Add nspawn test to boot-and-services autopkgtest

debian/changelog

@@ -5,6 +5,7 @@ systemd (215-7) UNRELEASED; urgency=medium
   * Add boot-and-services autopkgtest: Check booting with systemd-sysv and
     that the most crucial services behave as expected.
   * logind autopkgtest: Fix stderr output in waiting loop for scsi_debug.
+  * Add nspawn test to boot-and-services autopkgtest.
 
   [ Jon Severinsson]
   * Add /run/shm -> /dev/shm symlink in debian/tmpfiles.d/debian.conf. This

debian/tests/boot-and-services

@@ -7,6 +7,8 @@ import sys
 import os
 import unittest
 import subprocess
+import tempfile
+import shutil
 
 
 class ServicesTest(unittest.TestCase):
@@ -99,6 +101,44 @@ class JournalTest(unittest.TestCase):
         self.assertNotIn(b'systemd:', out)
 
 
+class NspawnTest(unittest.TestCase):
+    '''Check nspawn'''
+
+    @classmethod
+    def setUpClass(kls):
+        '''Build a bootable busybox mini-container'''
+
+        kls.td_c_busybox = tempfile.TemporaryDirectory(prefix='c_busybox.')
+        kls.c_busybox = kls.td_c_busybox.name
+        for d in ['etc/init.d', 'bin', 'sbin']:
+            os.makedirs(os.path.join(kls.c_busybox, d))
+        shutil.copy('/bin/busybox', os.path.join(kls.c_busybox, 'bin'))
+        shutil.copy('/etc/os-release', os.path.join(kls.c_busybox, 'etc'))
+        os.symlink('busybox', os.path.join(kls.c_busybox, 'bin', 'sh'))
+        os.symlink('../bin/busybox', os.path.join(kls.c_busybox, 'sbin/init'))
+        with open(os.path.join(kls.c_busybox, 'etc/init.d/rcS'), 'w') as f:
+            f.write('''#!/bin/sh
+echo fake container started
+ps aux
+poweroff\n''')
+            os.fchmod(f.fileno(), 0o755)
+
+    def setUp(self):
+        self.workdir = tempfile.TemporaryDirectory()
+
+    def test_boot(self):
+        cont = os.path.join(self.workdir.name, 'c1')
+        shutil.copytree(self.c_busybox, cont, symlinks=True)
+        shutil.copytree(self.c_busybox, '/tmp/cont', symlinks=True)
+        out = subprocess.check_output(['systemd-nspawn', '-D', cont, '-b'],
+                                      timeout=60, stderr=subprocess.STDOUT)
+        self.assertIn(b'Spawning container c1', out)
+        self.assertIn(b'fake container started', out)
+        self.assertRegex(out, b'\n\s+1\s+0\s+init[\r\n]')
+        self.assertRegex(out, b'\n\s+2+\s+0\s.*rcS[\r\n]')
+        self.assertRegex(out, b'Container c1.*shut down')
+
+
 def boot_with_systemd():
     '''Reboot with systemd as init
 

debian/tests/control

@@ -9,5 +9,5 @@ Tests: python3
 Depends: python3-systemd
 
 Tests: boot-and-services
-Depends: lightdm, cron, network-manager
+Depends: lightdm, cron, network-manager, busybox-static
 Restrictions: needs-root, isolation-machine, needs-recommends, breaks-testbed