commit ac4bdb4bca02104d82553fc9220ec9ee311c7d8b
Author: Mark Chappell <mchappel@redhat.com>
Date:   Thu Oct 8 09:34:56 2020 +0200

    Add support for updating cinder (v3) volume types
    
    https://docs.openstack.org/api-ref/block-storage/v3/index.html?expanded=update-a-volume-type-detail#update-a-volume-type
    
    v3 volume types permit updates.
    
    Change-Id: I777687e8e3e310ad0f845799b595c12fbbf250c5

diff --git a/openstack/block_storage/v3/_proxy.py b/openstack/block_storage/v3/_proxy.py
index d0f07f0..6314329 100644
--- a/openstack/block_storage/v3/_proxy.py
+++ b/openstack/block_storage/v3/_proxy.py
@@ -162,6 +162,19 @@ class Proxy(_base_proxy.BaseBlockStorageProxy):
         """
         self._delete(_type.Type, type, ignore_missing=ignore_missing)
 
+    def update_type(self, type, **attrs):
+        """Update a type
+
+        :param type: The value can be either the ID of a type or a
+                     :class:`~openstack.volume.v3.type.Type` instance.
+        :param dict attrs: The attributes to update on the type
+                           represented by ``value``.
+
+        :returns: The updated type
+        :rtype: :class:`~openstack.volume.v3.type.Type`
+        """
+        return self._update(_type.Type, type, **attrs)
+
     def get_volume(self, volume):
         """Get a single volume
 
diff --git a/openstack/block_storage/v3/type.py b/openstack/block_storage/v3/type.py
index 7e3c81a..f68c9ea 100644
--- a/openstack/block_storage/v3/type.py
+++ b/openstack/block_storage/v3/type.py
@@ -23,6 +23,7 @@ class Type(resource.Resource):
     allow_create = True
     allow_delete = True
     allow_list = True
+    allow_commit = True
 
     _query_mapping = resource.QueryParameters("is_public")
 
diff --git a/openstack/tests/unit/block_storage/v3/test_proxy.py b/openstack/tests/unit/block_storage/v3/test_proxy.py
index 43b6c91..c3e9cbc 100644
--- a/openstack/tests/unit/block_storage/v3/test_proxy.py
+++ b/openstack/tests/unit/block_storage/v3/test_proxy.py
@@ -72,6 +72,9 @@ class TestVolumeProxy(test_proxy_base.TestProxyBase):
     def test_type_delete_ignore(self):
         self.verify_delete(self.proxy.delete_type, type.Type, True)
 
+    def test_type_update(self):
+        self.verify_update(self.proxy.update_type, type.Type)
+
     def test_volume_get(self):
         self.verify_get(self.proxy.get_volume, volume.Volume)
 
diff --git a/openstack/tests/unit/block_storage/v3/test_type.py b/openstack/tests/unit/block_storage/v3/test_type.py
index 5bdcff1..01320a3 100644
--- a/openstack/tests/unit/block_storage/v3/test_type.py
+++ b/openstack/tests/unit/block_storage/v3/test_type.py
@@ -35,7 +35,7 @@ class TestType(base.TestCase):
         self.assertTrue(sot.allow_fetch)
         self.assertTrue(sot.allow_delete)
         self.assertTrue(sot.allow_list)
-        self.assertFalse(sot.allow_commit)
+        self.assertTrue(sot.allow_commit)
 
     def test_new(self):
         sot = type.Type.new(id=FAKE_ID)