Add option to allow filtering by router on port list

Added support to allow filtering ports via --router
option to list ports that are applicable to specific router.

Partial-bug: #1519909
Partially-implements: blueprint neutron-client

Change-Id: I6dd958603909f641735c821a62fc0d45afd5c7ec

1 files changed, 18 insertions, 1 deletions

diff --git a/openstackclient/network/v2/port.py b/openstackclient/network/v2/port.py
index b618a4b0..9894e6da 100644
--- a/openstackclient/network/v2/port.py
+++ b/openstackclient/network/v2/port.py
@@ -243,6 +243,16 @@ class DeletePort(command.Command):
 class ListPort(command.Lister):
     """List ports"""
 
+    def get_parser(self, prog_name):
+        parser = super(ListPort, self).get_parser(prog_name)
+        parser.add_argument(
+            '--router',
+            metavar='<router>',
+            dest='router',
+            help='List only ports attached to this router (name or ID)',
+        )
+        return parser
+
     def take_action(self, parsed_args):
         client = self.app.client_manager.network
 
@@ -259,7 +269,14 @@ class ListPort(command.Lister):
             'Fixed IP Addresses',
         )
 
-        data = client.ports()
+        filters = {}
+        if parsed_args.router:
+            _router = client.find_router(parsed_args.router,
+                                         ignore_missing=False)
+            filters = {'device_id': _router.id}
+
+        data = client.ports(**filters)
+
         return (column_headers,
                 (utils.get_item_properties(
                     s, columns,