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-rw-r--r--cloudinit/net/__init__.py45
1 files changed, 45 insertions, 0 deletions
diff --git a/cloudinit/net/__init__.py b/cloudinit/net/__init__.py
index 91e36aca..40d330b5 100644
--- a/cloudinit/net/__init__.py
+++ b/cloudinit/net/__init__.py
@@ -768,4 +768,49 @@ def read_kernel_cmdline_config(files=None, mac_addrs=None, cmdline=None):
return config_from_klibc_net_cfg(files=files, mac_addrs=mac_addrs)
+def convert_eni_data(eni_data):
+ # return a network config representation of what is in eni_data
+ ifaces = {}
+ parse_deb_config_data(ifaces, eni_data, src_dir=None, src_path=None)
+ return _ifaces_to_net_config_data(ifaces)
+
+
+def _ifaces_to_net_config_data(ifaces):
+ """Return network config that represents the ifaces data provided.
+ ifaces = parse_deb_config("/etc/network/interfaces")
+ config = ifaces_to_net_config_data(ifaces)
+ state = parse_net_config_data(config)."""
+ devs = {}
+ for name, data in ifaces.items():
+ # devname is 'eth0' for name='eth0:1'
+ devname = name.partition(":")[0]
+ if devname not in devs:
+ devs[devname] = {'type': 'physical', 'name': devname,
+ 'subnets': []}
+ # this isnt strictly correct, but some might specify
+ # hwaddress on a nic for matching / declaring name.
+ if 'hwaddress' in data:
+ devs[devname]['mac_address'] = data['hwaddress']
+ subnet = {'_orig_eni_name': name, 'type': data['method']}
+ if data.get('auto'):
+ subnet['control'] = 'auto'
+ else:
+ subnet['control'] = 'manual'
+
+ if data.get('method') == 'static':
+ subnet['address'] = data['address']
+
+ if 'gateway' in data:
+ subnet['gateway'] = data['gateway']
+
+ if 'dns' in data:
+ for n in ('nameservers', 'search'):
+ if n in data['dns'] and data['dns'][n]:
+ subnet['dns_' + n] = data['dns'][n]
+ devs[devname]['subnets'].append(subnet)
+
+ return {'version': 1,
+ 'config': [devs[d] for d in sorted(devs)]}
+
+
# vi: ts=4 expandtab syntax=python