From c14714cbbfe9239410aec2ed73282192a64fbbdc Mon Sep 17 00:00:00 2001 From: Christopher Baines Date: Fri, 18 Sep 2020 14:21:13 +0100 Subject: services: guix: Add guix-build-coordinator-queue-builds-service-type. * gnu/services/guix.scm (): New record type. (guix-build-coordinator-queue-builds-configuration, guix-build-coordinator-queue-builds-configuration?, guix-build-coordinator-queue-builds-configuration-package, guix-build-coordinator-queue-builds-configuration-user, guix-build-coordinator-queue-builds-coordinator, guix-build-coordinator-queue-builds-configuration-systems, guix-build-coordinator-queue-builds-configuration-system-and-targets, guix-build-coordinator-queue-builds-configuration-guix-data-service, guix-build-coordinator-queue-builds-configuration-processed-commits-file, guix-build-coordinator-queue-builds-shepherd-services, guix-build-coordinator-queue-builds-activation, guix-build-coordinator-queue-builds-account): New procedures. (guix-build-coordinator-queue-builds-service-type): New variable. * doc/guix.texi (Guix Services): Document it. --- doc/guix.texi | 45 ++++++++++++++++++++ gnu/services/guix.scm | 112 ++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 157 insertions(+) diff --git a/doc/guix.texi b/doc/guix.texi index a35b718a88..eed7bbec6e 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -27880,6 +27880,51 @@ input store items aren't already available. @end table @end deftp +The Guix Build Coordinator package contains a script to query an +instance of the Guix Data Service for derivations to build, and then +submit builds for those derivations to the coordinator. The service +type below assists in running this script. This is an additional tool +that may be useful when building derivations contained within an +instance of the Guix Data Service. + +@defvar {Scheme Variable} guix-build-coordinator-queue-builds-service-type +Service type for the +guix-build-coordinator-queue-builds-from-guix-data-service script. Its +value must be a @code{guix-build-coordinator-queue-builds-configuration} +object. +@end defvar + +@deftp {Data Type} guix-build-coordinator-queue-builds-configuration +Data type representing the options to the queue builds from guix data +service script. + +@table @asis +@item @code{package} (default: @code{guix-build-coordinator}) +The Guix Build Coordinator package to use. + +@item @code{user} (default: @code{"guix-build-coordinator-queue-builds"}) +The system user to run the service as. + +@item @code{coordinator} (default: @code{"http://localhost:8745"}) +The URI to use when connecting to the coordinator. + +@item @code{systems} (default: @code{#f}) +The systems for which to fetch derivations to build. + +@item @code{systems-and-targets} (default: @code{#f}) +An association list of system and target pairs for which to fetch +derivations to build. + +@item @code{guix-data-service} (default: @code{"https://data.guix.gnu.org"}) +The Guix Data Service instance from which to query to find out about +derivations to build. + +@item @code{processed-commits-file} (default: @code{"/var/cache/guix-build-coordinator-queue-builds/processed-commits"}) +A file to record which commits have been processed, to avoid needlessly +processing them again if the service is restarted. + +@end table +@end deftp @subsubheading Guix Data Service The @uref{http://data.guix.gnu.org,Guix Data Service} processes, stores diff --git a/gnu/services/guix.scm b/gnu/services/guix.scm index e4f5cf57b9..2b1b69589e 100644 --- a/gnu/services/guix.scm +++ b/gnu/services/guix.scm @@ -65,6 +65,18 @@ (define-module (gnu services guix) guix-build-coordinator-agent-service-type + guix-build-coordinator-queue-builds-configuration + guix-build-coordinator-queue-builds-configuration? + guix-build-coordinator-queue-builds-configuration-package + guix-build-coordinator-queue-builds-configuration-user + guix-build-coordinator-queue-builds-coordinator + guix-build-coordinator-queue-builds-configuration-systems + guix-build-coordinator-queue-builds-configuration-system-and-targets + guix-build-coordinator-queue-builds-configuration-guix-data-service + guix-build-coordinator-queue-builds-configuration-processed-commits-file + + guix-build-coordinator-queue-builds-service-type + guix-data-service-configuration guix-data-service-configuration? @@ -137,6 +149,28 @@ (define-record-type* guix-build-coordinator-agent-configuration-non-derivation-substitute-urls (default #f))) +(define-record-type* + guix-build-coordinator-queue-builds-configuration + make-guix-build-coordinator-queue-builds-configuration + guix-build-coordinator-queue-builds-configuration? + (package guix-build-coordinator-queue-builds-configuration-package + (default guix-build-coordinator)) + (user guix-build-coordinator-queue-builds-configuration-user + (default "guix-build-coordinator-queue-builds")) + (coordinator guix-build-coordinator-queue-builds-coordinator + (default "http://localhost:8745")) + (systems guix-build-coordinator-queue-builds-configuration-systems + (default #f)) + (systems-and-targets + guix-build-coordinator-queue-builds-configuration-system-and-targets + (default #f)) + (guix-data-service + guix-build-coordinator-queue-builds-configuration-guix-data-service + (default "https://data.guix.gnu.org")) + (processed-commits-file + guix-build-coordinator-queue-builds-configuration-processed-commits-file + (default "/var/cache/guix-build-coordinator-queue-builds/processed-commits"))) + (define* (make-guix-build-coordinator-start-script database-uri-string allocation-strategy pid-file @@ -360,6 +394,84 @@ (define guix-build-coordinator-agent-service-type (description "Run a Guix Build Coordinator agent."))) +(define (guix-build-coordinator-queue-builds-shepherd-services config) + (match-record config + (package user coordinator systems systems-and-targets + guix-data-service processed-commits-file) + (list + (shepherd-service + (documentation "Guix Build Coordinator queue builds from Guix Data Service") + (provision '(guix-build-coordinator-queue-builds)) + (requirement '(networking)) + (start + #~(make-forkexec-constructor + (list + #$(file-append + package + "/bin/guix-build-coordinator-queue-builds-from-guix-data-service") + #$(string-append "--coordinator=" coordinator) + #$@(map (lambda (system) + (string-append "--system=" system)) + (or systems '())) + #$@(map (match-lambda + ((system . target) + (string-append "--system-and-target=" system "=" target))) + (or systems-and-targets '())) + #$@(if guix-data-service + #~(#$(string-append "--guix-data-service=" guix-data-service)) + #~()) + #$@(if processed-commits-file + #~(#$(string-append "--processed-commits-file=" + processed-commits-file)) + #~())) + #:user #$user + #:pid-file "/var/run/guix-build-coordinator-queue-builds/pid" + #:environment-variables + `(,(string-append + "GUIX_LOCPATH=" #$glibc-utf8-locales "/lib/locale") + "LC_ALL=en_US.utf8") + #:log-file "/var/log/guix-build-coordinator/queue-builds.log")) + (stop #~(make-kill-destructor)))))) + +(define (guix-build-coordinator-queue-builds-activation config) + #~(begin + (use-modules (guix build utils)) + + (mkdir-p "/var/log/guix-build-coordinator") + + ;; Allow writing the PID file + (mkdir-p "/var/run/guix-build-coordinator-queue-builds") + (chown "/var/run/guix-build-coordinator-queue-builds" + (passwd:uid %user) + (passwd:gid %user)))) + +(define (guix-build-coordinator-queue-builds-account config) + (list (user-account + (name (guix-build-coordinator-queue-builds-configuration-user config)) + (group "nogroup") + (system? #t) + (comment "Guix Build Coordinator queue-builds user") + (home-directory "/var/empty") + (shell (file-append shadow "/sbin/nologin"))))) + +(define guix-build-coordinator-queue-builds-service-type + (service-type + (name 'guix-build-coordinator-queue-builds) + (extensions + (list + (service-extension shepherd-root-service-type + guix-build-coordinator-queue-builds-shepherd-services) + (service-extension activation-service-type + guix-build-coordinator-queue-builds-activation) + (service-extension account-service-type + guix-build-coordinator-queue-builds-account))) + (description + "Run the guix-build-coordinator-queue-builds-from-guix-data-service +script. + +This is a script to assist in having the Guix Build Coordinator build +derivations stored in an instance of the Guix Data Service."))) + ;;; ;;; Guix Data Service -- cgit v1.2.3