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Diffstat (limited to 'gnu/system/images/wsl2.scm')
| -rw-r--r-- | gnu/system/images/wsl2.scm | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/gnu/system/images/wsl2.scm b/gnu/system/images/wsl2.scm new file mode 100644 index 0000000000..15cb4f69b8 --- /dev/null +++ b/gnu/system/images/wsl2.scm @@ -0,0 +1,170 @@ +;;; GNU Guix --- Functional package management for GNU +;;; Copyright © 2022 Alex Griffin <a@ajgrf.com> +;;; Copyright © 2022 Mathieu Othacehe <othacehe@gnu.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 system images wsl2) + #:use-module (gnu bootloader) + #:use-module (gnu image) + #:use-module (gnu packages admin) + #:use-module (gnu packages base) + #:use-module (gnu packages bash) + #:use-module (gnu packages guile) + #:use-module (gnu packages linux) + #:use-module (gnu services) + #:use-module (gnu services base) + #:use-module (gnu system) + #:use-module (gnu system image) + #:use-module (gnu system shadow) + #:use-module (guix build-system trivial) + #:use-module (guix gexp) + #:use-module (guix packages) + #:export (wsl-boot-program + wsl-os + wsl2-image)) + +(define (wsl-boot-program user) + "Program that runs the system boot script, then starts a login shell as +USER." + (program-file + "wsl-boot-program" + (with-imported-modules '((guix build syscalls)) + #~(begin + (use-modules (guix build syscalls)) + (unless (file-exists? "/run/current-system") + (let ((shepherd-socket "/var/run/shepherd/socket")) + ;; Clean up this file so we can wait for it later. + (when (file-exists? shepherd-socket) + (delete-file shepherd-socket)) + + ;; Child process boots the system and is replaced by shepherd. + (when (zero? (primitive-fork)) + (let* ((system-generation + (readlink "/var/guix/profiles/system")) + (system (readlink + (string-append + (if (absolute-file-name? system-generation) + "" + "/var/guix/profiles/") + system-generation)))) + (setenv "GUIX_NEW_SYSTEM" system) + (execl #$(file-append guile-3.0 "/bin/guile") + "guile" + "--no-auto-compile" + (string-append system "/boot")))) + + ;; Parent process waits for shepherd before continuing. + (while (not (file-exists? shepherd-socket)) + (sleep 1)))) + + (let* ((pw (getpw #$user)) + (shell (passwd:shell pw)) + (sudo #+(file-append sudo "/bin/sudo")) + (args (cdr (command-line)))) + ;; Save the value of $PATH set by WSL. Useful for finding + ;; Windows binaries to run with WSL's binfmt interop. + (setenv "WSLPATH" (getenv "PATH")) + + ;; /run is mounted with the nosuid flag by WSL. This prevents + ;; running the /run/setuid-programs. Remount it without this flag + ;; as a workaround. See: + ;; https://github.com/microsoft/WSL/issues/8716. + (mount #f "/run" #f + MS_REMOUNT + #:update-mtab? #f) + + ;; Start login shell as user. + (apply execl sudo "sudo" + "--preserve-env=WSLPATH" + "-u" #$user + "--" + shell "-l" args)))))) + +(define dummy-package + (package + (name "dummy") + (version "0") + (source #f) + (build-system trivial-build-system) + (arguments + `(#:modules ((guix build utils)) + #:target #f + #:builder (begin + (use-modules (guix build utils)) + (let* ((out (assoc-ref %outputs "out")) + (dummy (string-append out "/dummy"))) + (mkdir-p out) + (call-with-output-file dummy + (const #t)))))) + (home-page #f) + (synopsis #f) + (description #f) + (license #f))) + +(define dummy-bootloader + (bootloader + (name 'dummy-bootloader) + (package dummy-package) + (configuration-file "/dev/null") + (configuration-file-generator + (lambda (. _rest) + (plain-file "dummy-bootloader" ""))) + (installer #~(const #t)))) + +(define dummy-kernel dummy-package) + +(define (dummy-initrd . _rest) + (plain-file "dummy-initrd" "")) + +(define-public wsl-os + (operating-system + (host-name "gnu") + (timezone "Etc/UTC") + (bootloader + (bootloader-configuration + (bootloader dummy-bootloader))) + (kernel dummy-kernel) + (initrd dummy-initrd) + (initrd-modules '()) + (firmware '()) + (file-systems '()) + (users (cons* (user-account + (name "guest") + (group "users") + (supplementary-groups '("wheel")) ; allow use of sudo + (password "") + (comment "Guest of GNU")) + (user-account + (inherit %root-account) + (shell (wsl-boot-program "guest"))) + %base-user-accounts)) + (services + (list + (service guix-service-type) + (service special-files-service-type + `(("/bin/sh" ,(file-append bash "/bin/bash")) + ("/bin/mount" ,(file-append util-linux "/bin/mount")) + ("/usr/bin/env" ,(file-append coreutils "/bin/env")))))))) + +(define wsl2-image + (image + (inherit + (os->image wsl-os + #:type wsl2-image-type)) + (name 'wsl2-image))) + +wsl2-image |