heat/heat/engine/resources/volume.py

102 lines
3.6 KiB
Python

# vim: tabstop=4 shiftwidth=4 softtabstop=4
#
# 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 eventlet
from heat.openstack.common import log as logging
from heat.common import exception
from heat.engine import clients
from heat.engine import resource
logger = logging.getLogger(__name__)
class Volume(resource.Resource):
properties_schema = {'AvailabilityZone': {'Type': 'String',
'Required': True},
'Size': {'Type': 'Number'},
'SnapshotId': {'Type': 'String'},
'Tags': {'Type': 'List'}}
def __init__(self, name, json_snippet, stack):
super(Volume, self).__init__(name, json_snippet, stack)
def handle_create(self):
vol = self.cinder().volumes.create(
self.properties['Size'],
display_name=self.physical_resource_name(),
display_description=self.physical_resource_name())
while vol.status == 'creating':
eventlet.sleep(1)
vol.get()
if vol.status == 'available':
self.resource_id_set(vol.id)
else:
raise exception.Error(vol.status)
def handle_update(self, json_snippet):
return self.UPDATE_REPLACE
def handle_delete(self):
if self.resource_id is not None:
try:
vol = self.cinder().volumes.get(self.resource_id)
if vol.status == 'in-use':
logger.warn('cant delete volume when in-use')
raise exception.Error("Volume in use")
self.cinder().volumes.delete(self.resource_id)
except clients.cinder_exceptions.NotFound:
pass
class VolumeAttachment(resource.Resource):
properties_schema = {'InstanceId': {'Type': 'String',
'Required': True},
'VolumeId': {'Type': 'String',
'Required': True},
'Device': {'Type': "String",
'Required': True,
'AllowedPattern': '/dev/vd[b-z]'}}
def __init__(self, name, json_snippet, stack):
super(VolumeAttachment, self).__init__(name, json_snippet, stack)
def handle_create(self):
server_id = self.properties['InstanceId']
volume_id = self.properties['VolumeId']
dev = self.properties['Device']
inst = self.stack.clients.attach_volume_to_instance(server_id,
volume_id,
dev)
self.resource_id_set(inst)
def handle_update(self, json_snippet):
return self.UPDATE_REPLACE
def handle_delete(self):
server_id = self.properties['InstanceId']
volume_id = self.properties['VolumeId']
self.stack.clients.detach_volume_from_instance(server_id, volume_id)
def resource_mapping():
return {
'AWS::EC2::Volume': Volume,
'AWS::EC2::VolumeAttachment': VolumeAttachment,
}