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-rw-r--r--cloudinit/net/__init__.py31
-rw-r--r--cloudinit/net/network_state.py12
-rw-r--r--cloudinit/net/tests/test_init.py19
3 files changed, 29 insertions, 33 deletions
diff --git a/cloudinit/net/__init__.py b/cloudinit/net/__init__.py
index f3cec794..ea707c09 100644
--- a/cloudinit/net/__init__.py
+++ b/cloudinit/net/__init__.py
@@ -265,32 +265,23 @@ def find_fallback_nic(blacklist_drivers=None):
def generate_fallback_config(blacklist_drivers=None, config_driver=None):
- """Determine which attached net dev is most likely to have a connection and
- generate network state to run dhcp on that interface"""
-
+ """Generate network cfg v2 for dhcp on the NIC most likely connected."""
if not config_driver:
config_driver = False
target_name = find_fallback_nic(blacklist_drivers=blacklist_drivers)
- if target_name:
- target_mac = read_sys_net_safe(target_name, 'address')
- nconf = {'config': [], 'version': 1}
- cfg = {'type': 'physical', 'name': target_name,
- 'mac_address': target_mac, 'subnets': [{'type': 'dhcp'}]}
- # inject the device driver name, dev_id into config if enabled and
- # device has a valid device driver value
- if config_driver:
- driver = device_driver(target_name)
- if driver:
- cfg['params'] = {
- 'driver': driver,
- 'device_id': device_devid(target_name),
- }
- nconf['config'].append(cfg)
- return nconf
- else:
+ if not target_name:
# can't read any interfaces addresses (or there are none); give up
return None
+ target_mac = read_sys_net_safe(target_name, 'address')
+ cfg = {'dhcp4': True, 'set-name': target_name,
+ 'match': {'macaddress': target_mac.lower()}}
+ if config_driver:
+ driver = device_driver(target_name)
+ if driver:
+ cfg['match']['driver'] = driver
+ nconf = {'ethernets': {target_name: cfg}, 'version': 2}
+ return nconf
def extract_physdevs(netcfg):
diff --git a/cloudinit/net/network_state.py b/cloudinit/net/network_state.py
index 0ca576b6..c0c415d0 100644
--- a/cloudinit/net/network_state.py
+++ b/cloudinit/net/network_state.py
@@ -596,6 +596,7 @@ class NetworkStateInterpreter(object):
eno1:
match:
macaddress: 00:11:22:33:44:55
+ driver: hv_netsvc
wakeonlan: true
dhcp4: true
dhcp6: false
@@ -631,15 +632,18 @@ class NetworkStateInterpreter(object):
'type': 'physical',
'name': cfg.get('set-name', eth),
}
- mac_address = cfg.get('match', {}).get('macaddress', None)
+ match = cfg.get('match', {})
+ mac_address = match.get('macaddress', None)
if not mac_address:
LOG.debug('NetworkState Version2: missing "macaddress" info '
'in config entry: %s: %s', eth, str(cfg))
- phy_cmd.update({'mac_address': mac_address})
-
+ phy_cmd['mac_address'] = mac_address
+ driver = match.get('driver', None)
+ if driver:
+ phy_cmd['params'] = {'driver': driver}
for key in ['mtu', 'match', 'wakeonlan']:
if key in cfg:
- phy_cmd.update({key: cfg.get(key)})
+ phy_cmd[key] = cfg[key]
subnets = self._v2_to_v1_ipcfg(cfg)
if len(subnets) > 0:
diff --git a/cloudinit/net/tests/test_init.py b/cloudinit/net/tests/test_init.py
index e6e77d7a..d2e38f00 100644
--- a/cloudinit/net/tests/test_init.py
+++ b/cloudinit/net/tests/test_init.py
@@ -212,9 +212,9 @@ class TestGenerateFallbackConfig(CiTestCase):
mac = 'aa:bb:cc:aa:bb:cc'
write_file(os.path.join(self.sysdir, 'eth1', 'address'), mac)
expected = {
- 'config': [{'type': 'physical', 'mac_address': mac,
- 'name': 'eth1', 'subnets': [{'type': 'dhcp'}]}],
- 'version': 1}
+ 'ethernets': {'eth1': {'match': {'macaddress': mac},
+ 'dhcp4': True, 'set-name': 'eth1'}},
+ 'version': 2}
self.assertEqual(expected, net.generate_fallback_config())
def test_generate_fallback_finds_dormant_eth_with_mac(self):
@@ -223,9 +223,9 @@ class TestGenerateFallbackConfig(CiTestCase):
mac = 'aa:bb:cc:aa:bb:cc'
write_file(os.path.join(self.sysdir, 'eth0', 'address'), mac)
expected = {
- 'config': [{'type': 'physical', 'mac_address': mac,
- 'name': 'eth0', 'subnets': [{'type': 'dhcp'}]}],
- 'version': 1}
+ 'ethernets': {'eth0': {'match': {'macaddress': mac}, 'dhcp4': True,
+ 'set-name': 'eth0'}},
+ 'version': 2}
self.assertEqual(expected, net.generate_fallback_config())
def test_generate_fallback_finds_eth_by_operstate(self):
@@ -233,9 +233,10 @@ class TestGenerateFallbackConfig(CiTestCase):
mac = 'aa:bb:cc:aa:bb:cc'
write_file(os.path.join(self.sysdir, 'eth0', 'address'), mac)
expected = {
- 'config': [{'type': 'physical', 'mac_address': mac,
- 'name': 'eth0', 'subnets': [{'type': 'dhcp'}]}],
- 'version': 1}
+ 'ethernets': {
+ 'eth0': {'dhcp4': True, 'match': {'macaddress': mac},
+ 'set-name': 'eth0'}},
+ 'version': 2}
valid_operstates = ['dormant', 'down', 'lowerlayerdown', 'unknown']
for state in valid_operstates:
write_file(os.path.join(self.sysdir, 'eth0', 'operstate'), state)