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# This file is part of cloud-init. See LICENSE file for license information.
import copy
import os
from cloudinit.settings import PER_INSTANCE
from cloudinit import safeyaml
from cloudinit import stages
from cloudinit.tests import helpers
from cloudinit import util
class TestSimpleRun(helpers.FilesystemMockingTestCase):
with_logs = True
def setUp(self):
super(TestSimpleRun, self).setUp()
self.new_root = self.tmp_dir()
self.replicateTestRoot('simple_ubuntu', self.new_root)
# Seed cloud.cfg file for our tests
self.cfg = {
'datasource_list': ['None'],
'runcmd': ['ls /etc'], # test ALL_DISTROS
'spacewalk': {}, # test non-ubuntu distros module definition
'system_info': {'paths': {'run_dir': self.new_root}},
'write_files': [
{
'path': '/etc/blah.ini',
'content': 'blah',
'permissions': 0o755,
},
],
'cloud_init_modules': ['write-files', 'spacewalk', 'runcmd'],
}
cloud_cfg = safeyaml.dumps(self.cfg)
util.ensure_dir(os.path.join(self.new_root, 'etc', 'cloud'))
util.write_file(os.path.join(self.new_root, 'etc',
'cloud', 'cloud.cfg'), cloud_cfg)
self.patchOS(self.new_root)
self.patchUtils(self.new_root)
def test_none_ds_populates_var_lib_cloud(self):
"""Init and run_section default behavior creates appropriate dirs."""
# Now start verifying whats created
initer = stages.Init()
initer.read_cfg()
initer.initialize()
self.assertTrue(os.path.exists("/var/lib/cloud"))
for d in ['scripts', 'seed', 'instances', 'handlers', 'sem', 'data']:
self.assertTrue(os.path.isdir(os.path.join("/var/lib/cloud", d)))
initer.fetch()
iid = initer.instancify()
self.assertEqual(iid, 'iid-datasource-none')
initer.update()
self.assertTrue(os.path.islink("var/lib/cloud/instance"))
def test_none_ds_runs_modules_which_do_not_define_distros(self):
"""Any modules which do not define a distros attribute are run."""
initer = stages.Init()
initer.read_cfg()
initer.initialize()
initer.fetch()
initer.instancify()
initer.update()
initer.cloudify().run('consume_data', initer.consume_data,
args=[PER_INSTANCE], freq=PER_INSTANCE)
mods = stages.Modules(initer)
(which_ran, failures) = mods.run_section('cloud_init_modules')
self.assertTrue(len(failures) == 0)
self.assertTrue(os.path.exists('/etc/blah.ini'))
self.assertIn('write-files', which_ran)
contents = util.load_file('/etc/blah.ini')
self.assertEqual(contents, 'blah')
self.assertNotIn(
"Skipping modules ['write-files'] because they are not verified on"
" distro 'ubuntu'",
self.logs.getvalue())
def test_none_ds_skips_modules_which_define_unmatched_distros(self):
"""Skip modules which define distros which don't match the current."""
initer = stages.Init()
initer.read_cfg()
initer.initialize()
initer.fetch()
initer.instancify()
initer.update()
initer.cloudify().run('consume_data', initer.consume_data,
args=[PER_INSTANCE], freq=PER_INSTANCE)
mods = stages.Modules(initer)
(which_ran, failures) = mods.run_section('cloud_init_modules')
self.assertTrue(len(failures) == 0)
self.assertIn(
"Skipping modules 'spacewalk' because they are not verified on"
" distro 'ubuntu'",
self.logs.getvalue())
self.assertNotIn('spacewalk', which_ran)
def test_none_ds_runs_modules_which_distros_all(self):
"""Skip modules which define distros attribute as supporting 'all'.
This is done in the module with the declaration:
distros = [ALL_DISTROS]. runcmd is an example.
"""
initer = stages.Init()
initer.read_cfg()
initer.initialize()
initer.fetch()
initer.instancify()
initer.update()
initer.cloudify().run('consume_data', initer.consume_data,
args=[PER_INSTANCE], freq=PER_INSTANCE)
mods = stages.Modules(initer)
(which_ran, failures) = mods.run_section('cloud_init_modules')
self.assertTrue(len(failures) == 0)
self.assertIn('runcmd', which_ran)
self.assertNotIn(
"Skipping modules 'runcmd' because they are not verified on"
" distro 'ubuntu'",
self.logs.getvalue())
def test_none_ds_forces_run_via_unverified_modules(self):
"""run_section forced skipped modules by using unverified_modules."""
# re-write cloud.cfg with unverified_modules override
cfg = copy.deepcopy(self.cfg)
cfg['unverified_modules'] = ['spacewalk'] # Would have skipped
cloud_cfg = safeyaml.dumps(cfg)
util.ensure_dir(os.path.join(self.new_root, 'etc', 'cloud'))
util.write_file(os.path.join(self.new_root, 'etc',
'cloud', 'cloud.cfg'), cloud_cfg)
initer = stages.Init()
initer.read_cfg()
initer.initialize()
initer.fetch()
initer.instancify()
initer.update()
initer.cloudify().run('consume_data', initer.consume_data,
args=[PER_INSTANCE], freq=PER_INSTANCE)
mods = stages.Modules(initer)
(which_ran, failures) = mods.run_section('cloud_init_modules')
self.assertTrue(len(failures) == 0)
self.assertIn('spacewalk', which_ran)
self.assertIn(
"running unverified_modules: 'spacewalk'",
self.logs.getvalue())
def test_none_ds_run_with_no_config_modules(self):
"""run_section will report no modules run when none are configured."""
# re-write cloud.cfg with unverified_modules override
cfg = copy.deepcopy(self.cfg)
# Represent empty configuration in /etc/cloud/cloud.cfg
cfg['cloud_init_modules'] = None
cloud_cfg = safeyaml.dumps(cfg)
util.ensure_dir(os.path.join(self.new_root, 'etc', 'cloud'))
util.write_file(os.path.join(self.new_root, 'etc',
'cloud', 'cloud.cfg'), cloud_cfg)
initer = stages.Init()
initer.read_cfg()
initer.initialize()
initer.fetch()
initer.instancify()
initer.update()
initer.cloudify().run('consume_data', initer.consume_data,
args=[PER_INSTANCE], freq=PER_INSTANCE)
mods = stages.Modules(initer)
(which_ran, failures) = mods.run_section('cloud_init_modules')
self.assertTrue(len(failures) == 0)
self.assertEqual([], which_ran)
# vi: ts=4 expandtab
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