journald.conf storage=volatile config support

[Renat]

Hi=) Another feature request:

I need to avoid writing logs to the sd card without disabling the journald. To achieve it I need to update /etc/systemd/journald.conf and set storage to volatile.

https://www.freedesktop.org/software/systemd/man/journald.conf.html

[Kyle Nitzsche (knitzsche)]

Has this been noticed? I believe the filer was told to create this bug. Thanks.

[Renat (renat2017)]

Hi=) Any updates on this, guys?

[Oliver Grawert (ogra)]

note that we currently default to auto, which means that if /var/log/journal has not been created manually by you, journald will never ever write to disk but only use a ringbuffer in ram. in the current setup journald should actually never write to SD, do you have any evidence that it does write ?

[Renat (renat2017)]

Hi, Oliver.

Yes. It writes to syslog.

-rw-r----- 1 syslog adm 126M May 5 14:02 syslog
-rw-r----- 1 syslog adm 664M May 5 06:25 syslog.1

Thanks,
Renat

[Renat (renat2017)]

But there is no `journal`.

[Oliver Grawert (ogra)]

journald never touches syslog, that is rsyslogd ...

for that bit i tried to land https://github.com/snapcore/core/pull/21 but that is "blocked - to discuss"

[Gustavo Niemeyer (niemeyer)]

I'm closing this issue since it sounds like journald is actually doing the right thing.

Oliver also created a forum topic for us to sort out the remaining issues and I'm following up there:

https://forum.snapcraft.io/t/allow-disabling-system-services-on-ubuntu-core/531/2