232 lines
7.8 KiB
Python
232 lines
7.8 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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from oslo_config import cfg
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from oslo_db import options as db_options
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from oslo_db.sqlalchemy import models
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import six.moves.urllib.parse as urlparse
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from sqlalchemy import Boolean, Column, DateTime
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from sqlalchemy import ForeignKey, Integer
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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, TEXT
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from iotronic.common import paths
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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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_DEFAULT_SQL_CONNECTION = 'sqlite:///' + paths.state_path_def('iotronic.sqlite')
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cfg.CONF.register_opts(sql_opts, 'database')
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db_options.set_defaults(cfg.CONF, _DEFAULT_SQL_CONNECTION, 'iotronic.sqlite')
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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.database.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 = TEXT
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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 IotronicBase(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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def save(self, session=None):
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import iotronic.db.sqlalchemy.api as db_api
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if session is None:
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session = db_api.get_session()
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super(IotronicBase, self).save(session)
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Base = declarative_base(cls=IotronicBase)
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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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table_args()
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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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table_args()
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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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online = Column(Boolean, default=True)
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class Node(Base):
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"""Represents a board."""
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__tablename__ = 'nodes'
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'''
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__table_args__ = (
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schema.UniqueConstraint('uuid', name='uniq_nodes0uuid'),
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schema.UniqueConstraint('instance_uuid',
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name='uniq_nodes0instance_uuid'),
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schema.UniqueConstraint('name', name='uniq_nodes0name'),
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table_args())
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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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code = Column(String(25))
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status = Column(String(15), nullable=True)
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name = Column(String(255), nullable=True)
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device = Column(String(255), nullable=True)
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session = Column(String(255), nullable=True)
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mobile = Column(Boolean, default=False)
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location = Column(JSONEncodedDict)
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extra = Column(JSONEncodedDict)
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"""
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__tablename__ = 'nodes'
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'''
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__table_args__ = (
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schema.UniqueConstraint('uuid', name='uniq_nodes0uuid'),
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schema.UniqueConstraint('instance_uuid',
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name='uniq_nodes0instance_uuid'),
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schema.UniqueConstraint('name', name='uniq_nodes0name'),
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table_args())
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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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# 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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uuid = Column(String(36), nullable=True)
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name = Column(String(255), nullable=True)
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status = Column(String(10), 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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#instance_info = Column(JSONEncodedDict)
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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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#driver_internal_info = Column(JSONEncodedDict)
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#clean_step = Column(JSONEncodedDict)
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# NOTE(deva): this is the host name of the conductor which has
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# acquired a TaskManager lock on the node.
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# We should use an INT FK (conductors.id) in the future.
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reservation = Column(String(255), nullable=True)
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# NOTE(deva): this is the id of the last conductor which prepared local
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# state for the node (eg, a PXE config file).
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# When affinity and the hash ring's mapping do not match,
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# this indicates that a conductor should rebuild local state.
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'''
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conductor_affinity = Column(Integer,
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ForeignKey('conductors.id',
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name='nodes_conductor_affinity_fk'),
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nullable=True)
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'''
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#maintenance = Column(Boolean, default=False)
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#maintenance_reason = Column(Text, nullable=True)
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#console_enabled = Column(Boolean, default=False)
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#inspection_finished_at = Column(DateTime, nullable=True)
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#inspection_started_at = Column(DateTime, nullable=True)
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#extra = Column(JSONEncodedDict)
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"""
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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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table_args())
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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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