diff options
| -rw-r--r-- | gnu/system/image.scm | 125 |
1 files changed, 116 insertions, 9 deletions
diff --git a/gnu/system/image.scm b/gnu/system/image.scm index 4b6aaf2e32..42e215f614 100644 --- a/gnu/system/image.scm +++ b/gnu/system/image.scm @@ -1,5 +1,5 @@ ;;; GNU Guix --- Functional package management for GNU -;;; Copyright © 2020 Mathieu Othacehe <m.othacehe@gmail.com> +;;; Copyright © 2020, 2021 Mathieu Othacehe <m.othacehe@gmail.com> ;;; Copyright © 2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org> ;;; ;;; This file is part of GNU Guix. @@ -36,12 +36,14 @@ #:use-module (gnu services base) #:use-module (gnu system) #:use-module (gnu system file-systems) + #:use-module (gnu system linux-container) #:use-module (gnu system uuid) #:use-module (gnu system vm) #:use-module (guix packages) #:use-module (gnu packages base) #:use-module (gnu packages bootloaders) #:use-module (gnu packages cdrom) + #:use-module (gnu packages compression) #:use-module (gnu packages disk) #:use-module (gnu packages gawk) #:use-module (gnu packages genimage) @@ -67,6 +69,7 @@ efi-disk-image iso9660-image + docker-image raw-with-offset-disk-image image-with-os @@ -74,6 +77,7 @@ qcow2-image-type iso-image-type uncompressed-iso-image-type + docker-image-type raw-with-offset-image-type image-with-label @@ -127,6 +131,10 @@ (label "GUIX_IMAGE") (flags '(boot))))))) +(define docker-image + (image + (format 'docker))) + (define* (raw-with-offset-disk-image #:optional (offset root-offset)) (image (format 'disk-image) @@ -179,6 +187,11 @@ set to the given OS." (compression? #f)) <>)))) +(define docker-image-type + (image-type + (name 'docker) + (constructor (cut image-with-os docker-image <>)))) + (define raw-with-offset-image-type (image-type (name 'raw-with-offset) @@ -220,8 +233,7 @@ set to the given OS." (define-syntax-rule (with-imported-modules* gexp* ...) (with-extensions gcrypt-sqlite3&co (with-imported-modules `(,@(source-module-closure - '((gnu build vm) - (gnu build image) + '((gnu build image) (gnu build bootloader) (gnu build hurd-boot) (gnu build linux-boot) @@ -229,8 +241,7 @@ set to the given OS." #:select? not-config?) ((guix config) => ,(make-config.scm))) #~(begin - (use-modules (gnu build vm) - (gnu build image) + (use-modules (gnu build image) (gnu build bootloader) (gnu build hurd-boot) (gnu build linux-boot) @@ -337,6 +348,8 @@ used in the image." (initializer image-root #:references-graphs '#$graph #:deduplicate? #f + #:copy-closures? (not + #$(image-shared-store? image)) #:system-directory #$os #:grub-efi #+grub-efi #:bootloader-package @@ -529,15 +542,107 @@ returns an image record where the first partition's label is set to <label>." ;; +;; Docker image. +;; + +(define* (system-docker-image image + #:key + (name "docker-image")) + "Build a docker image for IMAGE. NAME is the base name to use for the +output file." + (define boot-program + ;; Program that runs the boot script of OS, which in turn starts shepherd. + (program-file "boot-program" + #~(let ((system (cadr (command-line)))) + (setenv "GUIX_NEW_SYSTEM" system) + (execl #$(file-append guile-3.0 "/bin/guile") + "guile" "--no-auto-compile" + (string-append system "/boot"))))) + + (define shared-network? + (image-shared-network? image)) + + (let* ((os (operating-system-with-gc-roots + (containerized-operating-system + (image-operating-system image) '() + #:shared-network? + shared-network?) + (list boot-program))) + (substitutable? (image-substitutable? image)) + (register-closures? (has-guix-service-type? os)) + (schema (and register-closures? + (local-file (search-path %load-path + "guix/store/schema.sql")))) + (name (string-append name ".tar.gz")) + (graph "system-graph")) + (define builder + (with-extensions (cons guile-json-3 ;for (guix docker) + gcrypt-sqlite3&co) ;for (guix store database) + (with-imported-modules `(,@(source-module-closure + '((guix docker) + (guix store database) + (guix build utils) + (guix build store-copy) + (gnu build image)) + #:select? not-config?) + ((guix config) => ,(make-config.scm))) + #~(begin + (use-modules (guix docker) + (guix build utils) + (gnu build image) + (srfi srfi-19) + (guix build store-copy) + (guix store database)) + + ;; Set the SQL schema location. + (sql-schema #$schema) + + ;; Allow non-ASCII file names--e.g., 'nss-certs'--to be decoded. + (setenv "GUIX_LOCPATH" + #+(file-append glibc-utf8-locales "/lib/locale")) + (setlocale LC_ALL "en_US.utf8") + + (set-path-environment-variable "PATH" '("bin" "sbin") '(#+tar)) + + (let ((image-root (string-append (getcwd) "/tmp-root"))) + (mkdir-p image-root) + (initialize-root-partition image-root + #:references-graphs '(#$graph) + #:copy-closures? #f + #:register-closures? #$register-closures? + #:deduplicate? #f + #:system-directory #$os) + (build-docker-image + #$output + (cons* image-root + (map store-info-item + (call-with-input-file #$graph + read-reference-graph))) + #$os + #:entry-point '(#$boot-program #$os) + #:compressor '(#+(file-append gzip "/bin/gzip") "-9n") + #:creation-time (make-time time-utc 0 1) + #:transformations `((,image-root -> "")))))))) + + (computed-file name builder + ;; Allow offloading so that this I/O-intensive process + ;; doesn't run on the build farm's head node. + #:local-build? #f + #:options `(#:references-graphs ((,graph ,os)) + #:substitutable? ,substitutable?)))) + + +;; ;; Image creation. ;; (define (image->root-file-system image) "Return the IMAGE root partition file-system type." - (let ((format (image-format image))) - (if (eq? format 'iso9660) - "iso9660" - (partition-file-system (find-root-partition image))))) + (case (image-format image) + ((iso9660) "iso9660") + ((docker) "dummy") + (else + (partition-file-system (find-root-partition image))))) (define (root-size image) "Return the root partition size of IMAGE." @@ -671,6 +776,8 @@ image, depending on IMAGE format." #:register-closures? register-closures? #:inputs `(("system" ,os) ("bootcfg" ,bootcfg)))) + ((memq image-format '(docker)) + (system-docker-image image*)) ((memq image-format '(iso9660)) (system-iso9660-image image* |