summary refs log tree commit diff
path: root/gnu/tests/virtualization.scm
blob: 60789fbb5b7def5dc580a4c15149b54ee93b01eb (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2017 Christopher Baines <mail@cbaines.net>
;;; Copyright © 2020-2022 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
;;; Copyright © 2021 Pierre Langlois <pierre.langlois@gmx.com>
;;; Copyright © 2022 Marius Bakke <marius@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 virtualization)
  #:use-module (gnu tests)
  #:use-module (gnu image)
  #:use-module (gnu system)
  #:use-module (gnu system file-systems)
  #:use-module (gnu system image)
  #:use-module (gnu system images hurd)
  #:use-module (gnu system vm)
  #:use-module (gnu services)
  #:use-module (gnu services dbus)
  #:use-module (gnu services networking)
  #:use-module (gnu services virtualization)
  #:use-module (gnu packages ssh)
  #:use-module (gnu packages virtualization)
  #:use-module (guix gexp)
  #:use-module (guix records)
  #:use-module (guix store)
  #:export (%test-libvirt
            %test-qemu-guest-agent
            %test-childhurd))


;;;
;;; Libvirt.
;;;

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

(define (run-libvirt-test)
  "Run tests in %LIBVIRT-OS."
  (define os
    (marionette-operating-system
     %libvirt-os
     #:imported-modules '((gnu services herd)
                          (guix combinators))))

  (define vm
    (virtual-machine
     (operating-system os)
     (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)))

          (test-runner-current (system-test-runner #$output))
          (test-begin "libvirt")

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

          (test-eq "fetch version"
            0
            (marionette-eval
             `(begin
                (chdir "/tmp")
                (system* ,(string-append #$libvirt "/bin/virsh")
                         "-c" "qemu:///system" "version"))
             marionette))

          (test-eq "connect"
            0
            (marionette-eval
             `(begin
                (chdir "/tmp")
                (system* ,(string-append #$libvirt "/bin/virsh")
                         "-c" "qemu:///system" "connect"))
             marionette))

          (test-eq "create default network"
            0
            (marionette-eval
             '(begin
                (chdir "/tmp")
                (system* #$(file-append libvirt "/bin/virsh")
                         "-c" "qemu:///system" "net-define"
                         #$(file-append libvirt
                                        "/etc/libvirt/qemu/networks/default.xml")))
             marionette))

          (test-eq "start default network"
            0
            (marionette-eval
             '(begin
                (chdir "/tmp")
                (system* #$(file-append libvirt "/bin/virsh")
                         "-c" "qemu:///system" "net-start" "default"))
             marionette))

          (test-end))))

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

(define %test-libvirt
  (system-test
   (name "libvirt")
   (description "Connect to the running LIBVIRT service.")
   (value (run-libvirt-test))))


;;;
;;; QEMU Guest Agent service.
;;;

(define %qemu-guest-agent-os
  (simple-operating-system
   (service qemu-guest-agent-service-type)))

(define (run-qemu-guest-agent-test)
  "Run tests in %QEMU-GUEST-AGENT-OS."
  (define os
    (marionette-operating-system
     %qemu-guest-agent-os
     #:imported-modules '((gnu services herd))))

  (define vm
    (virtual-machine
     (operating-system os)
     (port-forwardings '())))

  (define test
    (with-imported-modules '((gnu build marionette))
      #~(begin
          (use-modules (gnu build marionette)
                       (ice-9 rdelim)
                       (srfi srfi-64))

          (define marionette
            ;; Ensure we look for the socket in the correct place below.
            (make-marionette (list #$vm) #:socket-directory "/tmp"))

          (define* (try-read port #:optional (attempts 10))
            ;; Try reading from a port several times before giving up.
            (cond ((char-ready? port)
                   (let ((response (read-line port)))
                     (close-port port)
                     response))
                  ((> attempts 1)
                   (sleep 1)
                   (try-read port (- attempts 1)))
                  (else "")))

          (define (run command)
            ;; Run a QEMU guest agent command and return the response.
            (let ((s (socket PF_UNIX SOCK_STREAM 0)))
              (connect s AF_UNIX "/tmp/qemu-ga")
              (display command s)
              (try-read s)))

          (test-runner-current (system-test-runner #$output))
          (test-begin "qemu-guest-agent")

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

          (test-equal "ping guest"
            "{\"return\": {}}"
            (run "{\"execute\": \"guest-ping\"}"))

          (test-assert "get network interfaces"
            (string-contains
             (run "{\"execute\": \"guest-network-get-interfaces\"}")
             "127.0.0.1"))

          (test-end))))

  (gexp->derivation "qemu-guest-agent-test" test))

(define %test-qemu-guest-agent
  (system-test
   (name "qemu-guest-agent")
   (description "Run commands in a virtual machine using QEMU guest agent.")
   (value (run-qemu-guest-agent-test))))


;;;
;;; GNU/Hurd virtual machines, aka. childhurds.
;;;

;; Copy of `hurd-vm-disk-image', using plain disk-image for test
(define (hurd-vm-disk-image-raw config)
  (let ((os ((@@ (gnu services virtualization) secret-service-operating-system)
             (hurd-vm-configuration-os config)))
        (disk-size (hurd-vm-configuration-disk-size config)))
    (system-image
     (image
      (inherit hurd-disk-image)
      (format 'disk-image)
      (size disk-size)
      (operating-system os)))))

(define %childhurd-os
  (simple-operating-system
   (service dhcp-client-service-type)
   (service hurd-vm-service-type
            (hurd-vm-configuration
             (image (hurd-vm-disk-image-raw this-record))))))

(define (run-childhurd-test)
  (define os
    (marionette-operating-system
     %childhurd-os
     #:imported-modules '((gnu services herd)
                          (guix combinators))))

  (define vm
    (virtual-machine
     (operating-system os)
     (memory-size (* 1024 3))))

  (define (run-command-over-ssh . command)
    ;; Program that runs COMMAND over SSH and prints the result on standard
    ;; output.
    (let ()
      (define run
        (with-extensions (list guile-ssh)
          #~(begin
              (use-modules (ssh session)
                           (ssh auth)
                           (ssh popen)
                           (ice-9 match)
                           (ice-9 textual-ports))

              (let ((session (make-session #:user "root"
                                           #:port 10022
                                           #:host "localhost"
                                           #:log-verbosity 'rare)))
                (match (connect! session)
                  ('ok
                   (userauth-password! session "")
                   (display
                    (get-string-all
                     (open-remote-input-pipe* session #$@command))))
                  (status
                   (error "could not connect to childhurd over SSH"
                          session status)))))))

      (program-file "run-command-over-ssh" run)))

  (define test
    (with-imported-modules '((gnu build marionette))
      #~(begin
          (use-modules (gnu build marionette)
                       (srfi srfi-64)
                       (ice-9 match))

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

          (test-runner-current (system-test-runner #$output))
          (test-begin "childhurd")

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

          (test-equal "childhurd SSH server replies"
            "SSH"
            ;; Check from within the guest whether its childhurd's SSH
            ;; server is reachable.  Do that from the guest: port forwarding
            ;; to the host won't work because QEMU listens on 127.0.0.1.
            (marionette-eval
             '(begin
                (use-modules (ice-9 match))

                (let loop ((n 60))
                  (if (zero? n)
                      'all-attempts-failed
                      (let ((s (socket PF_INET SOCK_STREAM 0))
                            (a (make-socket-address AF_INET
                                                    INADDR_LOOPBACK
                                                    10022)))
                        (format #t "connecting to childhurd SSH server...~%")
                        (connect s a)
                        (match (get-string-n s 3)
                          ((? eof-object?)
                           (close-port s)
                           (sleep 1)
                           (loop (- n 1)))
                          (str
                           (close-port s)
                           str))))))
             marionette))

          (test-equal "SSH up and running"
            "childhurd GNU\n"

            ;; Connect from the guest to the chidhurd over SSH and run the
            ;; 'uname' command.
            (marionette-eval
             '(begin
                (use-modules (ice-9 popen))

                (get-string-all
                 (open-input-pipe #$(run-command-over-ssh "uname" "-on"))))
             marionette))

          (test-assert "guix-daemon up and running"
            (let ((drv (marionette-eval
                        '(begin
                           (use-modules (ice-9 popen))

                           (get-string-all
                            (open-input-pipe
                             #$(run-command-over-ssh "guix" "build" "coreutils"
                                                     "--no-grafts" "-d"))))
                        marionette)))
              ;; We cannot compare the .drv with (raw-derivation-file
              ;; coreutils) on the host: they may differ due to fixed-output
              ;; derivations and changes introduced compared to the 'guix'
              ;; package snapshot.
              (and (string-suffix? ".drv"
                                   (pk 'drv (string-trim-right drv)))
                   drv)))

          (test-end))))

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

(define %test-childhurd
  (system-test
   (name "childhurd")
   (description
    "Connect to the GNU/Hurd virtual machine service, aka. a childhurd, making
sure that the childhurd boots and runs its SSH server.")
   (value (run-childhurd-test))))