Set resource_url when getting all ports or portgroups

Since the default value resource_url is None, make sure the
parameter is set to 'ports' when getting all ports.

Change-Id: Id603ae5a4a802dfc8f866b15c8d327d95eba9310

ironic/api/controllers/v1/port.py

@@ -407,10 +407,12 @@ class PortsController(rest.RestController):
                 and not uuidutils.is_uuid_like(node)):
                 raise exception.NotAcceptable()
 
+        resource_url = 'ports'
         return self._get_ports_collection(node_uuid or node, address,
                                           portgroup, marker, limit, sort_key,
-                                          sort_dir, fields=fields,
-                                          detail=detail, project=project)
+                                          sort_dir, resource_url=resource_url,
+                                          fields=fields, detail=detail,
+                                          project=project)
 
     @METRICS.timer('PortsController.detail')
     @method.expose()

ironic/api/controllers/v1/portgroup.py

@@ -283,10 +283,12 @@ class PortgroupsController(pecan.rest.RestController):
         fields = api_utils.get_request_return_fields(fields, detail,
                                                      _DEFAULT_RETURN_FIELDS)
 
+        resource_url = 'portgroups'
         return self._get_portgroups_collection(node, address,
                                                marker, limit,
                                                sort_key, sort_dir,
                                                fields=fields,
+                                               resource_url=resource_url,
                                                detail=detail,
                                                project=project)
 

ironic/tests/unit/api/controllers/v1/test_node.py

@@ -1495,6 +1495,7 @@ class TestListNodes(test_api_base.BaseApiTest):
                              headers=headers)
         self.assertEqual(1, len(data['portgroups']))
         self.assertIn('next', data)
+        self.assertIn('portgroups', data['next'])
 
     def test_portgroups_subresource_link(self):
         node = obj_utils.create_test_node(self.context)
@@ -1533,6 +1534,7 @@ class TestListNodes(test_api_base.BaseApiTest):
         data = self.get_json('/nodes/%s/ports?limit=1' % node.uuid)
         self.assertEqual(1, len(data['ports']))
         self.assertIn('next', data)
+        self.assertIn('ports', data['next'])
 
     def test_ports_subresource_noid(self):
         node = obj_utils.create_test_node(self.context)

releasenotes/notes/fix_pagination_resource_url_ports-8d2696a6a7ab012f.yaml

@@ -0,0 +1,6 @@
+---
+fixes:
+  - |
+    Fixes an issue where clients would get a 404 due to the port and
+    portgroups pagination breaking at max_limit due to an uninitialised
+    resource_url.