1 files changed, 115 insertions, 0 deletions
diff --git a/cloudinit/cmd/devel/net_convert.py b/cloudinit/cmd/devel/net_convert.py
new file mode 100755
index 00000000..1ec08a3c
--- /dev/null
+++ b/cloudinit/cmd/devel/net_convert.py
@@ -0,0 +1,115 @@
+# 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.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'],
+                        required=True)
+    parser.add_argument("-d", "--directory",
+                        metavar="PATH",
+                        help="directory to place output in",
+                        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)
+    else:
+        pre_ns = openstack.convert_net_json(
+            json.loads(net_data), known_macs=known_macs)
+        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), ""]))
+    if args.output_kind == "eni":
+        r_cls = eni.Renderer
+    elif args.output_kind == "netplan":
+        r_cls = netplan.Renderer
+    else:
+        r_cls = sysconfig.Renderer
+
+    r = r_cls()
+    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