159 lines
6.1 KiB
Python
159 lines
6.1 KiB
Python
#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from heat.common import exception
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from heat.common.i18n import _
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from heat.engine import constraints
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from heat.engine import properties
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from heat.engine import resource
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from heat.engine import support
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class CinderVolumeType(resource.Resource):
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"""A resource for creating cinder volume types.
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Volume type resource allows to define, whether volume, which will be use
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this type, will public and which projects are allowed to work with it.
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Also, there can be some user-defined metadata.
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Note that default cinder security policy usage of this resource
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is limited to being used by administrators only.
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"""
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support_status = support.SupportStatus(version='2015.1')
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default_client_name = 'cinder'
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entity = 'volume_types'
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PROPERTIES = (
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NAME, METADATA, IS_PUBLIC, DESCRIPTION, PROJECTS,
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) = (
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'name', 'metadata', 'is_public', 'description', 'projects',
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)
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properties_schema = {
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NAME: properties.Schema(
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properties.Schema.STRING,
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_('Name of the volume type.'),
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required=True,
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update_allowed=True,
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),
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METADATA: properties.Schema(
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properties.Schema.MAP,
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_('The extra specs key and value pairs of the volume type.'),
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update_allowed=True
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),
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IS_PUBLIC: properties.Schema(
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properties.Schema.BOOLEAN,
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_('Whether the volume type is accessible to the public.'),
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default=True,
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support_status=support.SupportStatus(version='5.0.0'),
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),
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DESCRIPTION: properties.Schema(
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properties.Schema.STRING,
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_('Description of the volume type.'),
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update_allowed=True,
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support_status=support.SupportStatus(version='5.0.0'),
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),
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PROJECTS: properties.Schema(
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properties.Schema.LIST,
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_('Projects to add volume type access to. NOTE: This '
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'property is only supported since Cinder API V2.'),
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support_status=support.SupportStatus(version='5.0.0'),
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update_allowed=True,
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schema=properties.Schema(
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properties.Schema.STRING,
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constraints=[
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constraints.CustomConstraint('keystone.project')
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],
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),
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default=[],
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),
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}
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def _add_projects_access(self, projects):
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for project in projects:
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project_id = self.client_plugin('keystone').get_project_id(project)
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self.cinder().volume_type_access.add_project_access(
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self.resource_id, project_id)
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def handle_create(self):
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args = {
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'name': self.properties[self.NAME],
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'is_public': self.properties[self.IS_PUBLIC],
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'description': self.properties[self.DESCRIPTION]
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}
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volume_type = self.client().volume_types.create(**args)
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self.resource_id_set(volume_type.id)
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vtype_metadata = self.properties[self.METADATA]
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if vtype_metadata:
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volume_type.set_keys(vtype_metadata)
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self._add_projects_access(self.properties[self.PROJECTS])
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def handle_update(self, json_snippet, tmpl_diff, prop_diff):
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"""Update the name, description and metadata for volume type."""
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update_args = {}
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# Update the name, description of cinder volume type
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if self.DESCRIPTION in prop_diff:
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update_args['description'] = prop_diff.get(self.DESCRIPTION)
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if self.NAME in prop_diff:
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update_args['name'] = prop_diff.get(self.NAME)
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if update_args:
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self.client().volume_types.update(self.resource_id, **update_args)
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# Update the key-value pairs of cinder volume type.
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if self.METADATA in prop_diff:
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volume_type = self.client().volume_types.get(self.resource_id)
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old_keys = volume_type.get_keys()
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volume_type.unset_keys(old_keys)
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new_keys = prop_diff.get(self.METADATA)
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if new_keys is not None:
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volume_type.set_keys(new_keys)
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# Update the projects access for volume type
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if self.PROJECTS in prop_diff:
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old_access_list = self.cinder().volume_type_access.list(
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self.resource_id)
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old_projects = [ac._info['project_id'] for ac in old_access_list]
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new_projects = prop_diff.get(self.PROJECTS)
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# first remove the old projects access
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for project_id in (set(old_projects) - set(new_projects)):
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self.cinder().volume_type_access.remove_project_access(
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self.resource_id, project_id)
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# add the new projects access
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self._add_projects_access(set(new_projects) - set(old_projects))
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# TODO(huangtianhua): remove this method when bug #1479641 is fixed.
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def _show_resource(self):
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vtype = self.client().volume_types.get(self.resource_id)
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return vtype._info
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def validate(self):
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super(CinderVolumeType, self).validate()
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if self.properties[self.PROJECTS]:
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if self.cinder().volume_api_version == 1:
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raise exception.NotSupported(
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feature=_('Using Cinder API V1, volume type access'))
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if self.properties[self.IS_PUBLIC]:
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msg = (_('Can not specify property "%s" '
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'if the volume type is public.') % self.PROJECTS)
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raise exception.StackValidationFailed(message=msg)
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def resource_mapping():
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return {
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'OS::Cinder::VolumeType': CinderVolumeType
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}
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