0152047a77
In order to use the request spec for an instance boot during later scheduling operations, like resize/migrate, it needs to be persisted. This adds a db migration to store the request spec and methods to the object to create/save/get the request spec. The RequestSpec object is also important for cells v2 so that boot requests can have their information persisted before the creation of an instance record in the database. Change-Id: I94cd50ad29e10eb320d1d78f3081db6519815ff9 Implements: bp persist-request-spec
87 lines
3.0 KiB
Python
87 lines
3.0 KiB
Python
# 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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from oslo_db.sqlalchemy import models
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from sqlalchemy import Column
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from sqlalchemy.ext.declarative import declarative_base
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from sqlalchemy import ForeignKey
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from sqlalchemy import Index
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from sqlalchemy import Integer
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from sqlalchemy import schema
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from sqlalchemy import String
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from sqlalchemy import Text
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class _NovaAPIBase(models.ModelBase, models.TimestampMixin):
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pass
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API_BASE = declarative_base(cls=_NovaAPIBase)
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class CellMapping(API_BASE):
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"""Contains information on communicating with a cell"""
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__tablename__ = 'cell_mappings'
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__table_args__ = (Index('uuid_idx', 'uuid'),
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schema.UniqueConstraint('uuid',
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name='uniq_cell_mappings0uuid'))
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id = Column(Integer, primary_key=True)
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uuid = Column(String(36), nullable=False)
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name = Column(String(255))
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transport_url = Column(Text())
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database_connection = Column(Text())
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class InstanceMapping(API_BASE):
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"""Contains the mapping of an instance to which cell it is in"""
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__tablename__ = 'instance_mappings'
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__table_args__ = (Index('project_id_idx', 'project_id'),
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Index('instance_uuid_idx', 'instance_uuid'),
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schema.UniqueConstraint('instance_uuid',
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name='uniq_instance_mappings0instance_uuid'))
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id = Column(Integer, primary_key=True)
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instance_uuid = Column(String(36), nullable=False)
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cell_id = Column(Integer, ForeignKey('cell_mappings.id'),
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nullable=False)
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project_id = Column(String(255), nullable=False)
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class HostMapping(API_BASE):
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"""Contains mapping of a compute host to which cell it is in"""
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__tablename__ = "host_mappings"
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__table_args__ = (Index('host_idx', 'host'),
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schema.UniqueConstraint('host',
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name='uniq_host_mappings0host'))
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id = Column(Integer, primary_key=True)
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cell_id = Column(Integer, ForeignKey('cell_mappings.id'),
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nullable=False)
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host = Column(String(255), nullable=False)
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class RequestSpec(API_BASE):
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"""Represents the information passed to the scheduler."""
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__tablename__ = 'request_specs'
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__table_args__ = (
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Index('request_spec_instance_uuid_idx', 'instance_uuid'),
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schema.UniqueConstraint('instance_uuid',
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name='uniq_request_specs0instance_uuid'),
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)
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id = Column(Integer, primary_key=True)
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instance_uuid = Column(String(36), nullable=False)
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spec = Column(Text, nullable=False)
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