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-rw-r--r--cloudinit/sources/DataSourceConfigDrive.py29
1 files changed, 25 insertions, 4 deletions
diff --git a/cloudinit/sources/DataSourceConfigDrive.py b/cloudinit/sources/DataSourceConfigDrive.py
index 61d967d9..3cc9155d 100644
--- a/cloudinit/sources/DataSourceConfigDrive.py
+++ b/cloudinit/sources/DataSourceConfigDrive.py
@@ -255,7 +255,7 @@ def find_candidate_devs(probe_optical=True):
# Convert OpenStack ConfigDrive NetworkData json to network_config yaml
-def convert_network_data(network_json=None):
+def convert_network_data(network_json=None, known_macs=None):
"""Return a dictionary of network_config by parsing provided
OpenStack ConfigDrive NetworkData json format
@@ -319,9 +319,15 @@ def convert_network_data(network_json=None):
subnets = []
cfg = {k: v for k, v in link.items()
if k in valid_keys['physical']}
- cfg.update({'name': link['id']})
- for network in [net for net in networks
- if net['link'] == link['id']]:
+ # 'name' is not in openstack spec yet, but we will support it if it is
+ # present. The 'id' in the spec is currently implemented as the host
+ # nic's name, meaning something like 'tap-adfasdffd'. We do not want
+ # to name guest devices with such ugly names.
+ if 'name' in link:
+ cfg['name'] = link['name']
+
+ for network in [n for n in networks
+ if n['link'] == link['id']]:
subnet = {k: v for k, v in network.items()
if k in valid_keys['subnet']}
if 'dhcp' in network['type']:
@@ -365,6 +371,21 @@ def convert_network_data(network_json=None):
config.append(cfg)
+ need_names = [d for d in config
+ if d.get('type') == 'physical' and 'name' not in d]
+
+ if need_names:
+ if known_macs is None:
+ known_macs = net.get_interfaces_by_mac()
+
+ for d in need_names:
+ mac = d.get('mac_address')
+ if not mac:
+ raise ValueError("No mac_address or name entry for %s" % d)
+ if mac not in known_macs:
+ raise ValueError("Unable to find a system nic for %s" % d)
+ d['name'] = known_macs[mac]
+
for service in services:
cfg = service
cfg.update({'type': 'nameserver'})