volume: Volume names are optional

Who knew?

Change-Id: I1c1a811c0db59250e8a20a87f25c2662bc3ab3e8
Signed-off-by: Stephen Finucane <sfinucan@redhat.com>

openstackclient/tests/unit/volume/v2/test_volume.py

@@ -108,11 +108,9 @@ class TestVolumeCreate(TestVolume):
     def test_volume_create_min_options(self):
         arglist = [
             '--size', str(self.new_volume.size),
-            self.new_volume.name,
         ]
         verifylist = [
             ('size', self.new_volume.size),
-            ('name', self.new_volume.name),
         ]
         parsed_args = self.check_parser(self.cmd, arglist, verifylist)
 
@@ -124,7 +122,7 @@ class TestVolumeCreate(TestVolume):
         self.volumes_mock.create.assert_called_with(
             size=self.new_volume.size,
             snapshot_id=None,
-            name=self.new_volume.name,
+            name=None,
             description=None,
             volume_type=None,
             availability_zone=None,

openstackclient/volume/v2/volume.py

@@ -82,10 +82,11 @@ class CreateVolume(command.ShowOne):
     _description = _("Create new volume")
 
     def get_parser(self, prog_name):
-        parser = super(CreateVolume, self).get_parser(prog_name)
+        parser = super().get_parser(prog_name)
         parser.add_argument(
             "name",
             metavar="<name>",
+            nargs="?",
             help=_("Volume name"),
         )
         parser.add_argument(

releasenotes/notes/optional-volume-name-ffbefe463a598b6c.yaml

@@ -0,0 +1,4 @@
+---
+features:
+  - |
+    The ``<name>`` argument for the ``volume create`` command is now optional.