diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/integration_tests/bugs/test_lp1912844.py | 103 | ||||
| -rw-r--r-- | tests/unittests/test_datasource/test_configdrive.py | 8 | ||||
| -rw-r--r-- | tests/unittests/test_net.py | 20 |
3 files changed, 131 insertions, 0 deletions
diff --git a/tests/integration_tests/bugs/test_lp1912844.py b/tests/integration_tests/bugs/test_lp1912844.py new file mode 100644 index 00000000..efafae50 --- /dev/null +++ b/tests/integration_tests/bugs/test_lp1912844.py @@ -0,0 +1,103 @@ +"""Integration test for LP: #1912844 + +cloud-init should ignore OVS-internal interfaces when performing its own +interface determination: these interfaces are handled fully by OVS, so +cloud-init should never need to touch them. + +This test is a semi-synthetic reproducer for the bug. It uses a similar +network configuration, tweaked slightly to DHCP in a way that will succeed even +on "failed" boots. The exact bug doesn't reproduce with the NoCloud +datasource, because it runs at init-local time (whereas the MAAS datasource, +from the report, runs only at init (network) time): this means that the +networking code runs before OVS creates its interfaces (which happens after +init-local but, of course, before networking is up), and so doesn't generate +the traceback that they cause. We work around this by calling +``get_interfaces_by_mac` directly in the test code. +""" +import pytest + +from tests.integration_tests import random_mac_address + +MAC_ADDRESS = random_mac_address() + +NETWORK_CONFIG = """\ +bonds: + bond0: + interfaces: + - enp5s0 + macaddress: {0} + mtu: 1500 +bridges: + ovs-br: + interfaces: + - bond0 + macaddress: {0} + mtu: 1500 + openvswitch: {{}} + dhcp4: true +ethernets: + enp5s0: + mtu: 1500 + set-name: enp5s0 + match: + macaddress: {0} +version: 2 +vlans: + ovs-br.100: + id: 100 + link: ovs-br + mtu: 1500 + ovs-br.200: + id: 200 + link: ovs-br + mtu: 1500 +""".format(MAC_ADDRESS) + + +SETUP_USER_DATA = """\ +#cloud-config +packages: +- openvswitch-switch +""" + + +@pytest.fixture +def ovs_enabled_session_cloud(session_cloud): + """A session_cloud wrapper, to use an OVS-enabled image for tests. + + This implementation is complicated by wanting to use ``session_cloud``s + snapshot cleanup/retention logic, to avoid having to reimplement that here. + """ + old_snapshot_id = session_cloud.snapshot_id + with session_cloud.launch( + user_data=SETUP_USER_DATA, + ) as instance: + instance.instance.clean() + session_cloud.snapshot_id = instance.snapshot() + + yield session_cloud + + try: + session_cloud.delete_snapshot() + finally: + session_cloud.snapshot_id = old_snapshot_id + + +@pytest.mark.lxd_vm +def test_get_interfaces_by_mac_doesnt_traceback(ovs_enabled_session_cloud): + """Launch our OVS-enabled image and confirm the bug doesn't reproduce.""" + launch_kwargs = { + "config_dict": { + "user.network-config": NETWORK_CONFIG, + "volatile.eth0.hwaddr": MAC_ADDRESS, + }, + } + with ovs_enabled_session_cloud.launch( + launch_kwargs=launch_kwargs, + ) as client: + result = client.execute( + "python3 -c" + "'from cloudinit.net import get_interfaces_by_mac;" + "get_interfaces_by_mac()'" + ) + assert result.ok diff --git a/tests/unittests/test_datasource/test_configdrive.py b/tests/unittests/test_datasource/test_configdrive.py index 6f830cc6..2e2b7847 100644 --- a/tests/unittests/test_datasource/test_configdrive.py +++ b/tests/unittests/test_datasource/test_configdrive.py @@ -494,6 +494,10 @@ class TestConfigDriveDataSource(CiTestCase): self.assertEqual('config-disk (/dev/anything)', cfg_ds.subplatform) +@mock.patch( + "cloudinit.net.is_openvswitch_internal_interface", + mock.Mock(return_value=False) +) class TestNetJson(CiTestCase): def setUp(self): super(TestNetJson, self).setUp() @@ -654,6 +658,10 @@ class TestNetJson(CiTestCase): self.assertEqual(out_data, conv_data) +@mock.patch( + "cloudinit.net.is_openvswitch_internal_interface", + mock.Mock(return_value=False) +) class TestConvertNetworkData(CiTestCase): with_logs = True diff --git a/tests/unittests/test_net.py b/tests/unittests/test_net.py index 38d934d4..cb636f41 100644 --- a/tests/unittests/test_net.py +++ b/tests/unittests/test_net.py @@ -2933,6 +2933,10 @@ iface eth1 inet dhcp self.assertEqual(0, mock_settle.call_count) +@mock.patch( + "cloudinit.net.is_openvswitch_internal_interface", + mock.Mock(return_value=False) +) class TestRhelSysConfigRendering(CiTestCase): with_logs = True @@ -3620,6 +3624,10 @@ USERCTL=no expected, self._render_and_read(network_config=v2data)) +@mock.patch( + "cloudinit.net.is_openvswitch_internal_interface", + mock.Mock(return_value=False) +) class TestOpenSuseSysConfigRendering(CiTestCase): with_logs = True @@ -5037,6 +5045,10 @@ class TestNetRenderers(CiTestCase): self.assertTrue(result) +@mock.patch( + "cloudinit.net.is_openvswitch_internal_interface", + mock.Mock(return_value=False) +) class TestGetInterfaces(CiTestCase): _data = {'bonds': ['bond1'], 'bridges': ['bridge1'], @@ -5186,6 +5198,10 @@ class TestInterfaceHasOwnMac(CiTestCase): self.assertFalse(interface_has_own_mac("eth0")) +@mock.patch( + "cloudinit.net.is_openvswitch_internal_interface", + mock.Mock(return_value=False) +) class TestGetInterfacesByMac(CiTestCase): _data = {'bonds': ['bond1'], 'bridges': ['bridge1'], @@ -5342,6 +5358,10 @@ class TestInterfacesSorting(CiTestCase): ['enp0s3', 'enp0s8', 'enp0s13', 'enp1s2', 'enp2s0', 'enp2s3']) +@mock.patch( + "cloudinit.net.is_openvswitch_internal_interface", + mock.Mock(return_value=False) +) class TestGetIBHwaddrsByInterface(CiTestCase): _ib_addr = '80:00:00:28:fe:80:00:00:00:00:00:00:00:11:22:03:00:33:44:56' |