165 lines
5.2 KiB
Python
165 lines
5.2 KiB
Python
# -*- encoding: utf-8 -*-
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#
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# Copyright 2013 Hewlett-Packard Development Company, L.P.
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#
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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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"""
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SQLAlchemy models for baremetal data.
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"""
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import json
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import urlparse
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from oslo.config import cfg
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from sqlalchemy import Boolean, Column, DateTime
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from sqlalchemy import ForeignKey, Integer, Index
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from sqlalchemy import schema, String, Text
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from sqlalchemy.ext.declarative import declarative_base
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from sqlalchemy.types import TypeDecorator, VARCHAR
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from ironic.openstack.common.db.sqlalchemy import models
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sql_opts = [
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cfg.StrOpt('mysql_engine',
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default='InnoDB',
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help='MySQL engine to use.')
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]
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cfg.CONF.register_opts(sql_opts, 'database')
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def table_args():
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engine_name = urlparse.urlparse(cfg.CONF.database_connection).scheme
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if engine_name == 'mysql':
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return {'mysql_engine': cfg.CONF.mysql_engine,
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'mysql_charset': "utf8"}
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return None
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class JsonEncodedType(TypeDecorator):
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"""Abstract base type serialized as json-encoded string in db."""
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type = None
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impl = VARCHAR
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def process_bind_param(self, value, dialect):
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if value is None:
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# Save default value according to current type to keep the
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# interface the consistent.
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value = self.type()
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elif not isinstance(value, self.type):
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raise TypeError("%s supposes to store %s objects, but %s given"
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% (self.__class__.__name__,
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self.type.__name__,
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type(value).__name__))
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serialized_value = json.dumps(value)
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return serialized_value
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def process_result_value(self, value, dialect):
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if value is not None:
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value = json.loads(value)
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return value
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class JSONEncodedDict(JsonEncodedType):
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"""Represents dict serialized as json-encoded string in db."""
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type = dict
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class JSONEncodedList(JsonEncodedType):
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"""Represents list serialized as json-encoded string in db."""
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type = list
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class IronicBase(models.TimestampMixin,
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models.ModelBase):
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metadata = None
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def as_dict(self):
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d = {}
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for c in self.__table__.columns:
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d[c.name] = self[c.name]
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return d
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Base = declarative_base(cls=IronicBase)
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class Chassis(Base):
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"""Represents a hardware chassis."""
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__tablename__ = 'chassis'
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__table_args__ = (
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schema.UniqueConstraint('uuid', name='uniq_chassis0uuid'),
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)
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id = Column(Integer, primary_key=True)
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uuid = Column(String(36))
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extra = Column(JSONEncodedDict)
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description = Column(String(255), nullable=True)
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class Conductor(Base):
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"""Represents a conductor service entry."""
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__tablename__ = 'conductors'
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__table_args__ = (
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schema.UniqueConstraint('hostname', name='uniq_conductors0hostname'),
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)
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id = Column(Integer, primary_key=True)
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hostname = Column(String(255), nullable=False)
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drivers = Column(JSONEncodedList)
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class Node(Base):
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"""Represents a bare metal node."""
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__tablename__ = 'nodes'
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__table_args__ = (
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schema.UniqueConstraint('uuid', name='uniq_nodes0uuid'),
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Index('node_instance_uuid', 'instance_uuid'))
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id = Column(Integer, primary_key=True)
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uuid = Column(String(36))
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# NOTE(deva): we store instance_uuid directly on the node so that we can
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# filter on it more efficiently, even though it is
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# user-settable, and would otherwise be in node.properties.
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instance_uuid = Column(String(36), nullable=True)
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chassis_id = Column(Integer, ForeignKey('chassis.id'), nullable=True)
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power_state = Column(String(15), nullable=True)
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target_power_state = Column(String(15), nullable=True)
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provision_state = Column(String(15), nullable=True)
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target_provision_state = Column(String(15), nullable=True)
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provision_updated_at = Column(DateTime, nullable=True)
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last_error = Column(Text, nullable=True)
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properties = Column(JSONEncodedDict)
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driver = Column(String(15))
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driver_info = Column(JSONEncodedDict)
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reservation = Column(String(255), nullable=True)
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maintenance = Column(Boolean, default=False)
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extra = Column(JSONEncodedDict)
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class Port(Base):
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"""Represents a network port of a bare metal node."""
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__tablename__ = 'ports'
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__table_args__ = (
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schema.UniqueConstraint('address', name='uniq_ports0address'),
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schema.UniqueConstraint('uuid', name='uniq_ports0uuid'))
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id = Column(Integer, primary_key=True)
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uuid = Column(String(36))
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address = Column(String(18))
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node_id = Column(Integer, ForeignKey('nodes.id'), nullable=True)
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extra = Column(JSONEncodedDict)
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