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# Copyright (C) 2018 Jonas Keidel
#
# Author: Jonas Keidel <jonas.keidel@hetzner.com>
#
# This file is part of cloud-init. See LICENSE file for license information.
from cloudinit.sources import DataSourceHetzner
import cloudinit.sources.helpers.hetzner as hc_helper
from cloudinit import util, settings, helpers
from cloudinit.tests.helpers import mock, CiTestCase
import base64
import pytest
METADATA = util.load_yaml("""
hostname: cloudinit-test
instance-id: 123456
local-ipv4: ''
network-config:
config:
- mac_address: 96:00:00:08:19:da
name: eth0
subnets:
- dns_nameservers:
- 213.133.99.99
- 213.133.100.100
- 213.133.98.98
ipv4: true
type: dhcp
type: physical
- name: eth0:0
subnets:
- address: 2a01:4f8:beef:beef::1/64
gateway: fe80::1
ipv6: true
routes:
- gateway: fe80::1%eth0
netmask: 0
network: '::'
type: static
type: physical
version: 1
network-sysconfig: "DEVICE='eth0'\nTYPE=Ethernet\nBOOTPROTO=dhcp\n\
ONBOOT='yes'\nHWADDR=96:00:00:08:19:da\n\
IPV6INIT=yes\nIPV6ADDR=2a01:4f8:beef:beef::1/64\n\
IPV6_DEFAULTGW=fe80::1%eth0\nIPV6_AUTOCONF=no\n\
DNS1=213.133.99.99\nDNS2=213.133.100.100\n"
public-ipv4: 192.168.0.1
public-keys:
- ssh-ed25519 \
AAAAC3Nzac1lZdI1NTE5AaaAIaFrcac0yVITsmRrmueq6MD0qYNKlEvW8O1Ib4nkhmWh \
test-key@workstation
vendor_data: "test"
""")
USERDATA = b"""#cloud-config
runcmd:
- [touch, /root/cloud-init-worked ]
"""
class TestDataSourceHetzner(CiTestCase):
"""
Test reading the meta-data
"""
def setUp(self):
super(TestDataSourceHetzner, self).setUp()
self.tmp = self.tmp_dir()
def get_ds(self):
ds = DataSourceHetzner.DataSourceHetzner(
settings.CFG_BUILTIN, None, helpers.Paths({'run_dir': self.tmp}))
return ds
@mock.patch('cloudinit.net.EphemeralIPv4Network')
@mock.patch('cloudinit.net.find_fallback_nic')
@mock.patch('cloudinit.sources.helpers.hetzner.read_metadata')
@mock.patch('cloudinit.sources.helpers.hetzner.read_userdata')
@mock.patch('cloudinit.sources.DataSourceHetzner.get_hcloud_data')
def test_read_data(self, m_get_hcloud_data, m_usermd, m_readmd,
m_fallback_nic, m_net):
m_get_hcloud_data.return_value = (True,
str(METADATA.get('instance-id')))
m_readmd.return_value = METADATA.copy()
m_usermd.return_value = USERDATA
m_fallback_nic.return_value = 'eth0'
ds = self.get_ds()
ret = ds.get_data()
self.assertTrue(ret)
m_net.assert_called_once_with(
'eth0', '169.254.0.1',
16, '169.254.255.255'
)
self.assertTrue(m_readmd.called)
self.assertEqual(METADATA.get('hostname'), ds.get_hostname())
self.assertEqual(METADATA.get('public-keys'),
ds.get_public_ssh_keys())
self.assertIsInstance(ds.get_public_ssh_keys(), list)
self.assertEqual(ds.get_userdata_raw(), USERDATA)
self.assertEqual(ds.get_vendordata_raw(), METADATA.get('vendor_data'))
@mock.patch('cloudinit.sources.helpers.hetzner.read_metadata')
@mock.patch('cloudinit.net.find_fallback_nic')
@mock.patch('cloudinit.sources.DataSourceHetzner.get_hcloud_data')
def test_not_on_hetzner_returns_false(self, m_get_hcloud_data,
m_find_fallback, m_read_md):
"""If helper 'get_hcloud_data' returns False,
return False from get_data."""
m_get_hcloud_data.return_value = (False, None)
ds = self.get_ds()
ret = ds.get_data()
self.assertFalse(ret)
# These are a white box attempt to ensure it did not search.
m_find_fallback.assert_not_called()
m_read_md.assert_not_called()
class TestMaybeB64Decode:
"""Test the maybe_b64decode helper function."""
@pytest.mark.parametrize("invalid_input", (str("not bytes"), int(4)))
def test_raises_error_on_non_bytes(self, invalid_input):
"""maybe_b64decode should raise error if data is not bytes."""
with pytest.raises(TypeError):
hc_helper.maybe_b64decode(invalid_input)
@pytest.mark.parametrize("in_data,expected", [
# If data is not b64 encoded, then return value should be the same.
(b"this is my data", b"this is my data"),
# If data is b64 encoded, then return value should be decoded.
(base64.b64encode(b"data"), b"data"),
])
def test_happy_path(self, in_data, expected):
assert expected == hc_helper.maybe_b64decode(in_data)
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