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#!/usr/bin/python3
# autopkgtest check: enable/disable/configure units
# (C) 2015 Canonical Ltd.
# Author: Martin Pitt <martin.pitt@ubuntu.com>
import unittest
import subprocess
import os
import sys
import tempfile
from glob import glob
system_unit_dir = subprocess.check_output(
['pkg-config', '--variable=systemdsystemunitdir', 'systemd'],
universal_newlines=True).strip()
systemd_sysv_install = os.path.join(os.path.dirname(system_unit_dir),
'systemd-sysv-install')
class EnableTests(unittest.TestCase):
def tearDown(self):
# remove all traces from our test unit
f = glob(system_unit_dir + '/test_enable*.service')
f += glob(system_unit_dir + '/*/test_enable*.service')
f += glob('/etc/systemd/system/test_enable*.service')
f += glob('/etc/systemd/system/*/test_enable*.service')
f += glob('/etc/init.d/test_enable*')
f += glob('/etc/rc?.d/???test_enable*')
[os.unlink(i) for i in f]
subprocess.check_call(['systemctl', 'daemon-reload'])
def create_unit(self, suffix='', enable=False):
'''Create a test unit'''
unit = os.path.join(system_unit_dir,
'test_enable%s.service' % suffix)
with open(unit, 'w') as f:
f.write('''[Unit]
Description=Testsuite unit %s
[Service]
ExecStart=/bin/echo hello
[Install]
WantedBy=multi-user.target
''' % suffix)
if enable:
os.symlink(unit, '/etc/systemd/system/multi-user.target.wants/' +
os.path.basename(unit))
return unit
def create_sysv(self, suffix='', enable=False):
'''Create a test SysV script'''
script = '/etc/init.d/test_enable%s' % suffix
with open(script, 'w') as f:
f.write('''/bin/sh
### BEGIN INIT INFO
# Provides: test_enable%s
# Required-Start: $remote_fs $syslog
# Required-Stop: $remote_fs $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Testsuite script%s
### END INIT INFO
echo hello
''' % (suffix, suffix))
os.chmod(script, 0o755)
if enable:
subprocess.check_call(
[systemd_sysv_install, 'enable', os.path.basename(script)])
def assertEnabled(self, enabled, unit='test_enable.service'):
'''assert that given unit has expected state'''
systemctl = subprocess.Popen(['systemctl', 'is-enabled', unit],
stdout=subprocess.PIPE,
universal_newlines=True)
out = systemctl.communicate()[0].strip()
if enabled:
self.assertEqual(systemctl.returncode, 0)
self.assertEqual(out, 'enabled')
else:
self.assertEqual(systemctl.returncode, 1)
self.assertEqual(out, 'disabled')
def test_unit_enable(self):
'''no sysv: enable unit'''
self.create_unit()
self.assertEnabled(False)
# also works without .service suffix
self.assertEnabled(False, unit='test_enable')
subprocess.check_call(['systemctl', 'enable', 'test_enable'])
self.assertEnabled(True)
# also works without .service suffix
self.assertEnabled(True, unit='test_enable')
l = '/etc/systemd/system/multi-user.target.wants/test_enable.service'
self.assertTrue(os.path.islink(l))
self.assertTrue(os.readlink(l) == system_unit_dir + '/test_enable.service' or
os.readlink(l) == '../test_enable.service')
# enable should be idempotent
subprocess.check_call(['systemctl', 'enable', 'test_enable.service'])
self.assertEnabled(True)
def test_unit_disable(self):
'''no sysv: disable unit'''
self.create_unit(enable=True)
self.assertEnabled(True)
# also works without .service suffix
self.assertEnabled(True, unit='test_enable')
subprocess.check_call(['systemctl', 'disable', 'test_enable'])
self.assertEnabled(False)
# also works without .service suffix
self.assertEnabled(False, unit='test_enable')
l = '/etc/systemd/system/multi-user.target.wants/test_enable.service'
self.assertFalse(os.path.islink(l))
# disable should be idempotent
subprocess.check_call(['systemctl', 'disable', 'test_enable.service'])
self.assertEnabled(False)
def test_unit_sysv_enable(self):
'''with sysv: enable unit'''
self.create_unit()
self.create_sysv()
self.assertEnabled(False)
# also works without .service suffix
self.assertEnabled(False, unit='test_enable')
subprocess.check_call(['systemctl', 'enable', 'test_enable'])
self.assertEnabled(True)
# also works without .service suffix
self.assertEnabled(True, unit='test_enable')
l = '/etc/systemd/system/multi-user.target.wants/test_enable.service'
self.assertTrue(os.path.islink(l))
self.assertTrue(os.readlink(l) == system_unit_dir + '/test_enable.service' or
os.readlink(l) == '../test_enable.service')
# enabled the sysv script
l = glob('/etc/rc2.d/S??test_enable')
self.assertEqual(len(l), 1, 'expect one symlink in %s' % repr(l))
self.assertEqual(os.readlink(l[0]), '../init.d/test_enable')
# enable should be idempotent
subprocess.check_call(['systemctl', 'enable', 'test_enable.service'])
self.assertEnabled(True)
def test_unit_sysv_disable(self):
'''with sysv: disable unit'''
self.create_unit(enable=True)
self.create_sysv(enable=True)
self.assertEnabled(True)
# also works without .service suffix
self.assertEnabled(True, unit='test_enable')
subprocess.check_call(['systemctl', 'disable', 'test_enable'])
self.assertEnabled(False)
# also works without .service suffix
self.assertEnabled(False, unit='test_enable')
l = '/etc/systemd/system/multi-user.target.wants/test_enable.service'
self.assertFalse(os.path.islink(l))
# disabled the sysv script
l = glob('/etc/rc2.d/S??test_enable')
self.assertEqual(l, [])
# disable should be idempotent
subprocess.check_call(['systemctl', 'enable', 'test_enable.service'])
self.assertEnabled(True)
def test_unit_alias_enable(self):
'''no sysv: enable unit with an alias'''
u = self.create_unit()
with open(u, 'a') as f:
f.write('Alias=test_enablea.service\n')
self.assertEnabled(False)
subprocess.check_call(['systemctl', 'enable', 'test_enable'])
self.assertEnabled(True)
# enablement symlink
l = '/etc/systemd/system/multi-user.target.wants/test_enable.service'
self.assertTrue(os.path.islink(l))
self.assertTrue(os.readlink(l) == system_unit_dir + '/test_enable.service' or
os.readlink(l) == '../test_enable.service')
# alias symlink
l = '/etc/systemd/system/test_enablea.service'
self.assertTrue(os.path.islink(l))
self.assertTrue(os.readlink(l) == system_unit_dir + '/test_enable.service' or
os.readlink(l) == 'test_enable.service')
def test_unit_alias_disable(self):
'''no sysv: disable unit with an alias'''
u = self.create_unit()
with open(u, 'a') as f:
f.write('Alias=test_enablea.service\n')
os.symlink(system_unit_dir + '/test_enable.service',
'/etc/systemd/system/test_enablea.service')
subprocess.check_call(['systemctl', 'disable', 'test_enable'])
self.assertEnabled(False)
# enablement symlink
l = '/etc/systemd/system/multi-user.target.wants/test_enable.service'
self.assertFalse(os.path.islink(l))
# alias symlink
l = '/etc/systemd/system/test_enablea.service'
self.assertFalse(os.path.islink(l))
def test_unit_sysv_alias_enable(self):
'''with sysv: enable unit with an alias'''
u = self.create_unit()
with open(u, 'a') as f:
f.write('Alias=test_enablea.service\n')
self.create_sysv()
self.assertEnabled(False)
subprocess.check_call(['systemctl', 'enable', 'test_enable'])
# enablement symlink
l = '/etc/systemd/system/multi-user.target.wants/test_enable.service'
self.assertTrue(os.path.islink(l))
self.assertTrue(os.readlink(l) == system_unit_dir + '/test_enable.service' or
os.readlink(l) == '../test_enable.service')
# alias symlink
l = '/etc/systemd/system/test_enablea.service'
self.assertTrue(os.path.islink(l))
self.assertTrue(os.readlink(l) == system_unit_dir + '/test_enable.service' or
os.readlink(l) == 'test_enable.service')
# enabled the sysv script
l = glob('/etc/rc2.d/S??test_enable')
self.assertEqual(len(l), 1, 'expect one symlink in %s' % repr(l))
self.assertEqual(os.readlink(l[0]), '../init.d/test_enable')
self.assertEnabled(True)
def test_unit_sysv_alias_disable(self):
'''with sysv: disable unit with an alias'''
u = self.create_unit(enable=True)
with open(u, 'a') as f:
f.write('Alias=test_enablea.service\n')
os.symlink(system_unit_dir + '/test_enable.service',
'/etc/systemd/system/test_enablea.service')
self.create_sysv(enable=True)
subprocess.check_call(['systemctl', 'disable', 'test_enable'])
# enablement symlink
l = '/etc/systemd/system/multi-user.target.wants/test_enable.service'
self.assertFalse(os.path.islink(l))
# alias symlink
l = '/etc/systemd/system/test_enablea.service'
self.assertFalse(os.path.islink(l))
# disabled the sysv script
l = glob('/etc/rc2.d/S??test_enable')
self.assertEqual(l, [])
self.assertEnabled(False)
def test_sysv_enable(self):
'''only sysv: enable'''
self.create_sysv()
subprocess.check_call(['systemctl', 'enable', 'test_enable'])
# enabled the sysv script
l = glob('/etc/rc2.d/S??test_enable')
self.assertEqual(len(l), 1, 'expect one symlink in %s' % repr(l))
self.assertEqual(os.readlink(l[0]), '../init.d/test_enable')
# enable should be idempotent
subprocess.check_call(['systemctl', 'enable', 'test_enable'])
self.assertEnabled(True)
def test_sysv_disable(self):
'''only sysv: disable'''
self.create_sysv(enable=True)
subprocess.check_call(['systemctl', 'disable', 'test_enable'])
# disabled the sysv script
l = glob('/etc/rc2.d/S??test_enable')
self.assertEqual(l, [])
# disable should be idempotent
subprocess.check_call(['systemctl', 'disable', 'test_enable'])
self.assertEnabled(False)
def test_unit_link(self):
'''systemctl link'''
with tempfile.NamedTemporaryFile(suffix='.service') as f:
f.write(b'[Unit]\n')
f.flush()
subprocess.check_call(['systemctl', 'link', f.name])
unit = os.path.basename(f.name)
l = os.path.join('/etc/systemd/system', unit)
self.assertEqual(os.readlink(l), f.name)
# disable it again
subprocess.check_call(['systemctl', 'disable', unit])
# this should also remove the unit symlink
self.assertFalse(os.path.islink(l))
def test_unit_enable_full_path(self):
'''systemctl enable a unit in a non-default path'''
with tempfile.NamedTemporaryFile(suffix='.service') as f:
f.write(b'''[Unit]
Description=test
[Service]
ExecStart=/bin/true
[Install]
WantedBy=multi-user.target''')
f.flush()
unit = os.path.basename(f.name)
# now enable it
subprocess.check_call(['systemctl', 'enable', f.name])
self.assertEnabled(True, unit=unit)
l = os.path.join('/etc/systemd/system', unit)
self.assertEqual(os.readlink(l), f.name)
enable_l = '/etc/systemd/system/multi-user.target.wants/' + unit
self.assertTrue(os.readlink(enable_l) == f.name or
os.readlink(enable_l) == '../' + unit)
# disable it again
subprocess.check_call(['systemctl', 'disable', unit])
# self.assertEnabled(False) does not work as now systemd does not
# know about the unit at all any more
self.assertFalse(os.path.islink(enable_l))
# this should also remove the unit symlink
self.assertFalse(os.path.islink(l))
if __name__ == '__main__':
unittest.main(testRunner=unittest.TextTestRunner(stream=sys.stdout,
verbosity=2))
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