401 lines
13 KiB
Python
401 lines
13 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
|
|
|
|
# Copyright (c) 2011 X.commerce, a business unit of eBay Inc.
|
|
# Copyright 2010 United States Government as represented by the
|
|
# Administrator of the National Aeronautics and Space Administration.
|
|
# Copyright 2011 Piston Cloud Computing, Inc.
|
|
# All Rights Reserved.
|
|
#
|
|
# 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.
|
|
"""
|
|
SQLAlchemy models for cinder data.
|
|
"""
|
|
|
|
from sqlalchemy import Column, Integer, String, Text, schema
|
|
from sqlalchemy.exc import IntegrityError
|
|
from sqlalchemy.ext.declarative import declarative_base
|
|
from sqlalchemy import ForeignKey, DateTime, Boolean
|
|
from sqlalchemy.orm import relationship, backref, object_mapper
|
|
|
|
from cinder.db.sqlalchemy.session import get_session
|
|
|
|
from cinder import exception
|
|
from cinder import flags
|
|
from cinder.openstack.common import timeutils
|
|
|
|
|
|
FLAGS = flags.FLAGS
|
|
BASE = declarative_base()
|
|
|
|
|
|
class CinderBase(object):
|
|
"""Base class for Cinder Models."""
|
|
__table_args__ = {'mysql_engine': 'InnoDB'}
|
|
__table_initialized__ = False
|
|
created_at = Column(DateTime, default=timeutils.utcnow)
|
|
updated_at = Column(DateTime, onupdate=timeutils.utcnow)
|
|
deleted_at = Column(DateTime)
|
|
deleted = Column(Boolean, default=False)
|
|
metadata = None
|
|
|
|
def save(self, session=None):
|
|
"""Save this object."""
|
|
if not session:
|
|
session = get_session()
|
|
session.add(self)
|
|
try:
|
|
session.flush()
|
|
except IntegrityError, e:
|
|
if str(e).endswith('is not unique'):
|
|
raise exception.Duplicate(str(e))
|
|
else:
|
|
raise
|
|
|
|
def delete(self, session=None):
|
|
"""Delete this object."""
|
|
self.deleted = True
|
|
self.deleted_at = timeutils.utcnow()
|
|
self.save(session=session)
|
|
|
|
def __setitem__(self, key, value):
|
|
setattr(self, key, value)
|
|
|
|
def __getitem__(self, key):
|
|
return getattr(self, key)
|
|
|
|
def get(self, key, default=None):
|
|
return getattr(self, key, default)
|
|
|
|
def __iter__(self):
|
|
self._i = iter(object_mapper(self).columns)
|
|
return self
|
|
|
|
def next(self):
|
|
n = self._i.next().name
|
|
return n, getattr(self, n)
|
|
|
|
def update(self, values):
|
|
"""Make the model object behave like a dict."""
|
|
for k, v in values.iteritems():
|
|
setattr(self, k, v)
|
|
|
|
def iteritems(self):
|
|
"""Make the model object behave like a dict.
|
|
|
|
Includes attributes from joins."""
|
|
local = dict(self)
|
|
joined = dict([(k, v) for k, v in self.__dict__.iteritems()
|
|
if not k[0] == '_'])
|
|
local.update(joined)
|
|
return local.iteritems()
|
|
|
|
|
|
class Service(BASE, CinderBase):
|
|
"""Represents a running service on a host."""
|
|
|
|
__tablename__ = 'services'
|
|
id = Column(Integer, primary_key=True)
|
|
host = Column(String(255)) # , ForeignKey('hosts.id'))
|
|
binary = Column(String(255))
|
|
topic = Column(String(255))
|
|
report_count = Column(Integer, nullable=False, default=0)
|
|
disabled = Column(Boolean, default=False)
|
|
availability_zone = Column(String(255), default='cinder')
|
|
|
|
|
|
class CinderNode(BASE, CinderBase):
|
|
"""Represents a running cinder service on a host."""
|
|
|
|
__tablename__ = 'cinder_nodes'
|
|
id = Column(Integer, primary_key=True)
|
|
service_id = Column(Integer, ForeignKey('services.id'), nullable=True)
|
|
|
|
|
|
class Volume(BASE, CinderBase):
|
|
"""Represents a block storage device that can be attached to a vm."""
|
|
__tablename__ = 'volumes'
|
|
id = Column(String(36), primary_key=True)
|
|
|
|
@property
|
|
def name(self):
|
|
return FLAGS.volume_name_template % self.id
|
|
|
|
ec2_id = Column(Integer)
|
|
user_id = Column(String(255))
|
|
project_id = Column(String(255))
|
|
|
|
snapshot_id = Column(String(36))
|
|
|
|
host = Column(String(255)) # , ForeignKey('hosts.id'))
|
|
size = Column(Integer)
|
|
availability_zone = Column(String(255)) # TODO(vish): foreign key?
|
|
instance_uuid = Column(String(36))
|
|
mountpoint = Column(String(255))
|
|
attach_time = Column(String(255)) # TODO(vish): datetime
|
|
status = Column(String(255)) # TODO(vish): enum?
|
|
attach_status = Column(String(255)) # TODO(vish): enum
|
|
|
|
scheduled_at = Column(DateTime)
|
|
launched_at = Column(DateTime)
|
|
terminated_at = Column(DateTime)
|
|
|
|
display_name = Column(String(255))
|
|
display_description = Column(String(255))
|
|
|
|
provider_location = Column(String(255))
|
|
provider_auth = Column(String(255))
|
|
|
|
volume_type_id = Column(Integer)
|
|
|
|
|
|
class VolumeMetadata(BASE, CinderBase):
|
|
"""Represents a metadata key/value pair for a volume."""
|
|
__tablename__ = 'volume_metadata'
|
|
id = Column(Integer, primary_key=True)
|
|
key = Column(String(255))
|
|
value = Column(String(255))
|
|
volume_id = Column(String(36), ForeignKey('volumes.id'), nullable=False)
|
|
volume = relationship(Volume, backref="volume_metadata",
|
|
foreign_keys=volume_id,
|
|
primaryjoin='and_('
|
|
'VolumeMetadata.volume_id == Volume.id,'
|
|
'VolumeMetadata.deleted == False)')
|
|
|
|
|
|
class VolumeTypes(BASE, CinderBase):
|
|
"""Represent possible volume_types of volumes offered."""
|
|
__tablename__ = "volume_types"
|
|
id = Column(Integer, primary_key=True)
|
|
name = Column(String(255))
|
|
|
|
volumes = relationship(Volume,
|
|
backref=backref('volume_type', uselist=False),
|
|
foreign_keys=id,
|
|
primaryjoin='and_('
|
|
'Volume.volume_type_id == VolumeTypes.id, '
|
|
'VolumeTypes.deleted == False)')
|
|
|
|
|
|
class VolumeTypeExtraSpecs(BASE, CinderBase):
|
|
"""Represents additional specs as key/value pairs for a volume_type."""
|
|
__tablename__ = 'volume_type_extra_specs'
|
|
id = Column(Integer, primary_key=True)
|
|
key = Column(String(255))
|
|
value = Column(String(255))
|
|
volume_type_id = Column(Integer,
|
|
ForeignKey('volume_types.id'),
|
|
nullable=False)
|
|
volume_type = relationship(
|
|
VolumeTypes,
|
|
backref="extra_specs",
|
|
foreign_keys=volume_type_id,
|
|
primaryjoin='and_('
|
|
'VolumeTypeExtraSpecs.volume_type_id == VolumeTypes.id,'
|
|
'VolumeTypeExtraSpecs.deleted == False)'
|
|
)
|
|
|
|
|
|
class VolumeGlanceMetadata(BASE, CinderBase):
|
|
"""Glance metadata for a bootable volume."""
|
|
__tablename__ = 'volume_glance_metadata'
|
|
id = Column(Integer, primary_key=True, nullable=False)
|
|
volume_id = Column(String(36), ForeignKey('volumes.id'))
|
|
snapshot_id = Column(String(36), ForeignKey('snapshots.id'))
|
|
key = Column(String(255))
|
|
value = Column(Text)
|
|
volume = relationship(Volume, backref="volume_glance_metadata",
|
|
foreign_keys=volume_id,
|
|
primaryjoin='and_('
|
|
'VolumeGlanceMetadata.volume_id == Volume.id,'
|
|
'VolumeGlanceMetadata.deleted == False)')
|
|
|
|
|
|
class Quota(BASE, CinderBase):
|
|
"""Represents a single quota override for a project.
|
|
|
|
If there is no row for a given project id and resource, then the
|
|
default for the quota class is used. If there is no row for a
|
|
given quota class and resource, then the default for the
|
|
deployment is used. If the row is present but the hard limit is
|
|
Null, then the resource is unlimited.
|
|
"""
|
|
|
|
__tablename__ = 'quotas'
|
|
id = Column(Integer, primary_key=True)
|
|
|
|
project_id = Column(String(255), index=True)
|
|
|
|
resource = Column(String(255))
|
|
hard_limit = Column(Integer, nullable=True)
|
|
|
|
|
|
class QuotaClass(BASE, CinderBase):
|
|
"""Represents a single quota override for a quota class.
|
|
|
|
If there is no row for a given quota class and resource, then the
|
|
default for the deployment is used. If the row is present but the
|
|
hard limit is Null, then the resource is unlimited.
|
|
"""
|
|
|
|
__tablename__ = 'quota_classes'
|
|
id = Column(Integer, primary_key=True)
|
|
|
|
class_name = Column(String(255), index=True)
|
|
|
|
resource = Column(String(255))
|
|
hard_limit = Column(Integer, nullable=True)
|
|
|
|
|
|
class QuotaUsage(BASE, CinderBase):
|
|
"""Represents the current usage for a given resource."""
|
|
|
|
__tablename__ = 'quota_usages'
|
|
id = Column(Integer, primary_key=True)
|
|
|
|
project_id = Column(String(255), index=True)
|
|
resource = Column(String(255))
|
|
|
|
in_use = Column(Integer)
|
|
reserved = Column(Integer)
|
|
|
|
@property
|
|
def total(self):
|
|
return self.in_use + self.reserved
|
|
|
|
until_refresh = Column(Integer, nullable=True)
|
|
|
|
|
|
class Reservation(BASE, CinderBase):
|
|
"""Represents a resource reservation for quotas."""
|
|
|
|
__tablename__ = 'reservations'
|
|
id = Column(Integer, primary_key=True)
|
|
uuid = Column(String(36), nullable=False)
|
|
|
|
usage_id = Column(Integer, ForeignKey('quota_usages.id'), nullable=False)
|
|
|
|
project_id = Column(String(255), index=True)
|
|
resource = Column(String(255))
|
|
|
|
delta = Column(Integer)
|
|
expire = Column(DateTime, nullable=False)
|
|
|
|
|
|
class Snapshot(BASE, CinderBase):
|
|
"""Represents a block storage device that can be attached to a VM."""
|
|
__tablename__ = 'snapshots'
|
|
id = Column(String(36), primary_key=True)
|
|
|
|
@property
|
|
def name(self):
|
|
return FLAGS.snapshot_name_template % self.id
|
|
|
|
@property
|
|
def volume_name(self):
|
|
return FLAGS.volume_name_template % self.volume_id
|
|
|
|
user_id = Column(String(255))
|
|
project_id = Column(String(255))
|
|
|
|
volume_id = Column(String(36))
|
|
status = Column(String(255))
|
|
progress = Column(String(255))
|
|
volume_size = Column(Integer)
|
|
|
|
display_name = Column(String(255))
|
|
display_description = Column(String(255))
|
|
|
|
|
|
class IscsiTarget(BASE, CinderBase):
|
|
"""Represents an iscsi target for a given host."""
|
|
__tablename__ = 'iscsi_targets'
|
|
__table_args__ = (schema.UniqueConstraint("target_num", "host"),
|
|
{'mysql_engine': 'InnoDB'})
|
|
id = Column(Integer, primary_key=True)
|
|
target_num = Column(Integer)
|
|
host = Column(String(255))
|
|
volume_id = Column(String(36), ForeignKey('volumes.id'), nullable=True)
|
|
volume = relationship(Volume,
|
|
backref=backref('iscsi_target', uselist=False),
|
|
foreign_keys=volume_id,
|
|
primaryjoin='and_(IscsiTarget.volume_id==Volume.id,'
|
|
'IscsiTarget.deleted==False)')
|
|
|
|
|
|
class Migration(BASE, CinderBase):
|
|
"""Represents a running host-to-host migration."""
|
|
__tablename__ = 'migrations'
|
|
id = Column(Integer, primary_key=True, nullable=False)
|
|
# NOTE(tr3buchet): the ____compute variables are instance['host']
|
|
source_compute = Column(String(255))
|
|
dest_compute = Column(String(255))
|
|
# NOTE(tr3buchet): dest_host, btw, is an ip address
|
|
dest_host = Column(String(255))
|
|
old_instance_type_id = Column(Integer())
|
|
new_instance_type_id = Column(Integer())
|
|
instance_uuid = Column(String(255),
|
|
ForeignKey('instances.uuid'),
|
|
nullable=True)
|
|
#TODO(_cerberus_): enum
|
|
status = Column(String(255))
|
|
|
|
|
|
class SMFlavors(BASE, CinderBase):
|
|
"""Represents a flavor for SM volumes."""
|
|
__tablename__ = 'sm_flavors'
|
|
id = Column(Integer(), primary_key=True)
|
|
label = Column(String(255))
|
|
description = Column(String(255))
|
|
|
|
|
|
class SMBackendConf(BASE, CinderBase):
|
|
"""Represents the connection to the backend for SM."""
|
|
__tablename__ = 'sm_backend_config'
|
|
id = Column(Integer(), primary_key=True)
|
|
flavor_id = Column(Integer, ForeignKey('sm_flavors.id'), nullable=False)
|
|
sr_uuid = Column(String(255))
|
|
sr_type = Column(String(255))
|
|
config_params = Column(String(2047))
|
|
|
|
|
|
class SMVolume(BASE, CinderBase):
|
|
__tablename__ = 'sm_volume'
|
|
id = Column(String(36), ForeignKey(Volume.id), primary_key=True)
|
|
backend_id = Column(Integer, ForeignKey('sm_backend_config.id'),
|
|
nullable=False)
|
|
vdi_uuid = Column(String(255))
|
|
|
|
|
|
def register_models():
|
|
"""Register Models and create metadata.
|
|
|
|
Called from cinder.db.sqlalchemy.__init__ as part of loading the driver,
|
|
it will never need to be called explicitly elsewhere unless the
|
|
connection is lost and needs to be reestablished.
|
|
"""
|
|
from sqlalchemy import create_engine
|
|
models = (Migration,
|
|
Service,
|
|
SMBackendConf,
|
|
SMFlavors,
|
|
SMVolume,
|
|
Volume,
|
|
VolumeMetadata,
|
|
VolumeTypeExtraSpecs,
|
|
VolumeTypes,
|
|
VolumeGlanceMetadata,
|
|
)
|
|
engine = create_engine(FLAGS.sql_connection, echo=False)
|
|
for model in models:
|
|
model.metadata.create_all(engine)
|