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| | ;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2019 Jakob L. Kreuze <zerodaysfordays@sdf.org>
;;; Copyright © 2024 Herman Rimm <herman@rimm.ee>
;;;
;;; 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 tests deploy)
#:use-module (gnu packages gnupg)
#:use-module ((guix self) #:select (make-config.scm))
#:use-module (gnu services)
#:use-module (gnu services base)
#:use-module (gnu services ssh)
#:use-module (gnu system)
#:use-module (gnu system vm)
#:use-module (gnu tests)
#:use-module (guix gexp)
#:use-module (guix modules)
#:use-module (ice-9 match)
#:export (%test-deploy
%test-rollback))
;;; Commentary:
;;;
;;; Test in-place system deployment: advancing the system generation on
;;; a running instance of the Guix System.
;;;
;;; Code:
(define (machines os)
(program-file "machines.scm"
#~(list (machine (configuration
(machine-ssh-configuration
(host-name "localhost")
(system (%current-system))))
(environment managed-host-environment-type)
(operating-system #$os)))))
(define not-config?
;; Select (guix …) and (gnu …) modules, except (guix config).
(match-lambda
(('guix 'config) #f)
(('guix rest ...) #t)
(('gnu rest ...) #t)
(_ #f)))
(define* (deploy-program #:optional (os #~%simple-os))
(program-file "deploy.scm"
(with-extensions (list guile-gcrypt)
(with-imported-modules `(,@(source-module-closure
'((guix scripts deploy))
#:select? not-config?)
((guix config) => ,(make-config.scm)))
#~(begin
(use-modules (guix scripts deploy))
(guix-deploy #$(machines os)))))))
(define os
(marionette-operating-system
(simple-operating-system
(service openssh-service-type
(openssh-configuration
(permit-root-login #t)
(allow-empty-passwords? #t)))
(service static-networking-service-type
(list (static-networking
(inherit %loopback-static-networking)
(provision '(networking))))))
#:imported-modules '((gnu services herd)
(guix combinators))))
(define vm (virtual-machine os))
(define* (run-deploy-test)
"Run a test of an OS running DEPLOY-PROGRAM, which creates a new
generation of the system profile."
(define (test script)
(with-imported-modules '((gnu build marionette))
#~(begin
(use-modules (gnu build marionette)
(srfi srfi-64))
(define marionette
(make-marionette (list #$vm)))
;; Return the names of the generation symlinks on MARIONETTE.
(define (system-generations marionette)
(marionette-eval
'(begin
(use-modules (ice-9 ftw)
(srfi srfi-1))
(let* ((profile-dir "/var/guix/profiles/")
(entries (map first (cddr (file-system-tree profile-dir)))))
(remove (lambda (entry)
(member entry '("per-user" "system")))
entries)))
marionette))
(test-runner-current (system-test-runner #$output))
(test-begin "deploy")
(let ((generations-prior (system-generations marionette)))
(test-assert "script successfully evaluated"
(marionette-eval
'(primitive-load #$script)
marionette))
(test-equal "script created new generation"
(length (system-generations marionette))
(1+ (length generations-prior)))
(test-equal "script activated the new generation"
(string-append "/var/guix/profiles/system-"
(number->string (+ 1 (length generations-prior)))
"-link")
(marionette-eval '(readlink "/run/current-system")
marionette)))
(test-end))))
(gexp->derivation "deploy" (test (deploy-program))))
(define* (run-rollback-test)
"Run a test of an OS with a faulty bootloader running DEPLOY-PROGRAM,
which causes a rollback."
(define os
#~(operating-system
(inherit %simple-os)
(bootloader
(bootloader-configuration
(inherit (operating-system-bootloader
%simple-os))
(targets '("/dev/null"))))))
(define (test script)
(with-imported-modules '((gnu build marionette))
#~(begin
(use-modules (gnu build marionette)
(srfi srfi-64))
(define marionette
(make-marionette (list #$vm)))
;; Return the names of the generation symlinks on MARIONETTE.
(define (system-generations marionette)
(marionette-eval
'(begin
(use-modules (ice-9 ftw)
(srfi srfi-1))
(let* ((profile-dir "/var/guix/profiles/")
(entries (map first (cddr (file-system-tree profile-dir)))))
(remove (lambda (entry)
(member entry '("per-user" "system")))
entries)))
marionette))
(test-runner-current (system-test-runner #$output))
(test-begin "rollback")
(let ((generations-prior (system-generations marionette)))
(test-assert "script successfully evaluated"
(marionette-eval
'(primitive-load #$script)
marionette))
(test-equal "script created new generation"
(length (system-generations marionette))
(1+ (length generations-prior)))
(test-equal "script rolled back the new generation"
(string-append "/var/guix/profiles/system-"
(number->string (length generations-prior))
"-link")
(marionette-eval '(readlink "/run/current-system")
marionette)))
(test-end))))
(gexp->derivation "rollback" (test (deploy-program os))))
(define %test-deploy
(system-test
(name "deploy")
(description "Deploy to the local machine.")
(value (run-deploy-test))))
(define %test-rollback
(system-test
(name "rollback")
(description "Rollback the deployment of a faulty bootloader.")
(value (run-rollback-test))))
|