[systemd-devel] Systemd service and structured logging
Mantas Mikulėnas
grawity at gmail.com
Mon May 6 09:09:02 UTC 2019
On Mon, May 6, 2019 at 10:09 AM Thomas Güttler <guettliml at thomas-guettler.de>
wrote:
> Am 03.05.19 um 13:29 schrieb Jérémy ROSEN:
> > if you want the whole power of structured logs, you need to use the
> journald API
>
On the other hand, JSON parsing might be a useful addition to journald, as
apparently "@cee: {<jsondict>}" is a quite common syslog format.
> > I am not sure in what language your program is written, but if you are
> using C, it's pretty trivial to do
> > (and i'm pretty sure most bindings are trivial to use too)
>
>
> Yes, this would work.
>
>
> Solution 1:
> My service (written Python) uses the journald API.
> Disadvantage: My script can't be run under a different environment
> (without journald)
>
>
I would suggest implementing support for multiple logging backends – don't
call journald APIs directly and don't print out JSON directly, but have
abstract functions such as log_info(text, **kvpairs) or something such.
That's what many programs already do for file/syslog/journal backends.
(Possibly just use the `logging` module in python?)
--
Mantas Mikulėnas
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