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# This file is part of cloud-init. See LICENSE file for license information.
from logging import Logger
from unittest import mock
import pytest
from cloudinit.config.cc_grub_dpkg import fetch_idevs, handle
from cloudinit.config.schema import (
SchemaValidationError,
get_schema,
validate_cloudconfig_schema,
)
from cloudinit.subp import ProcessExecutionError
from tests.unittests.helpers import does_not_raise, skipUnlessJsonSchema
class TestFetchIdevs:
"""Tests cc_grub_dpkg.fetch_idevs()"""
# Note: udevadm info returns devices in a large single line string
@pytest.mark.parametrize(
"grub_output,path_exists,expected_log_call,udevadm_output"
",expected_idevs",
[
# Inside a container, grub not installed
(
ProcessExecutionError(reason=FileNotFoundError()),
False,
mock.call("'grub-probe' not found in $PATH"),
"",
"",
),
# Inside a container, grub installed
(
ProcessExecutionError(stderr="failed to get canonical path"),
False,
mock.call("grub-probe 'failed to get canonical path'"),
"",
"",
),
# KVM Instance
(
["/dev/vda"],
True,
None,
(
"/dev/disk/by-path/pci-0000:00:00.0 ",
"/dev/disk/by-path/virtio-pci-0000:00:00.0 ",
),
"/dev/vda",
),
# Xen Instance
(
["/dev/xvda"],
True,
None,
"",
"/dev/xvda",
),
# NVMe Hardware Instance
(
["/dev/nvme1n1"],
True,
None,
(
"/dev/disk/by-id/nvme-Company_hash000 ",
"/dev/disk/by-id/nvme-nvme.000-000-000-000-000 ",
"/dev/disk/by-path/pci-0000:00:00.0-nvme-0 ",
),
"/dev/disk/by-id/nvme-Company_hash000",
),
# SCSI Hardware Instance
(
["/dev/sda"],
True,
None,
(
"/dev/disk/by-id/company-user-1 ",
"/dev/disk/by-id/scsi-0Company_user-1 ",
"/dev/disk/by-path/pci-0000:00:00.0-scsi-0:0:0:0 ",
),
"/dev/disk/by-id/company-user-1",
),
],
)
@mock.patch("cloudinit.config.cc_grub_dpkg.util.logexc")
@mock.patch("cloudinit.config.cc_grub_dpkg.os.path.exists")
@mock.patch("cloudinit.config.cc_grub_dpkg.subp.subp")
def test_fetch_idevs(
self,
m_subp,
m_exists,
m_logexc,
grub_output,
path_exists,
expected_log_call,
udevadm_output,
expected_idevs,
):
"""Tests outputs from grub-probe and udevadm info against grub-dpkg"""
m_subp.side_effect = [grub_output, ["".join(udevadm_output)]]
m_exists.return_value = path_exists
log = mock.Mock(spec=Logger)
idevs = fetch_idevs(log)
assert expected_idevs == idevs
if expected_log_call is not None:
assert expected_log_call in log.debug.call_args_list
class TestHandle:
"""Tests cc_grub_dpkg.handle()"""
@pytest.mark.parametrize(
"cfg_idevs,cfg_idevs_empty,fetch_idevs_output,expected_log_output",
[
(
# No configuration
None,
None,
"/dev/disk/by-id/nvme-Company_hash000",
(
"Setting grub debconf-set-selections with ",
"'/dev/disk/by-id/nvme-Company_hash000','false'",
),
),
(
# idevs set, idevs_empty unset
"/dev/sda",
None,
"/dev/sda",
(
"Setting grub debconf-set-selections with ",
"'/dev/sda','false'",
),
),
(
# idevs unset, idevs_empty set
None,
"true",
"/dev/xvda",
(
"Setting grub debconf-set-selections with ",
"'/dev/xvda','true'",
),
),
(
# idevs set, idevs_empty set
"/dev/vda",
False,
"/dev/disk/by-id/company-user-1",
(
"Setting grub debconf-set-selections with ",
"'/dev/vda','false'",
),
),
(
# idevs set, idevs_empty set
# Respect what the user defines, even if its logically wrong
"/dev/nvme0n1",
True,
"",
(
"Setting grub debconf-set-selections with ",
"'/dev/nvme0n1','true'",
),
),
],
)
@mock.patch("cloudinit.config.cc_grub_dpkg.fetch_idevs")
@mock.patch("cloudinit.config.cc_grub_dpkg.util.logexc")
@mock.patch("cloudinit.config.cc_grub_dpkg.subp.subp")
def test_handle(
self,
m_subp,
m_logexc,
m_fetch_idevs,
cfg_idevs,
cfg_idevs_empty,
fetch_idevs_output,
expected_log_output,
):
"""Test setting of correct debconf database entries"""
m_fetch_idevs.return_value = fetch_idevs_output
log = mock.Mock(spec=Logger)
cfg = {"grub_dpkg": {}}
if cfg_idevs is not None:
cfg["grub_dpkg"]["grub-pc/install_devices"] = cfg_idevs
if cfg_idevs_empty is not None:
cfg["grub_dpkg"]["grub-pc/install_devices_empty"] = cfg_idevs_empty
handle(mock.Mock(), cfg, mock.Mock(), log, mock.Mock())
log.debug.assert_called_with("".join(expected_log_output))
class TestGrubDpkgSchema:
@pytest.mark.parametrize(
"config, expectation, has_errors",
(
(
{"grub_dpkg": {"grub-pc/install_devices_empty": False}},
does_not_raise(),
None,
),
(
{"grub_dpkg": {"grub-pc/install_devices_empty": "off"}},
pytest.raises(
SchemaValidationError,
match=(
r"^Cloud config schema deprecations:"
r" grub_dpkg.grub-pc/install_devices_empty:"
r" DEPRECATED. Use a boolean value instead.$"
),
),
False,
),
(
{"grub_dpkg": {"enabled": "yes"}},
pytest.raises(
SchemaValidationError,
match="'yes' is not of type 'boolean'",
),
True,
),
(
{"grub_dpkg": {"grub-pc/install_devices": ["/dev/sda"]}},
pytest.raises(
SchemaValidationError,
match=r"\['/dev/sda'\] is not of type 'string'",
),
True,
),
(
{"grub-dpkg": {"grub-pc/install_devices_empty": False}},
pytest.raises(
SchemaValidationError,
match=(
r"^Cloud config schema deprecations: grub-dpkg:"
r" DEPRECATED. Use ``grub_dpkg`` instead$"
),
),
False,
),
),
)
@skipUnlessJsonSchema()
def test_schema_validation(self, config, expectation, has_errors):
"""Assert expected schema validation and error messages."""
schema = get_schema()
with expectation as exc_info:
validate_cloudconfig_schema(config, schema, strict=True)
if has_errors is not None:
assert has_errors == exc_info.value.has_errors()
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