Adds support force delete resources

This patch adds '--force' parameter to vnf delete command,
to force delete VNF instances.

e.g: openstack vnf delete --force VNF1

blueprint force-delete-resources

Change-Id: I20aee4ecb66643dfa5fad490956d898f7e851411

tackerclient/osc/v1/vnfm/vnf.py

@@ -189,18 +189,32 @@ class DeleteVNF(command.Command):
             metavar="<VNF>",
             nargs="+",
             help=_("VNF(s) to delete (name or ID)"))
+        parser.add_argument(
+            '--force',
+            default=False,
+            action='store_true',
+            help=_('Force delete VNF instance'))
         return parser
 
+    def args2body(self, parsed_args):
+        body = dict()
+        if parsed_args.force:
+            body[_VNF] = dict()
+            body[_VNF]['attributes'] = dict()
+            body[_VNF]['attributes']['force'] = True
+        return body
+
     def take_action(self, parsed_args):
         client = self.app.client_manager.tackerclient
         failure = False
         deleted_ids = []
         failed_items = {}
+        body = self.args2body(parsed_args)
         for resource_id in parsed_args.vnf:
             try:
                 obj = tackerV10.find_resourceid_by_name_or_id(
                     client, _VNF, resource_id)
-                client.delete_vnf(obj)
+                client.delete_vnf(obj, body)
                 deleted_ids.append(resource_id)
             except Exception as e:
                 failure = True

tackerclient/tacker/v1_0/__init__.py

@@ -520,6 +520,7 @@ class DeleteCommand(TackerCommand):
             'ids', nargs='+',
             metavar=self.resource.upper(),
             help=help_str % self.resource)
+        self.add_known_arguments(parser)
         return parser
 
     def run(self, parsed_args):
@@ -530,6 +531,8 @@ class DeleteCommand(TackerCommand):
         tacker_client.format = parsed_args.request_format
         obj_deleter = getattr(tacker_client,
                               "delete_%s" % self.resource)
+        body = self.args2body(parsed_args)
+
         for resource_id in parsed_args.ids:
             try:
                 if self.allow_names:
@@ -537,7 +540,10 @@ class DeleteCommand(TackerCommand):
                         tacker_client, self.resource, resource_id)
                 else:
                     _id = resource_id
-                obj_deleter(_id)
+                if body:
+                    obj_deleter(_id, body)
+                else:
+                    obj_deleter(_id)
                 deleted_ids.append(resource_id)
             except Exception as e:
                 failure = True

tackerclient/tacker/v1_0/vnfm/vnf.py

@@ -179,8 +179,23 @@ class DeleteVNF(tackerV10.DeleteCommand):
     """Delete given VNF(s)."""
 
     resource = _VNF
+    remove_output_fields = ["attributes"]
     deleted_msg = {'vnf': 'delete initiated'}
 
+    def add_known_arguments(self, parser):
+        parser.add_argument(
+            '--force',
+            default=False,
+            action='store_true',
+            help=_('Force delete VNF instance'))
+
+    def args2body(self, parsed_args):
+        body = dict()
+        if parsed_args.force:
+            body[self.resource] = dict()
+            body[self.resource]['attributes'] = {'force': True}
+        return body
+
 
 class ListVNFResources(tackerV10.ListCommand):
     """List resources of a VNF like VDU, CP, etc."""

tackerclient/tests/unit/test_cli10.py

@@ -611,10 +611,18 @@ class CLITestV10Base(testtools.TestCase):
             args.extend(['--request-format', self.format])
             cmd_parser = cmd.get_parser("delete_" + resource)
             shell.run_command(cmd, cmd_parser, args)
-            mock_req.assert_called_once_with(
-                end_url(path % myid, format=self.format), 'DELETE',
-                body=None,
-                headers=test_utils.ContainsKeyValue('X-Auth-Token', TOKEN))
+            if '--force' in args:
+                body_str = '{"' + resource + \
+                           '": {"attributes": {"force": true}}}'
+                mock_req.assert_called_once_with(
+                    end_url(path % myid, format=self.format), 'DELETE',
+                    body=body_str,
+                    headers=test_utils.ContainsKeyValue('X-Auth-Token', TOKEN))
+            else:
+                mock_req.assert_called_once_with(
+                    end_url(path % myid, format=self.format), 'DELETE',
+                    body=None,
+                    headers=test_utils.ContainsKeyValue('X-Auth-Token', TOKEN))
         mock_get.assert_called_once_with()
         _str = self.fake_stdout.make_string()
         msg = 'All specified %(resource)s(s) %(msg)s successfully\n' % {

tackerclient/tests/unit/vm/test_cli10_vnf.py

@@ -187,12 +187,18 @@ class CLITestV10VmVNFJSON(test_cli10.CLITestV10Base):
                                    [my_id, '--%s' % key, value],
                                    {key: value})
 
-    def test_delete_vnf(self):
+    def test_delete_vnf_without_force(self):
         cmd = vnf.DeleteVNF(test_cli10.MyApp(sys.stdout), None)
         my_id = 'my-id'
         args = [my_id]
         self._test_delete_resource(self._RESOURCE, cmd, my_id, args)
 
+    def test_delete_vnf_with_force(self):
+        cmd = vnf.DeleteVNF(test_cli10.MyApp(sys.stdout), None)
+        my_id = 'my-id'
+        args = [my_id, '--force']
+        self._test_delete_resource(self._RESOURCE, cmd, my_id, args)
+
     def test_list_vnf_resources(self):
         cmd = vnf.ListVNFResources(test_cli10.MyApp(sys.stdout), None)
         base_args = [self.test_id]

tackerclient/v1_0/client.py

@@ -438,8 +438,8 @@ class Client(ClientBase):
         return self.post(self.vnfs_path, body=body)
 
     @APIParamsCall
-    def delete_vnf(self, vnf):
-        return self.delete(self.vnf_path % vnf)
+    def delete_vnf(self, vnf, body=None):
+        return self.delete(self.vnf_path % vnf, body=body)
 
     @APIParamsCall
     def update_vnf(self, vnf, body):