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services: Add 'log-cleanup' service to '%base-services' for build logs.

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* gnu/services/base.scm (%base-services): Add 'log-cleanup-service-type'
instance.
* doc/guix.texi (Log Rotation): Add example and mention '%base-services'.
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Ludovic Courtès 2022-03-31 23:17:48 +02:00
parent 3b9b3b4931
commit e692dc632c
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2 changed files with 16 additions and 1 deletions
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12
doc/guix.texi
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@ -17645,7 +17645,17 @@ Some log files just need to be deleted periodically once they are old,
without any other criterion and without any archival step. This is the
case of build logs stored by @command{guix-daemon} under
@file{/var/log/guix/drvs} (@pxref{Invoking guix-daemon}). The
@code{log-cleanup} service addresses this use case.
@code{log-cleanup} service addresses this use case. For example,
@code{%base-services} (@pxref{Base Services}) includes the following:
@lisp
;; Periodically delete old build logs.
(service log-cleanup-service-type
(log-cleanup-configuration
(directory "/var/log/guix/drvs")))
@end lisp
That ensures build logs do not accumulate endlessly.
@defvr {Scheme Variable} log-cleanup-service-type
This is the type of the service to delete old logs. Its value must be a

5
gnu/services/base.scm
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@ -2817,6 +2817,11 @@ to handle."
(service rottlog-service-type)
;; Periodically delete old build logs.
(service log-cleanup-service-type
(log-cleanup-configuration
(directory "/var/log/guix/drvs")))
;; The LVM2 rules are needed as soon as LVM2 or the device-mapper is
;; used, so enable them by default. The FUSE and ALSA rules are
;; less critical, but handy.