Rework nova modules and states

Closes-issue: https://mirantis.jira.com/browse/PROD-20787
Change-Id: If9ea6ff8c53c876e678180c3df3792d198df2ec0
diff --git a/_modules/novav21/flavors.py b/_modules/novav21/flavors.py
new file mode 100644
index 0000000..53cd7a4
--- /dev/null
+++ b/_modules/novav21/flavors.py
@@ -0,0 +1,81 @@
+#    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.
+
+import common
+
+# Function alias to not shadow built-ins
+__func_alias__ = {
+    'list_': 'list'
+}
+
+
+@common.function_descriptor('update', 'Flavor extra specs', 'extra_specs')
+@common.send('post')
+def add_extra_specs(flavor_id, **kwargs):
+    # NOTE: flavor_id can be any string, don't convert flavor name to uuid
+    url = '/flavors/{flavor_id}/os-extra_specs'.format(flavor_id=flavor_id)
+    return url, {'json': {"extra_specs": kwargs}}
+
+
+@common.function_descriptor('create', 'Flavor', 'flavor')
+@common.send('post')
+def create(name, vcpus, ram, disk, **kwargs):
+    """Create flavor(s)."""
+    url = '/flavors'
+    req = {'flavor': {'name': name, 'vcpus': vcpus, 'ram': ram, 'disk': disk}}
+    req['flavor'].update(kwargs)
+    return url, {'json': req}
+
+
+@common.function_descriptor('delete', 'Flavor')
+@common.send('delete')
+def delete(flavor_id, **kwargs):
+    """Delete flavor."""
+    # NOTE: flavor_id can be any string, don't convert flavor name to uuid
+    url = '/flavors/{flavor_id}'.format(flavor_id=flavor_id)
+    return url, {}
+
+
+@common.function_descriptor('update', 'Flavor extra specs')
+@common.send('delete')
+def delete_extra_spec(flavor_id, key_name, **kwargs):
+    # NOTE: flavor_id can be any string, don't convert flavor name to uuid
+    url = '/flavors/{flavor_id}/os-extra_specs/{key_name}'.format(
+        flavor_id=flavor_id, key_name=key_name)
+    return url, {}
+
+
+@common.function_descriptor('find', 'Flavor', 'flavor')
+@common.send('get')
+def get(flavor_id, **kwargs):
+    """Return one flavor."""
+    # NOTE: flavor_id can be any string, don't convert flavor name to uuid
+    url = '/flavors/{flavor_id}'.format(flavor_id=flavor_id)
+    return url, {}
+
+
+@common.function_descriptor('find', 'Flavor extra specs', 'extra_specs')
+@common.send('get')
+def get_extra_specs(flavor_id, **kwargs):
+    # NOTE: flavor_id can be any string, don't convert flavor name to uuid
+    url = '/flavors/{flavor_id}/os-extra_specs'.format(flavor_id=flavor_id)
+    return url, {}
+
+
+@common.function_descriptor('find', 'Flavor', 'flavors')
+@common.send('get')
+def list_(detail=False, **kwargs):
+    """Return list of flavors."""
+    url = '/flavors'
+    if detail:
+        url = '%s/detail' % url
+    return url, {}