diff options
Diffstat (limited to 'tests/unittests/test_datasource/test_azure.py')
| -rw-r--r-- | tests/unittests/test_datasource/test_azure.py | 217 |
1 files changed, 172 insertions, 45 deletions
diff --git a/tests/unittests/test_datasource/test_azure.py b/tests/unittests/test_datasource/test_azure.py index 8112c69b..7e789853 100644 --- a/tests/unittests/test_datasource/test_azure.py +++ b/tests/unittests/test_datasource/test_azure.py @@ -116,9 +116,6 @@ class TestAzureDataSource(TestCase): data['iid_from_shared_cfg'] = path return 'i-my-azure-id' - def _apply_hostname_bounce(**kwargs): - data['apply_hostname_bounce'] = kwargs - if data.get('ovfcontent') is not None: populate_dir(os.path.join(self.paths.seed_dir, "azure"), {'ovf-env.xml': data['ovfcontent']}) @@ -132,7 +129,9 @@ class TestAzureDataSource(TestCase): (mod, 'wait_for_files', _wait_for_files), (mod, 'pubkeys_from_crt_files', _pubkeys_from_crt_files), (mod, 'iid_from_shared_config', _iid_from_shared_config), - (mod, 'apply_hostname_bounce', _apply_hostname_bounce), + (mod, 'perform_hostname_bounce', mock.MagicMock()), + (mod, 'get_hostname', mock.MagicMock()), + (mod, 'set_hostname', mock.MagicMock()), ]) dsrc = mod.DataSourceAzureNet( @@ -272,47 +271,6 @@ class TestAzureDataSource(TestCase): for mypk in mypklist: self.assertIn(mypk, dsrc.cfg['_pubkeys']) - def test_disabled_bounce(self): - pass - - def test_apply_bounce_call_1(self): - # hostname needs to get through to apply_hostname_bounce - odata = {'HostName': 'my-random-hostname'} - data = {'ovfcontent': construct_valid_ovf_env(data=odata)} - - self._get_ds(data).get_data() - self.assertIn('hostname', data['apply_hostname_bounce']) - self.assertEqual(data['apply_hostname_bounce']['hostname'], - odata['HostName']) - - def test_apply_bounce_call_configurable(self): - # hostname_bounce should be configurable in datasource cfg - cfg = {'hostname_bounce': {'interface': 'eth1', 'policy': 'off', - 'command': 'my-bounce-command', - 'hostname_command': 'my-hostname-command'}} - odata = {'HostName': "xhost", - 'dscfg': {'text': b64e(yaml.dump(cfg)), - 'encoding': 'base64'}} - data = {'ovfcontent': construct_valid_ovf_env(data=odata)} - self._get_ds(data).get_data() - - for k in cfg['hostname_bounce']: - self.assertIn(k, data['apply_hostname_bounce']) - - for k, v in cfg['hostname_bounce'].items(): - self.assertEqual(data['apply_hostname_bounce'][k], v) - - def test_set_hostname_disabled(self): - # config specifying set_hostname off should not bounce - cfg = {'set_hostname': False} - odata = {'HostName': "xhost", - 'dscfg': {'text': b64e(yaml.dump(cfg)), - 'encoding': 'base64'}} - data = {'ovfcontent': construct_valid_ovf_env(data=odata)} - self._get_ds(data).get_data() - - self.assertEqual(data.get('apply_hostname_bounce', "N/A"), "N/A") - def test_default_ephemeral(self): # make sure the ephemeral device works odata = {} @@ -425,6 +383,175 @@ class TestAzureDataSource(TestCase): load_file(os.path.join(self.waagent_d, 'ovf-env.xml'))) +class TestAzureBounce(TestCase): + + def mock_out_azure_moving_parts(self): + self.patches.enter_context( + mock.patch.object(DataSourceAzure, 'invoke_agent')) + self.patches.enter_context( + mock.patch.object(DataSourceAzure, 'wait_for_files')) + self.patches.enter_context( + mock.patch.object(DataSourceAzure, 'iid_from_shared_config', + mock.MagicMock(return_value='i-my-azure-id'))) + self.patches.enter_context( + mock.patch.object(DataSourceAzure, 'list_possible_azure_ds_devs', + mock.MagicMock(return_value=[]))) + self.patches.enter_context( + mock.patch.object(DataSourceAzure, 'find_ephemeral_disk', + mock.MagicMock(return_value=None))) + self.patches.enter_context( + mock.patch.object(DataSourceAzure, 'find_ephemeral_part', + mock.MagicMock(return_value=None))) + + def setUp(self): + super(TestAzureBounce, self).setUp() + self.tmp = tempfile.mkdtemp() + self.waagent_d = os.path.join(self.tmp, 'var', 'lib', 'waagent') + self.paths = helpers.Paths({'cloud_dir': self.tmp}) + self.addCleanup(shutil.rmtree, self.tmp) + DataSourceAzure.BUILTIN_DS_CONFIG['data_dir'] = self.waagent_d + self.patches = ExitStack() + self.mock_out_azure_moving_parts() + self.get_hostname = self.patches.enter_context( + mock.patch.object(DataSourceAzure, 'get_hostname')) + self.set_hostname = self.patches.enter_context( + mock.patch.object(DataSourceAzure, 'set_hostname')) + self.subp = self.patches.enter_context( + mock.patch('cloudinit.sources.DataSourceAzure.util.subp')) + + def tearDown(self): + self.patches.close() + + def _get_ds(self, ovfcontent=None): + if ovfcontent is not None: + populate_dir(os.path.join(self.paths.seed_dir, "azure"), + {'ovf-env.xml': ovfcontent}) + return DataSourceAzure.DataSourceAzureNet( + {}, distro=None, paths=self.paths) + + def get_ovf_env_with_dscfg(self, hostname, cfg): + odata = { + 'HostName': hostname, + 'dscfg': { + 'text': b64e(yaml.dump(cfg)), + 'encoding': 'base64' + } + } + return construct_valid_ovf_env(data=odata) + + def test_disabled_bounce_does_not_change_hostname(self): + cfg = {'hostname_bounce': {'policy': 'off'}} + self._get_ds(self.get_ovf_env_with_dscfg('test-host', cfg)).get_data() + self.assertEqual(0, self.set_hostname.call_count) + + @mock.patch('cloudinit.sources.DataSourceAzure.perform_hostname_bounce') + def test_disabled_bounce_does_not_perform_bounce( + self, perform_hostname_bounce): + cfg = {'hostname_bounce': {'policy': 'off'}} + self._get_ds(self.get_ovf_env_with_dscfg('test-host', cfg)).get_data() + self.assertEqual(0, perform_hostname_bounce.call_count) + + def test_same_hostname_does_not_change_hostname(self): + host_name = 'unchanged-host-name' + self.get_hostname.return_value = host_name + cfg = {'hostname_bounce': {'policy': 'yes'}} + self._get_ds(self.get_ovf_env_with_dscfg(host_name, cfg)).get_data() + self.assertEqual(0, self.set_hostname.call_count) + + @mock.patch('cloudinit.sources.DataSourceAzure.perform_hostname_bounce') + def test_unchanged_hostname_does_not_perform_bounce( + self, perform_hostname_bounce): + host_name = 'unchanged-host-name' + self.get_hostname.return_value = host_name + cfg = {'hostname_bounce': {'policy': 'yes'}} + self._get_ds(self.get_ovf_env_with_dscfg(host_name, cfg)).get_data() + self.assertEqual(0, perform_hostname_bounce.call_count) + + @mock.patch('cloudinit.sources.DataSourceAzure.perform_hostname_bounce') + def test_force_performs_bounce_regardless(self, perform_hostname_bounce): + host_name = 'unchanged-host-name' + self.get_hostname.return_value = host_name + cfg = {'hostname_bounce': {'policy': 'force'}} + self._get_ds(self.get_ovf_env_with_dscfg(host_name, cfg)).get_data() + self.assertEqual(1, perform_hostname_bounce.call_count) + + def test_different_hostnames_sets_hostname(self): + expected_hostname = 'azure-expected-host-name' + self.get_hostname.return_value = 'default-host-name' + self._get_ds( + self.get_ovf_env_with_dscfg(expected_hostname, {})).get_data() + self.assertEqual(expected_hostname, + self.set_hostname.call_args_list[0][0][0]) + + @mock.patch('cloudinit.sources.DataSourceAzure.perform_hostname_bounce') + def test_different_hostnames_performs_bounce( + self, perform_hostname_bounce): + expected_hostname = 'azure-expected-host-name' + self.get_hostname.return_value = 'default-host-name' + self._get_ds( + self.get_ovf_env_with_dscfg(expected_hostname, {})).get_data() + self.assertEqual(1, perform_hostname_bounce.call_count) + + def test_different_hostnames_sets_hostname_back(self): + initial_host_name = 'default-host-name' + self.get_hostname.return_value = initial_host_name + self._get_ds( + self.get_ovf_env_with_dscfg('some-host-name', {})).get_data() + self.assertEqual(initial_host_name, + self.set_hostname.call_args_list[-1][0][0]) + + @mock.patch('cloudinit.sources.DataSourceAzure.perform_hostname_bounce') + def test_failure_in_bounce_still_resets_host_name( + self, perform_hostname_bounce): + perform_hostname_bounce.side_effect = Exception + initial_host_name = 'default-host-name' + self.get_hostname.return_value = initial_host_name + self._get_ds( + self.get_ovf_env_with_dscfg('some-host-name', {})).get_data() + self.assertEqual(initial_host_name, + self.set_hostname.call_args_list[-1][0][0]) + + def test_environment_correct_for_bounce_command(self): + interface = 'int0' + hostname = 'my-new-host' + old_hostname = 'my-old-host' + self.get_hostname.return_value = old_hostname + cfg = {'hostname_bounce': {'interface': interface, 'policy': 'force'}} + data = self.get_ovf_env_with_dscfg(hostname, cfg) + self._get_ds(data).get_data() + self.assertEqual(1, self.subp.call_count) + bounce_env = self.subp.call_args[1]['env'] + self.assertEqual(interface, bounce_env['interface']) + self.assertEqual(hostname, bounce_env['hostname']) + self.assertEqual(old_hostname, bounce_env['old_hostname']) + + def test_default_bounce_command_used_by_default(self): + cmd = 'default-bounce-command' + DataSourceAzure.BUILTIN_DS_CONFIG['hostname_bounce']['command'] = cmd + cfg = {'hostname_bounce': {'policy': 'force'}} + data = self.get_ovf_env_with_dscfg('some-hostname', cfg) + self._get_ds(data).get_data() + self.assertEqual(1, self.subp.call_count) + bounce_args = self.subp.call_args[1]['args'] + self.assertEqual(cmd, bounce_args) + + @mock.patch('cloudinit.sources.DataSourceAzure.perform_hostname_bounce') + def test_set_hostname_option_can_disable_bounce( + self, perform_hostname_bounce): + cfg = {'set_hostname': False, 'hostname_bounce': {'policy': 'force'}} + data = self.get_ovf_env_with_dscfg('some-hostname', cfg) + self._get_ds(data).get_data() + + self.assertEqual(0, perform_hostname_bounce.call_count) + + def test_set_hostname_option_can_disable_hostname_set(self): + cfg = {'set_hostname': False, 'hostname_bounce': {'policy': 'force'}} + data = self.get_ovf_env_with_dscfg('some-hostname', cfg) + self._get_ds(data).get_data() + + self.assertEqual(0, self.set_hostname.call_count) + + class TestReadAzureOvf(TestCase): def test_invalid_xml_raises_non_azure_ds(self): invalid_xml = "<foo>" + construct_valid_ovf_env(data={}) |