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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2016 Jan Nieuwenhuizen <janneke@gnu.org>
;;; Copyright © 2016 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of thye GNU General Public License
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (gnu services admin)
#:use-module (gnu packages admin)
#:use-module (gnu packages base)
#:use-module (gnu services)
#:use-module (gnu services mcron)
#:use-module (gnu services shepherd)
#:use-module (guix gexp)
#:use-module (guix packages)
#:use-module (guix records)
#:use-module (srfi srfi-1)
#:export (%default-rotations
%rotated-files
rottlog-configuration
rottlog-configuration?
rottlog-service
rottlog-service-type))
;;; Commentary:
;;;
;;; This module implements configuration of rottlog by writing
;;; /etc/rottlog/{rc,hourly|daily|weekly}. Example usage
;;;
;;; (mcron-service)
;;; (service rottlog-service-type (rottlog-configuration))
;;;
;;; Code:
(define %rotated-files
;; Syslog files subject to rotation.
'("/var/log/messages" "/var/log/secure" "/var/log/maillog"))
(define (syslog-rotation-config files)
#~(string-append #$(string-join files ",")
" {
sharedscripts
postrotate
" #$coreutils "/bin/kill -HUP $(cat /var/run/syslog.pid) 2> /dev/null
endscript
}
"))
(define (simple-rotation-config files)
#~(string-append #$(string-join files ",") " {
sharedscripts
}
"))
(define %default-rotations
`(("weekly"
,(computed-file "rottlog.weekly"
#~(call-with-output-file #$output
(lambda (port)
(display #$(syslog-rotation-config %rotated-files)
port)
(display #$(simple-rotation-config
'("/var/log/shepherd.log"
"/var/log/guix-daemon.log"))
port)))))))
(define (default-jobs rottlog)
(list #~(job '(next-hour '(0)) ;midnight
(lambda ()
(system* #$(file-append rottlog "/sbin/rottlog"))))
#~(job '(next-hour '(12)) ;noon
(lambda ()
(system* #$(file-append rottlog "/sbin/rottlog"))))))
(define-record-type* <rottlog-configuration>
rottlog-configuration make-rottlog-configuration
rottlog-configuration?
(rottlog rottlog-rottlog ;package
(default rottlog))
(rc-file rottlog-rc-file ;file-like
(default (file-append rottlog "/etc/rc")))
(periodic-rotations rottlog-periodic-rotations ;list of (name file) tuples
(default %default-rotations))
(jobs rottlog-jobs ;list of <mcron-job>
(default #f)))
(define (rottlog-etc config)
`(("rottlog" ,(file-union "rottlog"
(cons `("rc" ,(rottlog-rc-file config))
(rottlog-periodic-rotations config))))))
(define (rottlog-jobs-or-default config)
(or (rottlog-jobs config)
(default-jobs (rottlog-rottlog config))))
(define rottlog-service-type
(service-type
(name 'rottlog)
(extensions (list (service-extension etc-service-type rottlog-etc)
(service-extension mcron-service-type
rottlog-jobs-or-default)
;; Add Rottlog to the global profile so users can access
;; the documentation.
(service-extension profile-service-type
(compose list rottlog-rottlog))))))
;;; admin.scm ends here
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