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# This file is part of cloud-init. See LICENSE file for license information.
"""Debug network config format conversions."""
import argparse
import json
import os
import sys
import yaml
from cloudinit.sources.helpers import openstack
from cloudinit.sources import DataSourceAzure as azure
from cloudinit import distros
from cloudinit.net import eni, netplan, network_state, sysconfig
from cloudinit import log
NAME = 'net-convert'
def get_parser(parser=None):
"""Build or extend and arg parser for net-convert utility.
@param parser: Optional existing ArgumentParser instance representing the
subcommand which will be extended to support the args of this utility.
@returns: ArgumentParser with proper argument configuration.
"""
if not parser:
parser = argparse.ArgumentParser(prog=NAME, description=__doc__)
parser.add_argument("-p", "--network-data", type=open,
metavar="PATH", required=True)
parser.add_argument("-k", "--kind",
choices=['eni', 'network_data.json', 'yaml',
'azure-imds'],
required=True)
parser.add_argument("-d", "--directory",
metavar="PATH",
help="directory to place output in",
required=True)
parser.add_argument("-D", "--distro",
choices=[item for sublist in
distros.OSFAMILIES.values()
for item in sublist],
required=True)
parser.add_argument("-m", "--mac",
metavar="name,mac",
action='append',
help="interface name to mac mapping")
parser.add_argument("--debug", action='store_true',
help='enable debug logging to stderr.')
parser.add_argument("-O", "--output-kind",
choices=['eni', 'netplan', 'sysconfig'],
required=True)
return parser
def handle_args(name, args):
if not args.directory.endswith("/"):
args.directory += "/"
if not os.path.isdir(args.directory):
os.makedirs(args.directory)
if args.debug:
log.setupBasicLogging(level=log.DEBUG)
else:
log.setupBasicLogging(level=log.WARN)
if args.mac:
known_macs = {}
for item in args.mac:
iface_name, iface_mac = item.split(",", 1)
known_macs[iface_mac] = iface_name
else:
known_macs = None
net_data = args.network_data.read()
if args.kind == "eni":
pre_ns = eni.convert_eni_data(net_data)
ns = network_state.parse_net_config_data(pre_ns)
elif args.kind == "yaml":
pre_ns = yaml.load(net_data)
if 'network' in pre_ns:
pre_ns = pre_ns.get('network')
if args.debug:
sys.stderr.write('\n'.join(
["Input YAML",
yaml.dump(pre_ns, default_flow_style=False, indent=4), ""]))
ns = network_state.parse_net_config_data(pre_ns)
elif args.kind == 'network_data.json':
pre_ns = openstack.convert_net_json(
json.loads(net_data), known_macs=known_macs)
ns = network_state.parse_net_config_data(pre_ns)
elif args.kind == 'azure-imds':
pre_ns = azure.parse_network_config(json.loads(net_data))
ns = network_state.parse_net_config_data(pre_ns)
if not ns:
raise RuntimeError("No valid network_state object created from"
"input data")
if args.debug:
sys.stderr.write('\n'.join([
"", "Internal State",
yaml.dump(ns, default_flow_style=False, indent=4), ""]))
distro_cls = distros.fetch(args.distro)
distro = distro_cls(args.distro, {}, None)
config = {}
if args.output_kind == "eni":
r_cls = eni.Renderer
config = distro.renderer_configs.get('eni')
elif args.output_kind == "netplan":
r_cls = netplan.Renderer
config = distro.renderer_configs.get('netplan')
else:
r_cls = sysconfig.Renderer
config = distro.renderer_configs.get('sysconfig')
r = r_cls(config=config)
sys.stderr.write(''.join([
"Read input format '%s' from '%s'.\n" % (
args.kind, args.network_data.name),
"Wrote output format '%s' to '%s'\n" % (
args.output_kind, args.directory)]) + "\n")
r.render_network_state(network_state=ns, target=args.directory)
if __name__ == '__main__':
args = get_parser().parse_args()
handle_args(NAME, args)
# vi: ts=4 expandtab
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