diff options
Diffstat (limited to 'gnu/services/shepherd.scm')
| -rw-r--r-- | gnu/services/shepherd.scm | 67 |
1 files changed, 48 insertions, 19 deletions
diff --git a/gnu/services/shepherd.scm b/gnu/services/shepherd.scm index 1faeb350df..e2ec59f5aa 100644 --- a/gnu/services/shepherd.scm +++ b/gnu/services/shepherd.scm @@ -1,8 +1,9 @@ ;;; GNU Guix --- Functional package management for GNU -;;; Copyright © 2013, 2014, 2015, 2016, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org> +;;; Copyright © 2013, 2014, 2015, 2016, 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org> ;;; Copyright © 2017 Clément Lassieur <clement@lassieur.org> ;;; Copyright © 2018 Carlo Zancanaro <carlo@zancanaro.id.au> ;;; Copyright © 2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org> +;;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be> ;;; ;;; This file is part of GNU Guix. ;;; @@ -36,7 +37,12 @@ #:use-module (srfi srfi-26) #:use-module (srfi srfi-34) #:use-module (srfi srfi-35) - #:export (shepherd-root-service-type + #:export (shepherd-configuration + shepherd-configuration? + shepherd-configuration-shepherd + shepherd-configuration-services + + shepherd-root-service-type %shepherd-root-service shepherd-service-type @@ -76,7 +82,18 @@ ;;; Code: -(define (shepherd-boot-gexp services) +(define-record-type* <shepherd-configuration> + shepherd-configuration make-shepherd-configuration + shepherd-configuration? + (shepherd shepherd-configuration-shepherd + (default shepherd)) ; package + (services shepherd-configuration-services + (default '()))) ; list of <shepherd-service> + +(define (shepherd-boot-gexp config) + "Return a gexp starting the shepherd service." + (let ((shepherd (shepherd-configuration-shepherd config)) + (services (shepherd-configuration-services config))) #~(begin ;; Keep track of the booted system. (false-if-exception (delete-file "/run/booted-system")) @@ -95,7 +112,10 @@ ;; Start shepherd. (execl #$(file-append shepherd "/bin/shepherd") "shepherd" "--config" - #$(shepherd-configuration-file services)))) + #$(shepherd-configuration-file services shepherd))))) + +(define shepherd-packages + (compose list shepherd-configuration-shepherd)) (define shepherd-root-service-type (service-type @@ -103,39 +123,46 @@ ;; Extending the root shepherd service (aka. PID 1) happens by ;; concatenating the list of services provided by the extensions. (compose concatenate) - (extend append) + (extend (lambda (config extra-services) + (shepherd-configuration + (inherit config) + (services (append (shepherd-configuration-services config) + extra-services))))) (extensions (list (service-extension boot-service-type shepherd-boot-gexp) (service-extension profile-service-type - (const (list shepherd))))) + shepherd-packages))) + (default-value (shepherd-configuration)) (description "Run the GNU Shepherd as PID 1---i.e., the operating system's first process. The Shepherd takes care of managing services such as daemons by ensuring they are started and stopped in the right order."))) (define %shepherd-root-service - ;; The root shepherd service, aka. PID 1. Its parameter is a list of - ;; <shepherd-service> objects. - (service shepherd-root-service-type '())) + ;; The root shepherd service, aka. PID 1. Its parameter is a + ;; <shepherd-configuration>. + (service shepherd-root-service-type)) (define-syntax shepherd-service-type - (syntax-rules () + (syntax-rules (description) "Return a <service-type> denoting a simple shepherd service--i.e., the type for a service that extends SHEPHERD-ROOT-SERVICE-TYPE and nothing else. When DEFAULT is given, use it as the service's default value." - ((_ service-name proc default) + ((_ service-name proc default (description text)) (service-type (name service-name) (extensions (list (service-extension shepherd-root-service-type (compose list proc)))) - (default-value default))) - ((_ service-name proc) + (default-value default) + (description text))) + ((_ service-name proc (description text)) (service-type (name service-name) (extensions (list (service-extension shepherd-root-service-type - (compose list proc)))))))) + (compose list proc)))) + (description text))))) (define %default-imported-modules ;; Default set of modules imported for a service's consumption. @@ -268,9 +295,9 @@ stored." #~(#$name #$doc #$proc))) (shepherd-service-actions service)))))))) -(define (scm->go file) +(define (scm->go file shepherd) "Compile FILE, which contains code to be loaded by shepherd's config file, -and return the resulting '.go' file." +and return the resulting '.go' file. SHEPHERD is used as shepherd package." (let-system (system target) (with-extensions (list shepherd) (computed-file (string-append (basename (scheme-file-name file) ".scm") @@ -292,11 +319,13 @@ and return the resulting '.go' file." #:options '(#:local-build? #t #:substitutable? #f))))) -(define (shepherd-configuration-file services) - "Return the shepherd configuration file for SERVICES." +(define (shepherd-configuration-file services shepherd) + "Return the shepherd configuration file for SERVICES. SHEPHERD is used +as shepherd package." (assert-valid-graph services) - (let ((files (map shepherd-service-file services))) + (let ((files (map shepherd-service-file services)) + (scm->go (cute scm->go <> shepherd))) (define config #~(begin (use-modules (srfi srfi-34) |