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# This list is used to avoid multiple name/email instances of the same
# contributors reported by "git log" and "git shortlog" commands.

Adriano Peluso <catonano@gmail.com>
Al McElrath <hello@yrns.org> <hello@atonesir.com>
Alex Sassmannshausen <alex@pompo.co> <alex.sassmannshausen@gmail.com>
Alexander I. Grafov <grafov@gmail.com>
Alírio Eyng <alirioeyng@gmail.com>
Amin Bandali <bandali@gnu.org> <mab@gnu.org>
Amirouche Boubekki <amirouche@hypermove.net>
Andreas Enge <andreas@enge.fr> <andreas.enge@inria.fr>
Andreas Enge <andreas@enge.fr> <privat@xobs-novena>
Andy Wingo <wingo@igalia.com> <wingo@pobox.com>
Ben Woodcroft <donttrustben@gmail.com>
Ben Woodcroft <donttrustben@gmail.com> <b.woodcroft@uq.edu.au>
Ben Woodcroft <donttrustben@gmail.com> <donttrustben near gmail.com>
Brett Gilio <brettg@gnu.org> <brettg@posteo.net>
Claes Wallin (韋嘉誠) <claes.wallin@greatsinodevelopment.com>
Cyprien Nicolas <cyprien@nicolas.tf> <c.nicolas+gitorious@gmail.com>
Daniel Pimentel <d4n1@d4n1.org> <d4n1@member.fsf.org>
Danny Milosavljevic <dannym@scratchpost.org> <dannym+a@scratchpost.org>
David Hashe <david.hashe@dhashe.com> <address@hidden>
David Thompson <davet@gnu.org> <dthompson2@worcester.edu>
David Thompson <davet@gnu.org> <dthompson@member.fsf.org>
David Thompson <davet@gnu.org> <dthompson@vistahigherlearning.com>
Deck Pickard <deck.r.pickard@gmail.com> <nebu@kipple>
Eric Bavier <bavier@member.fsf.org> <ericbavier@gmail.com>
Eric Bavier <bavier@member.fsf.org> <bavier@posteo.net>
Eric Dvorsak <eric@dvorsak.fr> <yenda1@gmail.com>
George Clemmer <myglc2@gmail.com>
ison <ison@airmail.cc> <ison111@protonmail.com>
Ivan Vilata i Balaguer <ivan@selidor.net>
Jakob L. Kreuze <zerodaysfordays@sdf.org> <zerodaysfordays@sdf.lonestar.org>
Jeff Mickey <j@codemac.net> <jm@igneous.io>
John Darrington <jmd@gnu.org> <john@darrington.wattle.id.au>
John J. Foerch <jjfoerch@earthlink.net>
Joshua Grant <tadni@riseup.net> <gzg@riseup.net>
Joshua Grant <tadni@riseup.net> <jgrant@parenthetical.io>
Joshua Grant <tadni@riseup.net> <tadnimi@gmail.com>
Joshua Grant <tadni@riseup.net> <youlysses@riseup.net>
Kei Kebreau <kei@openmailbox.org> <kkebreau@posteo.net>
Leo Famulari <leo@famulari.name> <lfamular@gmail.com>
Ludovic Courtès <ludo@gnu.org> <ludovic.courtes@inria.fr>
Marek Benc <dusxmt@gmx.com> <merkur32@gmail.com>
Marius Bakke <mbakke@fastmail.com> <m.bakke@warwick.ac.uk>
Mathieu Lirzin <mthl@gnu.org> <mthl@openmailbox.org>
Mathieu Lirzin <mthl@gnu.org> <mathieu.lirzin@openmailbox.org>
Mathieu Othacehe <m.othacehe@gmail.com>
Mathieu Othacehe <mathieu.othacehe@parrot.com>
Mathieu Othacehe <othacehe@gnu.org>
Nikita Karetnikov <nikita@karetnikov.org> <nikita.karetnikov@gmail.com>
nikita <nikita@n0.is>
nikita <nikita@n0.is> ng0 <ng0@n0.is>
nikita <nikita@n0.is> Nils Gillmann <ng0@n0.is>
nikita <nikita@n0.is> Nils Gillmann <gillmann@infotropique.org>
nikita <nikita@n0.is> ng0 <ng0@crash.cx>
nikita <nikita@n0.is> <ng0@infotropique.org>
nikita <nikita@n0.is> <ng0@no-reply.infotropique.org>
nikita <nikita@n0.is> <ng0@no-reply.pragmatique.xyz>
nikita <nikita@n0.is> <ng0@pragmatique.xyz>
nikita <nikita@n0.is> <contact.ng0@cryptolab.net>
nikita <nikita@n0.is> <ng0@we.make.ritual.n0.is>
nikita <nikita@n0.is> <ngillmann@runbox.com>
nikita <nikita@n0.is> <niasterisk@grrlz.net>
nikita <nikita@n0.is> <ng@niasterisk.space>
nikita <nikita@n0.is> <ng0@libertad.pw>
Pierre Neidhardt <mail@ambrevar.xyz>
Pierre-Antoine Rouby <pierre-antoine.rouby@inria.fr>
Pjotr Prins <pjotr.guix@thebird.nl> <pjotr.public01@thebird.nl>
Pjotr Prins <pjotr.guix@thebird.nl> <pjotr.public12@thebird.nl>
Pjotr Prins <pjotr.guix@thebird.nl> <pjotr.public12@email>
Raimon Grau <raimonster@gmail.com> <raimon@3scale.net>
Raoul Jean Pierre Bonnal <ilpuccio.febo@gmail.com>
Raymond Nicholson <rain1@openmailbox.org>
Rene Saavedra <rennes@openmailbox.org>
Ricardo Wurmus <rekado@elephly.net>
Ricardo Wurmus <rekado@elephly.net> <ricardo.wurmus@mdc-berlin.de>
Sou Bunnbu (宋文武) <iyzsong@gmail.com>
Sou Bunnbu (宋文武) <iyzsong@gmail.com> <iyzsong@member.fsf.org>
Stefan Reichör <stefan@xsteve.at>
Taylan Ulrich Bayırlı/Kammer <taylanbayirli@gmail.com>
Theodoros Foradis <theodoros.for@openmailbox.org> <theodoros@foradis.org>
Thomas Danckaert <thomas.danckaert@gmail.com> <post@thomasdanckaert.be>
Tobias Geerinckx-Rice <me@tobias.gr> <tobias.geerinckx.rice@gmail.com>
Tomáš Čech <sleep_walker@gnu.org> <sleep_walker@suse.cz>
Vincent Legoll <vincent.legoll@gmail.com> <vincent.legoll@idgrilles.fr>
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2019 Danny Milosavljevic <dannym@scratchpost.org>
;;; Copyright © 2019, 2020 Ludovic Courtès <ludo@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 tests docker)
  #:use-module (gnu tests)
  #:use-module (gnu system)
  #:use-module (gnu system file-systems)
  #:use-module (gnu system vm)
  #:use-module (gnu services)
  #:use-module (gnu services dbus)
  #:use-module (gnu services networking)
  #:use-module (gnu services docker)
  #:use-module (gnu services desktop)
  #:use-module (gnu packages docker)
  #:use-module (gnu packages guile)
  #:use-module (guix gexp)
  #:use-module (guix grafts)
  #:use-module (guix monads)
  #:use-module (guix packages)
  #:use-module (guix profiles)
  #:use-module (guix scripts pack)
  #:use-module (guix store)
  #:use-module (guix tests)
  #:use-module (guix build-system trivial)
  #:use-module ((guix licenses) #:prefix license:)
  #:export (%test-docker
            %test-docker-system))

(define %docker-os
  (simple-operating-system
   (service dhcp-client-service-type)
   (dbus-service)
   (polkit-service)
   (service elogind-service-type)
   (service docker-service-type)))

(define (run-docker-test docker-tarball)
  "Load DOCKER-TARBALL as Docker image and run it in a Docker container,
inside %DOCKER-OS."
  (define os
    (marionette-operating-system
     %docker-os
     #:imported-modules '((gnu services herd)
                          (guix combinators))))

  (define vm
    (virtual-machine
     (operating-system os)
     (memory-size 700)
     (disk-image-size (* 1500 (expt 2 20)))
     (port-forwardings '())))

  (define test
    (with-imported-modules '((gnu build marionette))
      #~(begin
          (use-modules (srfi srfi-11) (srfi srfi-64)
                       (gnu build marionette))

          (define marionette
            (make-marionette (list #$vm)))

          (mkdir #$output)
          (chdir #$output)

          (test-begin "docker")

          (test-assert "service running"
            (marionette-eval
             '(begin
                (use-modules (gnu services herd))
                (match (start-service 'dockerd)
                  (#f #f)
                  (('service response-parts ...)
                   (match (assq-ref response-parts 'running)
                     ((pid) (number? pid))))))
             marionette))

          (test-eq "fetch version"
            0
            (marionette-eval
             `(begin
                (system* ,(string-append #$docker-cli "/bin/docker")
                         "version"))
             marionette))

          (test-equal "Load docker image and run it"
            '("hello world" "hi!" "JSON!" #o1777)
            (marionette-eval
             `(begin
                (define slurp
                  (lambda args
                    (let* ((port (apply open-pipe* OPEN_READ args))
                           (output (read-line port))
                           (status (close-pipe port)))
                      output)))
                (let* ((raw-line (slurp ,(string-append #$docker-cli
                                                        "/bin/docker")
                                                        "load" "-i"
                                                        ,#$docker-tarball))
                       (repository&tag (string-drop raw-line
                                                    (string-length
                                                     "Loaded image: ")))
                       (response1 (slurp
                                   ,(string-append #$docker-cli "/bin/docker")
                                   "run" "--entrypoint" "bin/Guile"
                                   repository&tag
                                   "/aa.scm"))
                       (response2 (slurp          ;default entry point
                                   ,(string-append #$docker-cli "/bin/docker")
                                   "run" repository&tag
                                   "-c" "(display \"hi!\")"))

                       ;; Check whether (json) is in $GUILE_LOAD_PATH.
                       (response3 (slurp    ;default entry point + environment
                                   ,(string-append #$docker-cli "/bin/docker")
                                   "run" repository&tag
                                   "-c" "(use-modules (json))
  (display (json-string->scm (scm->json-string \"JSON!\")))"))

                       ;; Check whether /tmp exists.
                       (response4 (slurp
                                   ,(string-append #$docker-cli "/bin/docker")
                                   "run" repository&tag "-c"
                                   "(display (stat:perms (lstat \"/tmp\")))")))
                  (list response1 response2 response3
                        (string->number response4))))
             marionette))

          (test-end)
          (exit (= (test-runner-fail-count (test-runner-current)) 0)))))

  (gexp->derivation "docker-test" test))

(define (build-tarball&run-docker-test)
  (mlet* %store-monad
      ((_ (set-grafting #f))
       (guile (set-guile-for-build (default-guile)))
       (guest-script-package ->
        (package
          (name "guest-script")
          (version "0")
          (source #f)
          (build-system trivial-build-system)
          (arguments `(#:guile ,guile-3.0
                       #:builder
                       (let ((out (assoc-ref %outputs "out")))
                         (mkdir out)
                         (call-with-output-file (string-append out "/a.scm")
                           (lambda (port)
                             (display "(display \"hello world\n\")" port)))
                         #t)))
          (synopsis "Display hello world using Guile")
          (description "This package displays the text \"hello world\" on the
standard output device and then enters a new line.")
          (home-page #f)
          (license license:public-domain)))
       (profile (profile-derivation (packages->manifest
                                     (list guile-3.0 guile-json-3
                                           guest-script-package))
                                    #:hooks '()
                                    #:locales? #f))
       (tarball (docker-image "docker-pack" profile
                              #:symlinks '(("/bin/Guile" -> "bin/guile")
                                           ("aa.scm" -> "a.scm"))
                              #:entry-point "bin/guile"
                              #:localstatedir? #t)))
    (run-docker-test tarball)))

(define %test-docker
  (system-test
   (name "docker")
   (description "Test Docker container of Guix.")
   (value (build-tarball&run-docker-test))))


(define (run-docker-system-test tarball)
  "Load DOCKER-TARBALL as Docker image and run it in a Docker container,
inside %DOCKER-OS."
  (define os
    (marionette-operating-system
     %docker-os
     #:imported-modules '((gnu services herd)
                          (guix combinators))))

  (define vm
    (virtual-machine
     (operating-system os)
     ;; FIXME: Because we're using the volatile-root setup where the root file
     ;; system is a tmpfs overlaid over a small root file system, 'docker
     ;; load' must be able to store the whole image into memory, hence the
     ;; huge memory requirements.  We should avoid the volatile-root setup
     ;; instead.
     (memory-size 3500)
     (port-forwardings '())))

  (define test
    (with-imported-modules '((gnu build marionette)
                             (guix build utils))
      #~(begin
          (use-modules (srfi srfi-11) (srfi srfi-64)
                       (gnu build marionette)
                       (guix build utils))

          (define marionette
            (make-marionette (list #$vm)))

          (mkdir #$output)
          (chdir #$output)

          (test-begin "docker")

          (test-assert "service running"
            (marionette-eval
             '(begin
                (use-modules (gnu services herd))
                (match (start-service 'dockerd)
                  (#f #f)
                  (('service response-parts ...)
                   (match (assq-ref response-parts 'running)
                     ((pid) (number? pid))))))
             marionette))

          (test-assert "load system image and run it"
            (marionette-eval
             `(begin
                (define (slurp command . args)
                  ;; Return the output from COMMAND.
                  (let* ((port (apply open-pipe* OPEN_READ command args))
                         (output (read-line port))
                         (status (close-pipe port)))
                    output))

                (define (docker-cli command . args)
                  ;; Run the given Docker COMMAND.
                  (apply invoke #$(file-append docker-cli "/bin/docker")
                         command args))

                (define (wait-for-container-file container file)
                  ;; Wait for FILE to show up in CONTAINER.
                  (docker-cli "exec" container
                              #$(file-append guile-3.0 "/bin/guile")
                              "-c"
                              (object->string
                               `(let loop ((n 15))
                                  (when (zero? n)
                                    (error "file didn't show up" ,file))
                                  (unless (file-exists? ,file)
                                    (sleep 1)
                                    (loop (- n 1)))))))

                (let* ((line (slurp #$(file-append docker-cli "/bin/docker")
                                    "load" "-i" #$tarball))
                       (repository&tag (string-drop line
                                                    (string-length
                                                     "Loaded image: ")))
                       (container (slurp
                                   #$(file-append docker-cli "/bin/docker")
                                   "create" repository&tag)))
                  (docker-cli "start" container)

                  ;; Wait for shepherd to be ready.
                  (wait-for-container-file container
                                           "/var/run/shepherd/socket")

                  (docker-cli "exec" container
                              "/run/current-system/profile/bin/herd"
                              "status")
                  (slurp #$(file-append docker-cli "/bin/docker")
                         "exec" container
                         "/run/current-system/profile/bin/herd"
                         "status" "guix-daemon")))
             marionette))

          (test-end)
          (exit (= (test-runner-fail-count (test-runner-current)) 0)))))

  (gexp->derivation "docker-system-test" test))

(define %test-docker-system
  (system-test
   (name "docker-system")
   (description "Run a system image as produced by @command{guix system
docker-image} inside Docker.")
   (value (with-monad %store-monad
            (>>= (system-docker-image (simple-operating-system))
                 run-docker-system-test)))))