services: guix: Generalize extensions.

* gnu/services/base.scm (<guix-extension>): New record type.
(guix-extension-merge): New procedure.
(guix-service-type): Honor extensions.
* doc/guix.texi (Base Services): Document it.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>
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terramorpha 2022-04-11 00:30:07 -04:00 committed by Ludovic Courtès
parent 8918ce6d16
commit fcad622648
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2 changed files with 57 additions and 6 deletions

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@ -103,6 +103,7 @@ Copyright @copyright{} 2022 Remco van 't Veer@*
Copyright @copyright{} 2022 Aleksandr Vityazev@*
Copyright @copyright{} 2022 Philip M@sup{c}Grath@*
Copyright @copyright{} 2022 Karl Hallsby@*
Copyright @copyright{} 2022 Justin Veilleux@*
Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.3 or
@ -17729,6 +17730,25 @@ A directory path where the @command{guix-daemon} will perform builds.
@end table
@end deftp
@deftp {Data Type} guix-extension
This data type represents the parameters of the Guix build daemon that
are extendable. This is the type of the object that must be used within
a guix service extension.
@xref{Service Composition}, for more information.
@table @asis
@item @code{authorized-keys} (default: @code{'()})
A list of file-like objects where each element contains a public key.
@item @code{substitute-urls} (default: @code{'()})
A list of strings where each element is a substitute URL.
@item @code{chroot-directories} (default: @code{'()})
A list of file-like objects or strings pointing to additional directories the build daemon can use.
@end table
@end deftp
@deffn {Scheme Procedure} udev-service [#:udev @var{eudev} #:rules @code{'()}]
Run @var{udev}, which populates the @file{/dev} directory dynamically.
udev rules can be provided as a list of files through the @var{rules}

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@ -17,6 +17,7 @@
;;; Copyright © 2021 Hui Lu <luhuins@163.com>
;;; Copyright © 2021, 2022 Maxim Cournoyer <maxim.cournoyer@gmail.com>
;;; Copyright © 2022 Guillaume Le Vaillant <glv@posteo.net>
;;; Copyright © 2022 Justin Veilleux <terramorpha@cock.li>
;;;
;;; This file is part of GNU Guix.
;;;
@ -187,6 +188,12 @@ (define-module (gnu services base)
guix-configuration-extra-options
guix-configuration-log-file
guix-extension
guix-extension?
guix-extension-authorized-keys
guix-extension-substitute-urls
guix-extension-chroot-directories
guix-service-type
guix-publish-configuration
guix-publish-configuration?
@ -1768,6 +1775,25 @@ (define (guix-activation config)
(substitute-key-authorization authorized-keys guix)
#~#f))))
(define-record-type* <guix-extension>
guix-extension make-guix-extension
guix-extension?
(authorized-keys guix-extension-authorized-keys ;list of file-like
(default '()))
(substitute-urls guix-extension-substitute-urls ;list of strings
(default '()))
(chroot-directories guix-extension-chroot-directories ;list of file-like/strings
(default '())))
(define (guix-extension-merge a b)
(guix-extension
(authorized-keys (append (guix-extension-authorized-keys a)
(guix-extension-authorized-keys b)))
(substitute-urls (append (guix-extension-substitute-urls a)
(guix-extension-substitute-urls b)))
(chroot-directories (append (guix-extension-chroot-directories a)
(guix-extension-chroot-directories b)))))
(define guix-service-type
(service-type
(name 'guix)
@ -1778,14 +1804,19 @@ (define guix-service-type
(service-extension profile-service-type
(compose list guix-configuration-guix))))
;; Extensions can specify extra directories to add to the build chroot.
(compose concatenate)
(extend (lambda (config directories)
;; Extensions can specify extra directories to add to the build chroot,
;; extra substitute urls and extra authorized keys
(compose (lambda (args) (fold guix-extension-merge (guix-extension) args)))
(extend (lambda (config extension)
(guix-configuration
(inherit config)
(authorized-keys (append (guix-extension-authorized-keys extension)
(guix-configuration-authorized-keys config)))
(substitute-urls (append (guix-extension-substitute-urls extension)
(guix-configuration-substitute-urls config)))
(chroot-directories
(append (guix-configuration-chroot-directories config)
directories)))))
(append (guix-extension-chroot-directories extension)
(guix-configuration-chroot-directories config))))))
(default-value (guix-configuration))
(description
@ -1801,7 +1832,7 @@ (define-record-type* <guix-publish-configuration>
(default 80))
(host guix-publish-configuration-host ;string
(default "localhost"))
(advertise? guix-publish-advertise? ;boolean
(advertise? guix-publish-advertise? ;boolean
(default #f))
(compression guix-publish-configuration-compression
(thunked)