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# This file is part of cloud-init. See LICENSE file for license information.
import logging
import os
import stat
from unittest.mock import patch
from cloudinit import helpers, subp, util
from cloudinit.config.cc_runcmd import handle, schema
from tests.unittests.helpers import (
CiTestCase,
FilesystemMockingTestCase,
SchemaTestCaseMixin,
skipUnlessJsonSchema,
)
from tests.unittests.util import get_cloud
LOG = logging.getLogger(__name__)
class TestRuncmd(FilesystemMockingTestCase):
with_logs = True
def setUp(self):
super(TestRuncmd, self).setUp()
self.subp = subp.subp
self.new_root = self.tmp_dir()
self.patchUtils(self.new_root)
self.paths = helpers.Paths({"scripts": self.new_root})
def test_handler_skip_if_no_runcmd(self):
"""When the provided config doesn't contain runcmd, skip it."""
cfg = {}
mycloud = get_cloud(paths=self.paths)
handle("notimportant", cfg, mycloud, LOG, None)
self.assertIn(
"Skipping module named notimportant, no 'runcmd' key",
self.logs.getvalue(),
)
@patch("cloudinit.util.shellify")
def test_runcmd_shellify_fails(self, cls):
"""When shellify fails throw exception"""
cls.side_effect = TypeError("patched shellify")
valid_config = {"runcmd": ["echo 42"]}
cc = get_cloud(paths=self.paths)
with self.assertRaises(TypeError) as cm:
with self.allow_subp(["/bin/sh"]):
handle("cc_runcmd", valid_config, cc, LOG, None)
self.assertIn("Failed to shellify", str(cm.exception))
def test_handler_invalid_command_set(self):
"""Commands which can't be converted to shell will raise errors."""
invalid_config = {"runcmd": 1}
cc = get_cloud(paths=self.paths)
with self.assertRaises(TypeError) as cm:
handle("cc_runcmd", invalid_config, cc, LOG, [])
self.assertIn(
"Failed to shellify 1 into file"
" /var/lib/cloud/instances/iid-datasource-none/scripts/runcmd",
str(cm.exception),
)
@skipUnlessJsonSchema()
def test_handler_schema_validation_warns_non_array_type(self):
"""Schema validation warns of non-array type for runcmd key.
Schema validation is not strict, so runcmd attempts to shellify the
invalid content.
"""
invalid_config = {"runcmd": 1}
cc = get_cloud(paths=self.paths)
with self.assertRaises(TypeError) as cm:
handle("cc_runcmd", invalid_config, cc, LOG, [])
self.assertIn(
"Invalid config:\nruncmd: 1 is not of type 'array'",
self.logs.getvalue(),
)
self.assertIn("Failed to shellify", str(cm.exception))
@skipUnlessJsonSchema()
def test_handler_schema_validation_warns_non_array_item_type(self):
"""Schema validation warns of non-array or string runcmd items.
Schema validation is not strict, so runcmd attempts to shellify the
invalid content.
"""
invalid_config = {
"runcmd": ["ls /", 20, ["wget", "http://stuff/blah"], {"a": "n"}]
}
cc = get_cloud(paths=self.paths)
with self.assertRaises(TypeError) as cm:
handle("cc_runcmd", invalid_config, cc, LOG, [])
expected_warnings = [
"runcmd.1: 20 is not valid under any of the given schemas",
"runcmd.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", str(cm.exception))
def test_handler_write_valid_runcmd_schema_to_file(self):
"""Valid runcmd schema is written to a runcmd shell script."""
valid_config = {"runcmd": [["ls", "/"]]}
cc = get_cloud(paths=self.paths)
handle("cc_runcmd", valid_config, cc, LOG, [])
runcmd_file = os.path.join(
self.new_root,
"var/lib/cloud/instances/iid-datasource-none/scripts/runcmd",
)
self.assertEqual("#!/bin/sh\n'ls' '/'\n", util.load_file(runcmd_file))
file_stat = os.stat(runcmd_file)
self.assertEqual(0o700, stat.S_IMODE(file_stat.st_mode))
@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(
[["echo", "bye"], ["echo", "bye"]],
"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
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