def test_wait_for_physdevs_no_raise_if_not_strict(self):
physdevs = [
['aa:bb:cc:dd:ee:ff', 'eth0', 'virtio', '0x1000'],
['00:11:22:33:44:55', 'ens3', 'e1000', '0x1643'],
]
netcfg = {
'version': 2,
'ethernets': {args[1]: _mk_v2_phys(*args)
for args in physdevs},
}
self.m_get_iface_mac.return_value = {}
net.wait_for_physdevs(netcfg, strict=False)
self.assertEqual(5 * len(physdevs), self.m_udev_settle.call_count)
def test_wait_for_physdevs_raise_runtime_error_if_missing_and_strict(self):
physdevs = [
['aa:bb:cc:dd:ee:ff', 'eth0', 'virtio', '0x1000'],
['00:11:22:33:44:55', 'ens3', 'e1000', '0x1643'],
]
netcfg = {
'version': 2,
'ethernets': {args[1]: _mk_v2_phys(*args)
for args in physdevs},
}
self.m_get_iface_mac.return_value = {}
with self.assertRaises(RuntimeError):
net.wait_for_physdevs(netcfg)
self.assertEqual(5 * len(physdevs), self.m_udev_settle.call_count)
def test_wait_for_physdevs_skips_settle_if_all_present(self):
physdevs = [
['aa:bb:cc:dd:ee:ff', 'eth0', 'virtio', '0x1000'],
['00:11:22:33:44:55', 'ens3', 'e1000', '0x1643'],
]
netcfg = {
'version': 2,
'ethernets': {args[1]: _mk_v2_phys(*args)
for args in physdevs},
}
self.m_get_iface_mac.side_effect = iter([
{
'aa:bb:cc:dd:ee:ff': 'eth0',
'00:11:22:33:44:55': 'ens3'
},
])
net.wait_for_physdevs(netcfg)
self.assertEqual(0, self.m_udev_settle.call_count)
def apply_network_config(self, bring_up):
# get a network config
netcfg, src = self._find_networking_config()
if netcfg is None:
LOG.info("network config is disabled by %s", src)
return
# request an update if needed/available
if self.datasource is not NULL_DATA_SOURCE:
if not self.is_new_instance():
if not self.datasource.update_metadata([EventType.BOOT]):
LOG.debug(
"No network config applied. Neither a new instance"
" nor datasource network update on '%s' event",
EventType.BOOT)
# nothing new, but ensure proper names
self._apply_netcfg_names(netcfg)
return
else:
# refresh netcfg after update
netcfg, src = self._find_networking_config()
# ensure all physical devices in config are present
net.wait_for_physdevs(netcfg)
# apply renames from config
self._apply_netcfg_names(netcfg)
# rendering config
LOG.info("Applying network configuration from %s bringup=%s: %s", src,
bring_up, netcfg)
try:
return self.distro.apply_network_config(netcfg, bring_up=bring_up)
except net.RendererNotFoundError as e:
LOG.error(
"Unable to render networking. Network config is "
"likely broken: %s", e)
return
except NotImplementedError:
LOG.warning(
"distro '%s' does not implement apply_network_config. "
"networking may not be configured properly.", self.distro)
return
def test_wait_for_physdevs_calls_udev_settle_on_missing(self):
physdevs = [
['aa:bb:cc:dd:ee:ff', 'eth0', 'virtio', '0x1000'],
['00:11:22:33:44:55', 'ens3', 'e1000', '0x1643'],
]
netcfg = {
'version': 2,
'ethernets': {args[1]: _mk_v2_phys(*args)
for args in physdevs},
}
self.m_get_iface_mac.side_effect = iter([
{
'aa:bb:cc:dd:ee:ff': 'eth0'
}, # first call ens3 is missing
{
'aa:bb:cc:dd:ee:ff': 'eth0',
'00:11:22:33:44:55': 'ens3'
}, # second call has both
])
net.wait_for_physdevs(netcfg)
self.m_udev_settle.assert_called_with(exists=net.sys_dev_path('ens3'))
def wait_for_physdevs(self,
netcfg: NetworkConfig,
*,
strict: bool = True) -> None:
return net.wait_for_physdevs(netcfg, strict=strict)