Re: s6/s6-rc policy for Gentoo: The logging directory

Paul Sopka <[email protected]> Sat, 13 Jul 2024 12:04:40 +0200

Newsgroups	gmane.comp.sysutils.supervision.general
Message-ID	<[email protected]>

> On my setup, logs are stored under a dot-directory in my home directory,
> which avoids needing any cooperation from root when setting up user
> services (and the mentioned risk of overlap between user and system
> services).
Since I have a system service setting up the user service tree, this is 
a non-issue for me. As of now, this service just creates a user owned 
subdir /var/log/s6/user/${USER}, where all logs from ${USER} go. Thus 
the main thing probably ends up weighing "having all logs at one 
place"(at /var/log/s6) against "having all user-stuff as well as the 
logs in one place" (at ~/).

If I now compare this to ${XDG_RUNTIME_DIR} and the service dir of the 
s6 user-tree, it follows that, should I have the logs at "~/...", why do 
I have "${XDG_RUNTIME_DIR} as well as the service dir of the user" at 
/run/...

It is clear that those should reside in tmpfs for speed and the elegance 
of self clean up on boot, should something go wrong. I would consider 
mounting an tmpfs for every user having set up user-services at "~/" 
needlessly complicated and overkill.

For consistency reasons it then follows that the user tree logs should 
be in a dir at /var/log/s6/users/${USER} or something comparable, as the 
"${XDG_RUNTIME_DIR} and service dir of the user" are at 
/run/user/${USER} or comparable. With the nice bonus of having all the 
logs in one place.

What do you think about that reasoning?


> Due to /var == ~/.local/state according to the XDG spec (which, from your
> other threads, you seem to want to follow closely), you might want to use
> "${HOME}/.local/state/log/${daemon}" [1].

I do not *want* to adhere to the XDG spec, it just seemed sensible to me 
and nobody has provided any reason against it so far.

Anyway,  [1] made me think about why not to use a "/"-like structure 
under "~/" (e.g. ~/.var, ~/.etc) instead of the XDG spec. Can you point 
me to any thread/list discussing that?

> [1]https://forum.artixlinux.org/index.php/topic,6918.msg41919.html#msg41919


I wish you a very nice weekend!


Paul

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