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# This file is part of cloud-init. See LICENSE file for license information.
import logging
import tempfile
from cloudinit import subp, util
from cloudinit.config.cc_bootcmd import handle, schema
from tests.unittests.helpers import (
CiTestCase,
SchemaTestCaseMixin,
mock,
skipUnlessJsonSchema,
)
from tests.unittests.util import get_cloud
LOG = logging.getLogger(__name__)
class FakeExtendedTempFile(object):
def __init__(self, suffix):
self.suffix = suffix
self.handle = tempfile.NamedTemporaryFile(
prefix="ci-%s." % self.__class__.__name__, delete=False
)
def __enter__(self):
return self.handle
def __exit__(self, exc_type, exc_value, traceback):
self.handle.close()
util.del_file(self.handle.name)
class TestBootcmd(CiTestCase):
with_logs = True
_etmpfile_path = (
"cloudinit.config.cc_bootcmd.temp_utils.ExtendedTemporaryFile"
)
def setUp(self):
super(TestBootcmd, self).setUp()
self.subp = subp.subp
self.new_root = self.tmp_dir()
def test_handler_skip_if_no_bootcmd(self):
"""When the provided config doesn't contain bootcmd, skip it."""
cfg = {}
mycloud = get_cloud()
handle("notimportant", cfg, mycloud, LOG, None)
self.assertIn(
"Skipping module named notimportant, no 'bootcmd' key",
self.logs.getvalue(),
)
def test_handler_invalid_command_set(self):
"""Commands which can't be converted to shell will raise errors."""
invalid_config = {"bootcmd": 1}
cc = get_cloud()
with self.assertRaises(TypeError) as context_manager:
handle("cc_bootcmd", invalid_config, cc, LOG, [])
self.assertIn("Failed to shellify bootcmd", self.logs.getvalue())
self.assertEqual(
"Input to shellify was type 'int'. Expected list or tuple.",
str(context_manager.exception),
)
@skipUnlessJsonSchema()
def test_handler_schema_validation_warns_non_array_type(self):
"""Schema validation warns of non-array type for bootcmd key.
Schema validation is not strict, so bootcmd attempts to shellify the
invalid content.
"""
invalid_config = {"bootcmd": 1}
cc = get_cloud()
with self.assertRaises(TypeError):
handle("cc_bootcmd", invalid_config, cc, LOG, [])
self.assertIn(
"Invalid cloud-config provided:\nbootcmd: 1 is not of type"
" 'array'",
self.logs.getvalue(),
)
self.assertIn("Failed to shellify", self.logs.getvalue())
@skipUnlessJsonSchema()
def test_handler_schema_validation_warns_non_array_item_type(self):
"""Schema validation warns of non-array or string bootcmd items.
Schema validation is not strict, so bootcmd attempts to shellify the
invalid content.
"""
invalid_config = {
"bootcmd": ["ls /", 20, ["wget", "http://stuff/blah"], {"a": "n"}]
}
cc = get_cloud()
with self.assertRaises(TypeError) as context_manager:
handle("cc_bootcmd", invalid_config, cc, LOG, [])
expected_warnings = [
"bootcmd.1: 20 is not valid under any of the given schemas",
"bootcmd.3: {'a': 'n'} is not valid under any of the given schema",
]
logs = self.logs.getvalue()
for warning in expected_warnings:
self.assertIn(warning, logs)
self.assertIn("Failed to shellify", logs)
self.assertEqual(
"Unable to shellify type 'int'. Expected list, string, tuple. "
"Got: 20",
str(context_manager.exception),
)
def test_handler_creates_and_runs_bootcmd_script_with_instance_id(self):
"""Valid schema runs a bootcmd script with INSTANCE_ID in the env."""
cc = get_cloud()
out_file = self.tmp_path("bootcmd.out", self.new_root)
my_id = "b6ea0f59-e27d-49c6-9f87-79f19765a425"
valid_config = {
"bootcmd": ["echo {0} $INSTANCE_ID > {1}".format(my_id, out_file)]
}
with mock.patch(self._etmpfile_path, FakeExtendedTempFile):
with self.allow_subp(["/bin/sh"]):
handle("cc_bootcmd", valid_config, cc, LOG, [])
self.assertEqual(
my_id + " iid-datasource-none\n", util.load_file(out_file)
)
def test_handler_runs_bootcmd_script_with_error(self):
"""When a valid script generates an error, that error is raised."""
cc = get_cloud()
valid_config = {"bootcmd": ["exit 1"]} # Script with error
with mock.patch(self._etmpfile_path, FakeExtendedTempFile):
with self.allow_subp(["/bin/sh"]):
with self.assertRaises(subp.ProcessExecutionError) as ctxt:
handle("does-not-matter", valid_config, cc, LOG, [])
self.assertIn(
"Unexpected error while running command.\nCommand: ['/bin/sh',",
str(ctxt.exception),
)
self.assertIn(
"Failed to run bootcmd module does-not-matter",
self.logs.getvalue(),
)
@skipUnlessJsonSchema()
class TestSchema(CiTestCase, SchemaTestCaseMixin):
"""Directly test schema rather than through handle."""
schema = schema
def test_duplicates_are_fine_array_array(self):
"""Duplicated commands array/array entries are allowed."""
self.assertSchemaValid(
["byebye", "byebye"], "command entries can be duplicate"
)
def test_duplicates_are_fine_array_string(self):
"""Duplicated commands array/string entries are allowed."""
self.assertSchemaValid(
["echo bye", "echo bye"], "command entries can be duplicate."
)
# vi: ts=4 expandtab
|
