pablo Bianchi, Apr 19 '22 at 14:22
@PabloBianchi No but I posted a new question here : https://askubuntu.com/questions/1403205/how-to-disable-logging-to-var-log-syslog-and-use-only-systemd-logs — Aminos, Apr 19 '22 at 16:03

score 1 · Accepted Answer · answered Apr 19 '22 at 16:05

Finally, I disabled Rsyslog and made systemd the only log manager of my embedded system since I can fix a limit of the log size in /etc/systemd/journald.conf

I prefer the UNIX philosophy and simple stuff (KISS) but systemd is already installed in the Ubuntu of the embedded system I'm working on so I will not complicate things for me.

What are the options to manage the size of /var/log/syslog of an embedded system

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