HC2VPP-313: <copy-config> examples using nnclient library

Shows how to configure VPP using nnclient library.

Requires following changes to ODL Netconf (HC2VPP-312):
- <copy-config> support:
  https://git.opendaylight.org/gerrit/#/c/69606/
- various fixes to make ODL Netconf compatible with nnclient:
  https://git.opendaylight.org/gerrit/#/c/71181/

and ncclient library with the following change:
https://github.com/marekgr/ncclient/commit/fbc31b06daf114c11dcb6bf1bcfac9127b2e0062

Change-Id: I3dceb8ead6e6f558a3c76f6c1c3b0ba5f7c52f93
Signed-off-by: Marek Gradzki <mgradzki@cisco.com>

1 files changed, 39 insertions, 0 deletions

diff --git a/examples/ncclient/get_config.py b/examples/ncclient/get_config.py
new file mode 100755
index 000000000..5fdb6da3a
--- /dev/null
+++ b/examples/ncclient/get_config.py
@@ -0,0 +1,39 @@
+#!/usr/bin/env python2
+#
+# Copyright (c) 2018 Cisco and/or its affiliates.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import argparse
+import logging
+from ncclient import manager
+
+
+def _get_config(reply_filename=None, host='localhost', port=2831, username='admin', password='admin'):
+    with manager.connect(host=host, port=port, username=username, password=password, hostkey_verify=False) as m:
+        logger.info("Connected to HC")
+        config = m.get_config(source='running')
+        logger.debug("GetConfig successful:\n%s" % config)
+        if reply_filename:
+            with open(reply_filename, 'w') as f:
+                f.write(config.data_xml)
+        else:
+            print config.data_xml
+
+
+if __name__ == '__main__':
+    logger = logging.getLogger("hc2vpp.examples.get_config")
+    logging.basicConfig(level=logging.WARNING)
+    argparser = argparse.ArgumentParser(description="Obtains VPP configuration using <get-config> RPC")
+    argparser.add_argument('--reply_filename', help="name of XML file to store received configuration")
+    args = argparser.parse_args()
+    _get_config(args.reply_filename)