heat/contrib/cinder_volume_type/cinder_volume_type/resources/cinder_volume_type.py

78 lines
2.5 KiB
Python

#
# 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 heat.common.i18n import _
from heat.engine import properties
from heat.engine import resource
class CinderVolumeType(resource.Resource):
"""
A resource for creating OpenStack virtual hardware templates.
Note that default cinder security policy usage of this resource
is limited to being used by administrators only.
"""
PROPERTIES = (
NAME, METADATA,
) = (
'name', 'metadata',
)
properties_schema = {
NAME: properties.Schema(
properties.Schema.STRING,
_('Name of the volume type.'),
required=True
),
METADATA: properties.Schema(
properties.Schema.MAP,
_('The extra specs key and value pairs of the volume type.'),
update_allowed=True
),
}
def handle_create(self):
vtype_name = self.properties.get(self.NAME)
volume_type = self.cinder().volume_types.create(vtype_name)
self.resource_id_set(volume_type.id)
vtype_metadata = self.properties.get(self.METADATA)
if vtype_metadata:
volume_type.set_keys(vtype_metadata)
def handle_update(self, json_snippet, tmpl_diff, prop_diff):
"""Update the key-value pairs of cinder volume type."""
if self.METADATA in prop_diff:
volume_type = self.cinder().volume_types.get(self.resource_id)
old_keys = volume_type.get_keys()
volume_type.unset_keys(old_keys)
new_keys = prop_diff.get(self.METADATA)
if new_keys is not None:
volume_type.set_keys(new_keys)
def handle_delete(self):
if self.resource_id is None:
return
try:
self.cinder().volume_types.delete(self.resource_id)
except Exception as e:
self.client_plugin('cinder').ignore_not_found(e)
def resource_mapping():
return {
'OS::Cinder::VolumeType': CinderVolumeType
}