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# This file is part of cloud-init. See LICENSE file for license information.
import copy
import os
from cloudinit import safeyaml, stages, util
from cloudinit.config.modules import Modules
from cloudinit.settings import PER_INSTANCE
from tests.unittests import helpers
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},
"distro": "ubuntu",
},
"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 = 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 = 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 = 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 = 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 = 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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