mirror of
https://git.in.rschanz.org/ryan77627/guix.git
synced 2024-12-24 13:28:12 -05:00
services: Add 'sysctl-service-type'.
* gnu/services/sysctl.scm: New file. * doc/guix.texi (Miscellaneous Services): Document it. * gnu/local.mk (GNU_SYSTEM_MODULES): Add it.
This commit is contained in:
parent
a522517cdb
commit
296bf4d5ab
3 changed files with 107 additions and 0 deletions
|
@ -15276,6 +15276,35 @@ Package object of thermald.
|
|||
@node Miscellaneous Services
|
||||
@subsubsection Miscellaneous Services
|
||||
|
||||
@cindex sysctl
|
||||
@subsubheading System Control Service
|
||||
|
||||
The @code{(gnu services sysctl)} provides a service to configure kernel
|
||||
parameters at boot.
|
||||
|
||||
@defvr {Scheme Variable} sysctl-service-type
|
||||
The service type for @command{sysctl}, which modifies kernel parameters
|
||||
under @file{/proc/sys/}. To enable IPv4 forwarding, it can be
|
||||
instantiated as:
|
||||
|
||||
@example
|
||||
(service sysctl-service-type
|
||||
(sysctl-configuration
|
||||
(settings '(("net.ipv4.ip_forward" . "1")))))
|
||||
@end example
|
||||
@end defvr
|
||||
|
||||
@deftp {Data Type} sysctl-configuration
|
||||
The data type representing the configuration of @command{sysctl}.
|
||||
|
||||
@table @asis
|
||||
@item @code{sysctl} (default: @code{(file-append procps "/sbin/sysctl"})
|
||||
The @command{sysctl} executable to use.
|
||||
|
||||
@item @code{settings} (default: @code{'()})
|
||||
An association list specifies kernel parameters and their values.
|
||||
@end table
|
||||
@end deftp
|
||||
|
||||
@cindex lirc
|
||||
@subsubheading Lirc Service
|
||||
|
|
|
@ -444,6 +444,7 @@ GNU_SYSTEM_MODULES = \
|
|||
%D%/services/sddm.scm \
|
||||
%D%/services/spice.scm \
|
||||
%D%/services/ssh.scm \
|
||||
%D%/services/sysctl.scm \
|
||||
%D%/services/version-control.scm \
|
||||
%D%/services/vpn.scm \
|
||||
%D%/services/web.scm \
|
||||
|
|
77
gnu/services/sysctl.scm
Normal file
77
gnu/services/sysctl.scm
Normal file
|
@ -0,0 +1,77 @@
|
|||
;;; GNU Guix --- Functional package management for GNU
|
||||
;;; Copyright © 2017 Sou Bunnbu <iyzsong@member.fsf.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 the GNU General Public License
|
||||
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
(define-module (gnu services sysctl)
|
||||
#:use-module (gnu services)
|
||||
#:use-module (gnu services shepherd)
|
||||
#:use-module (gnu packages linux)
|
||||
#:use-module (guix gexp)
|
||||
#:use-module (guix records)
|
||||
#:use-module (srfi srfi-1)
|
||||
#:use-module (ice-9 match)
|
||||
#:export (sysctl-configuration
|
||||
sysctl-service-type))
|
||||
|
||||
|
||||
;;;
|
||||
;;; System Control Service.
|
||||
;;;
|
||||
|
||||
(define-record-type* <sysctl-configuration>
|
||||
sysctl-configuration make-sysctl-configuration?
|
||||
sysctl-configuration?
|
||||
(sysctl sysctl-configuration-sysctl ; path of the 'sysctl' command
|
||||
(default (file-append procps "/sbin/sysctl")))
|
||||
(settings sysctl-configuration-settings ; alist of string pairs
|
||||
(default '())))
|
||||
|
||||
(define (sysctl-configuration-settings->sysctl.conf settings)
|
||||
"Return a file for @command{sysctl} to set kernel parameters as specified by
|
||||
@var{settings}."
|
||||
(apply mixed-text-file "sysctl.conf"
|
||||
(append-map (match-lambda
|
||||
((key . value)
|
||||
(list key "=" value "\n")))
|
||||
settings)))
|
||||
|
||||
(define sysctl-shepherd-service
|
||||
(match-lambda
|
||||
(($ <sysctl-configuration> sysctl settings)
|
||||
(let ((sysctl.conf
|
||||
(sysctl-configuration-settings->sysctl.conf settings)))
|
||||
(shepherd-service
|
||||
(documentation "Configure kernel parameters at boot.")
|
||||
(provision '(sysctl))
|
||||
(start #~(lambda _
|
||||
(zero? (system* #$sysctl "--load" #$sysctl.conf))))
|
||||
(stop #~(const #t))
|
||||
(respawn? #f))))))
|
||||
|
||||
(define sysctl-service-type
|
||||
(service-type
|
||||
(name 'sysctl)
|
||||
(extensions
|
||||
(list (service-extension shepherd-root-service-type
|
||||
(compose list sysctl-shepherd-service))))
|
||||
(compose concatenate)
|
||||
(extend (lambda (config settings)
|
||||
(sysctl-configuration
|
||||
(inherit config)
|
||||
(settings (append (sysctl-configuration-settings config)
|
||||
settings)))))
|
||||
(default-value (sysctl-configuration))))
|
Loading…
Reference in a new issue