services: rottlog: More convenient default options for <log-rotation>.

* gnu/services/admin.scm (%default-log-rotation-options): New variable.
(%default-rotations): Use it.
* gnu/services/cuirass.scm (cuirass-log-rotations): Likewise.
* doc/guix.texi (Log Rotation): Adjust accordingly.
This commit is contained in:
Ludovic Courtès 2022-07-31 23:35:27 +02:00
parent 4de445f3da
commit 7d0ebc467f
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3 changed files with 18 additions and 10 deletions

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@ -40,6 +40,7 @@
log-rotation-files
log-rotation-options
log-rotation-post-rotate
%default-log-rotation-options
rottlog-configuration
rottlog-configuration?
@ -82,7 +83,12 @@
(post-rotate log-rotation-post-rotate ;#f | gexp
(default #f))
(options log-rotation-options ;list of strings
(default '())))
(default %default-log-rotation-options)))
(define %default-log-rotation-options
;; Default log rotation options: append ".gz" to file names.
'("storefile @FILENAME.@COMP_EXT"
"notifempty"))
(define %rotated-files
;; Syslog files subject to rotation.
@ -94,20 +100,20 @@
(files %rotated-files)
(frequency 'weekly)
(options '(;; These files are worth keeping for a few weeks.
(options `(;; These files are worth keeping for a few weeks.
"rotate 16"
;; Run post-rotate once per rotation
"sharedscripts"
;; Append .gz to rotated files
"storefile @FILENAME.@COMP_EXT"))
,@%default-log-rotation-options))
;; Restart syslogd after rotation.
(post-rotate #~(let ((pid (call-with-input-file "/var/run/syslog.pid"
read)))
(kill pid SIGHUP))))
(log-rotation
(files '("/var/log/guix-daemon.log"))
(options '("rotate 4" ;don't keep too many of them
"storefile @FILENAME.@COMP_EXT")))))
(options `("rotate 4" ;don't keep too many of them
,@%default-log-rotation-options)))))
(define (log-rotation->config rotation)
"Return a string-valued gexp representing the rottlog configuration snippet