Add support for glance cache

Change-Id: I539807d329b9529580b298cc96172c3a120950e1

openstack/image/v2/_proxy.py

@@ -15,6 +15,7 @@ import time
 import warnings
 
 from openstack import exceptions
+from openstack.image.v2 import cache as _cache
 from openstack.image.v2 import image as _image
 from openstack.image.v2 import member as _member
 from openstack.image.v2 import metadef_namespace as _metadef_namespace
@@ -50,6 +51,7 @@ def _get_name_and_filename(name, image_format):
 class Proxy(proxy.Proxy):
 
     _resource_registry = {
+        "cache": _cache.Cache,
         "image": _image.Image,
         "image_member": _member.Member,
         "metadef_namespace": _metadef_namespace.MetadefNamespace,
@@ -72,6 +74,10 @@ class Proxy(proxy.Proxy):
     _SHADE_IMAGE_SHA256_KEY = 'owner_specified.shade.sha256'
     _SHADE_IMAGE_OBJECT_KEY = 'owner_specified.shade.object'
 
+    # ====== CACHE MANAGEMENT======
+    def get_image_cache(self):
+        return self._get(_cache.Cache, requires_id=False)
+
     # ====== IMAGES ======
     def create_image(
         self,

openstack/image/v2/cache.py

@@ -0,0 +1,33 @@
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+from openstack import resource
+
+
+class CachedImage(resource.Resource):
+    image_id = resource.Body('image_id')
+    hits = resource.Body('hits')
+    last_accessed = resource.Body('last_accessed')
+    last_modified = resource.Body('last_modified')
+    size = resource.Body('size')
+
+
+class Cache(resource.Resource):
+    base_path = '/cache'
+
+    allow_fetch = True
+
+    _max_microversion = '2.14'
+
+    cached_images = resource.Body('cached_images', type=list,
+                                  list_type=CachedImage)
+    queued_images = resource.Body('queued_images', type=list)

openstack/tests/unit/image/v2/test_cache.py

@@ -0,0 +1,45 @@
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+from openstack.image.v2 import cache
+from openstack.tests.unit import base
+
+
+EXAMPLE = {
+    'cached_images': [
+        {'hits': 0,
+         'image_id': '1a56983c-f71f-490b-a7ac-6b321a18935a',
+         'last_accessed': 1671699579.444378,
+         'last_modified': 1671699579.444378,
+         'size': 0},
+    ],
+    'queued_images': [
+        '3a4560a1-e585-443e-9b39-553b46ec92d1',
+        '6f99bf80-2ee6-47cf-acfe-1f1fabb7e810'
+    ]
+}
+
+
+class TestCache(base.TestCase):
+    def test_basic(self):
+        sot = cache.Cache()
+        self.assertIsNone(sot.resource_key)
+        self.assertEqual('/cache', sot.base_path)
+        self.assertTrue(sot.allow_fetch)
+
+    def test_make_it(self):
+        sot = cache.Cache(**EXAMPLE)
+        self.assertEqual(
+            [cache.CachedImage(**e) for e in EXAMPLE['cached_images']],
+            sot.cached_images,
+        )
+        self.assertEqual(EXAMPLE['queued_images'], sot.queued_images)

openstack/tests/unit/image/v2/test_proxy.py

@@ -17,6 +17,7 @@ import requests
 
 from openstack import exceptions
 from openstack.image.v2 import _proxy
+from openstack.image.v2 import cache as _cache
 from openstack.image.v2 import image as _image
 from openstack.image.v2 import member as _member
 from openstack.image.v2 import metadef_namespace as _metadef_namespace
@@ -882,3 +883,15 @@ class TestMetadefSchema(TestImageProxy):
                 'requires_id': False,
             },
         )
+
+
+class TestCache(TestImageProxy):
+    def test_image_cache_get(self):
+        self._verify(
+            "openstack.proxy.Proxy._get",
+            self.proxy.get_image_cache,
+            expected_args=[_cache.Cache],
+            expected_kwargs={
+                'requires_id': False
+            },
+        )

releasenotes/notes/add-image-cache-support-3f8c13550a84d749.yaml

@@ -0,0 +1,4 @@
+---
+features:
+  - |
+    Add support for glance Cache API.