OpenStack Orchestration (Heat)
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heat/heat/engine/volume.py

111 lines
4.2 KiB

# 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
import logging
import re
from heat.common import exception
from heat.engine.resources import Resource
logger = logging.getLogger('heat.engine.volume')
class Volume(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.nova('volume').volumes.create(self.properties['Size'],
display_name=self.name,
display_description=self.name)
while vol.status == 'creating':
eventlet.sleep(1)
vol.get()
if vol.status == 'available':
self.instance_id_set(vol.id)
else:
raise exception.Error(vol.status)
def handle_delete(self):
if self.instance_id is not None:
vol = self.nova('volume').volumes.get(self.instance_id)
if vol.status == 'in-use':
logger.warn('cant delete volume when in-use')
raise exception.Error("Volume in use")
self.nova('volume').volumes.delete(self.instance_id)
class VolumeAttachment(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']
logger.warn('Attaching InstanceId %s VolumeId %s Device %s' %
(server_id, volume_id, self.properties['Device']))
volapi = self.nova().volumes
va = volapi.create_server_volume(server_id=server_id,
volume_id=volume_id,
device=self.properties['Device'])
vol = self.nova('volume').volumes.get(va.id)
while vol.status == 'available' or vol.status == 'attaching':
eventlet.sleep(1)
vol.get()
if vol.status == 'in-use':
self.instance_id_set(va.id)
else:
raise exception.Error(vol.status)
def handle_delete(self):
server_id = self.properties['InstanceId']
volume_id = self.properties['VolumeId']
logger.info('VolumeAttachment un-attaching %s %s' %
(server_id, volume_id))
volapi = self.nova().volumes
volapi.delete_server_volume(server_id,
volume_id)
vol = self.nova('volume').volumes.get(volume_id)
logger.info('un-attaching %s, status %s' % (volume_id, vol.status))
while vol.status == 'in-use':
logger.info('trying to un-attach %s, but still %s' %
(volume_id, vol.status))
eventlet.sleep(1)
try:
volapi.delete_server_volume(server_id,
volume_id)
except Exception:
pass
vol.get()