01/01: tests: Add docker integration test.

[guix-commits]

dannym pushed a commit to branch wip-docker-test
in repository guix.

commit 08c5013e50a858b11ad258ab80cc1ca865f97fb4
Author: Danny Milosavljevic <address@hidden>
Date:   Fri Jan 11 16:09:00 2019 +0100

    tests: Add docker integration test.
    
    * tests/docker-inception.scm: New file.
    * Makefile.am (SCM_TESTS): Add it.
---
 Makefile.am                |   1 +
 tests/docker-inception.scm | 172 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 173 insertions(+)

diff --git a/Makefile.am b/Makefile.am
index 0590c51..ab0865f 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -395,6 +395,7 @@ SCM_TESTS =                                 \
   tests/containers.scm                         \
   tests/opam.scm                               \
   tests/pack.scm                               \
+  tests/docker-inception.scm                   \
   tests/pypi.scm                               \
   tests/import-utils.scm                       \
   tests/store-database.scm                     \
diff --git a/tests/docker-inception.scm b/tests/docker-inception.scm
new file mode 100644
index 0000000..aa654b8
--- /dev/null
+++ b/tests/docker-inception.scm
@@ -0,0 +1,172 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2019 Danny Milosavljevic <address@hidden>
+;;; Copyright © 2017 Christopher Baines <address@hidden>
+;;;
+;;; 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 (test-docker-inception)
+  #: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 bootstrap)
+  #:use-module (gnu packages docker)
+  #:use-module (guix derivations)
+  #: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 (srfi srfi-64))
+
+(define %store
+  (open-connection-for-tests))
+
+;; Globally disable grafts because they can trigger early builds.
+(%graft? #f)
+
+(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)
+  "Run tests in %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 500)
+     (disk-image-size (* 250 (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-eq "pack guest OS as docker image, load it and run it"
+            0
+            (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* ((image-id (slurp ,(string-append #$docker-cli
+                                                        "/bin/docker")
+                                        "load" "-i" ,#$docker-tarball))
+                       (_ (write image-id)))
+                (system* ,(string-append #$docker-cli "/bin/docker")
+                         "run" "-e"
+                         "GUIX_NEW_SYSTEM=/var/guix/profiles/system"
+                         "--entrypoint"
+                         "/var/guix/profiles/system/profile/bin/guile"
+                         image-id
+                         "/var/guix/profiles/system/boot")))
+             marionette))
+
+          (test-end)
+          (exit (= (test-runner-fail-count (test-runner-current)) 0)))))
+
+  (gexp->derivation "docker-test" test))
+
+(define-syntax-rule (test-assertm name store exp)
+  (test-assert name
+    (parameterize ((%store-prefix "/gnu/store"))
+    (let ((guile (package-derivation store %bootstrap-guile)))
+      (run-with-store store exp
+                      #:guile-for-build guile)))))
+
+(test-begin "docker-inception")
+
+;; The following test needs guile-sqlite3, libgcrypt, etc. as a consequence of
+;; commit c45477d2a1a651485feede20fe0f3d15aec48b39 and related changes.  Thus,
+;; run it on the user's store, if it's available, on the grounds that these
+;; dependencies may be already there, or we can get substitutes or build them
+;; quite inexpensively; see <https://bugs.gnu.org/32184>.
+
+(with-external-store store
+  (unless store (test-skip 1))
+
+  ;; FIXME
+  ;(setenv "NIX_STORE" "/gnu/store")
+;"/home/dannym/src/guix-ns13/guix/test-tmp/store"
+
+  (test-assertm "docker can load guix docker-image" store
+    (mlet* %store-monad
+        ((guile   (set-guile-for-build (default-guile)))
+         (profile (profile-derivation (packages->manifest
+                                       (list %bootstrap-guile))
+                                      #:hooks '()
+                                      #:locales? #f))
+         (tarball (docker-image "docker-pack" profile
+                                #:symlinks '(("/bin/Guile" -> "bin/guile"))
+                                #:localstatedir? #t))
+         (check (run-docker-test tarball)))
+      (built-derivations (list check)))))
+
+(test-end)
+
+;; Local Variables:
+;; eval: (put 'test-assertm 'scheme-indent-function 2)
+;; End: