f84aecfb08
Due to the os-extended-volumes API it is necessary to be able to retrieve block device mapping info for an instance at any time. In order to do so it needs to be stored with the build request. This also makes it available during instance deletion where it may be useful to look up whether delete_on_termination is set on a bdm so that it can be cleaned up. Change-Id: Ib774a43e49b7153b3f7b099a59483c62003ee7a8 Partially-Implements: bp add-buildrequest-obj
408 lines
15 KiB
Python
408 lines
15 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 Boolean
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from sqlalchemy import Column
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from sqlalchemy import Enum
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from sqlalchemy.ext.declarative import declarative_base
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from sqlalchemy import Float
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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 orm
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from sqlalchemy.orm import backref
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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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from sqlalchemy import Unicode
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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 AggregateHost(API_BASE):
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"""Represents a host that is member of an aggregate."""
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__tablename__ = 'aggregate_hosts'
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__table_args__ = (schema.UniqueConstraint(
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"host", "aggregate_id",
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name="uniq_aggregate_hosts0host0aggregate_id"
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),
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)
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id = Column(Integer, primary_key=True, autoincrement=True)
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host = Column(String(255))
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aggregate_id = Column(Integer, ForeignKey('aggregates.id'), nullable=False)
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class AggregateMetadata(API_BASE):
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"""Represents a metadata key/value pair for an aggregate."""
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__tablename__ = 'aggregate_metadata'
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__table_args__ = (
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schema.UniqueConstraint("aggregate_id", "key",
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name="uniq_aggregate_metadata0aggregate_id0key"
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),
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Index('aggregate_metadata_key_idx', 'key'),
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)
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id = Column(Integer, primary_key=True)
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key = Column(String(255), nullable=False)
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value = Column(String(255), nullable=False)
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aggregate_id = Column(Integer, ForeignKey('aggregates.id'), nullable=False)
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class Aggregate(API_BASE):
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"""Represents a cluster of hosts that exists in this zone."""
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__tablename__ = 'aggregates'
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__table_args__ = (Index('aggregate_uuid_idx', 'uuid'),
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schema.UniqueConstraint(
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"name", name="uniq_aggregate0name")
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)
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id = Column(Integer, primary_key=True, autoincrement=True)
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uuid = Column(String(36))
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name = Column(String(255))
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_hosts = orm.relationship(AggregateHost,
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primaryjoin='Aggregate.id == AggregateHost.aggregate_id')
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_metadata = orm.relationship(AggregateMetadata,
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primaryjoin='Aggregate.id == AggregateMetadata.aggregate_id')
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@property
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def _extra_keys(self):
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return ['hosts', 'metadetails', 'availability_zone']
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@property
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def hosts(self):
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return [h.host for h in self._hosts]
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@property
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def metadetails(self):
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return {m.key: m.value for m in self._metadata}
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@property
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def availability_zone(self):
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if 'availability_zone' not in self.metadetails:
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return None
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return self.metadetails['availability_zone']
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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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host_mapping = orm.relationship('HostMapping',
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backref=backref('cell_mapping', uselist=False),
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foreign_keys=id,
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primaryjoin=(
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'CellMapping.id == HostMapping.cell_id'))
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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=True)
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project_id = Column(String(255), nullable=False)
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cell_mapping = orm.relationship('CellMapping',
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backref=backref('instance_mapping', uselist=False),
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foreign_keys=cell_id,
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primaryjoin=('InstanceMapping.cell_id == CellMapping.id'))
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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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class Flavors(API_BASE):
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"""Represents possible flavors for instances"""
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__tablename__ = 'flavors'
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__table_args__ = (
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schema.UniqueConstraint("flavorid", name="uniq_flavors0flavorid"),
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schema.UniqueConstraint("name", name="uniq_flavors0name"))
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id = Column(Integer, primary_key=True)
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name = Column(String(255), nullable=False)
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memory_mb = Column(Integer, nullable=False)
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vcpus = Column(Integer, nullable=False)
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root_gb = Column(Integer)
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ephemeral_gb = Column(Integer)
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flavorid = Column(String(255), nullable=False)
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swap = Column(Integer, nullable=False, default=0)
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rxtx_factor = Column(Float, default=1)
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vcpu_weight = Column(Integer)
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disabled = Column(Boolean, default=False)
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is_public = Column(Boolean, default=True)
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class FlavorExtraSpecs(API_BASE):
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"""Represents additional specs as key/value pairs for a flavor"""
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__tablename__ = 'flavor_extra_specs'
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__table_args__ = (
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Index('flavor_extra_specs_flavor_id_key_idx', 'flavor_id', 'key'),
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schema.UniqueConstraint('flavor_id', 'key',
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name='uniq_flavor_extra_specs0flavor_id0key'),
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{'mysql_collate': 'utf8_bin'},
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)
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id = Column(Integer, primary_key=True)
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key = Column(String(255), nullable=False)
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value = Column(String(255))
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flavor_id = Column(Integer, ForeignKey('flavors.id'), nullable=False)
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flavor = orm.relationship(Flavors, backref='extra_specs',
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foreign_keys=flavor_id,
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primaryjoin=(
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'FlavorExtraSpecs.flavor_id == Flavors.id'))
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class FlavorProjects(API_BASE):
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"""Represents projects associated with flavors"""
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__tablename__ = 'flavor_projects'
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__table_args__ = (schema.UniqueConstraint('flavor_id', 'project_id',
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name='uniq_flavor_projects0flavor_id0project_id'),)
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id = Column(Integer, primary_key=True)
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flavor_id = Column(Integer, ForeignKey('flavors.id'), nullable=False)
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project_id = Column(String(255), nullable=False)
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flavor = orm.relationship(Flavors, backref='projects',
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foreign_keys=flavor_id,
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primaryjoin=(
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'FlavorProjects.flavor_id == Flavors.id'))
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class BuildRequest(API_BASE):
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"""Represents the information passed to the scheduler."""
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__tablename__ = 'build_requests'
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__table_args__ = (
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Index('build_requests_instance_uuid_idx', 'instance_uuid'),
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Index('build_requests_project_id_idx', 'project_id'),
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schema.UniqueConstraint('instance_uuid',
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name='uniq_build_requests0instance_uuid'),
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)
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id = Column(Integer, primary_key=True)
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instance_uuid = Column(String(36))
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project_id = Column(String(255), nullable=False)
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instance = Column(Text)
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block_device_mappings = Column(Text)
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# TODO(alaski): Drop these from the db in Ocata
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# columns_to_drop = ['request_spec_id', 'user_id', 'display_name',
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# 'instance_metadata', 'progress', 'vm_state', 'task_state',
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# 'image_ref', 'access_ip_v4', 'access_ip_v6', 'info_cache',
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# 'security_groups', 'config_drive', 'key_name', 'locked_by',
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# 'reservation_id', 'launch_index', 'hostname', 'kernel_id',
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# 'ramdisk_id', 'root_device_name', 'user_data']
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class KeyPair(API_BASE):
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"""Represents a public key pair for ssh / WinRM."""
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__tablename__ = 'key_pairs'
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__table_args__ = (
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schema.UniqueConstraint("user_id", "name",
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name="uniq_key_pairs0user_id0name"),
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)
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id = Column(Integer, primary_key=True, nullable=False)
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name = Column(String(255), nullable=False)
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user_id = Column(String(255), nullable=False)
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fingerprint = Column(String(255))
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public_key = Column(Text())
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type = Column(Enum('ssh', 'x509', name='keypair_types'),
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nullable=False, server_default='ssh')
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class ResourceProvider(API_BASE):
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"""Represents a mapping to a providers of resources."""
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__tablename__ = "resource_providers"
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__table_args__ = (
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Index('resource_providers_uuid_idx', 'uuid'),
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schema.UniqueConstraint('uuid',
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name='uniq_resource_providers0uuid'),
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Index('resource_providers_name_idx', 'name'),
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schema.UniqueConstraint('name',
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name='uniq_resource_providers0name')
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)
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id = Column(Integer, primary_key=True, nullable=False)
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uuid = Column(String(36), nullable=False)
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name = Column(Unicode(200), nullable=True)
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generation = Column(Integer, default=0)
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can_host = Column(Integer, default=0)
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class Inventory(API_BASE):
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"""Represents a quantity of available resource."""
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__tablename__ = "inventories"
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__table_args__ = (
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Index('inventories_resource_provider_id_idx',
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'resource_provider_id'),
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Index('inventories_resource_class_id_idx',
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'resource_class_id'),
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Index('inventories_resource_provider_resource_class_idx',
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'resource_provider_id', 'resource_class_id'),
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schema.UniqueConstraint('resource_provider_id', 'resource_class_id',
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name='uniq_inventories0resource_provider_resource_class')
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)
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id = Column(Integer, primary_key=True, nullable=False)
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resource_provider_id = Column(Integer, nullable=False)
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resource_class_id = Column(Integer, nullable=False)
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total = Column(Integer, nullable=False)
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reserved = Column(Integer, nullable=False)
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min_unit = Column(Integer, nullable=False)
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max_unit = Column(Integer, nullable=False)
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step_size = Column(Integer, nullable=False)
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allocation_ratio = Column(Float, nullable=False)
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resource_provider = orm.relationship(
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"ResourceProvider",
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primaryjoin=('Inventory.resource_provider_id == '
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'ResourceProvider.id'),
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foreign_keys=resource_provider_id)
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class Allocation(API_BASE):
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"""A use of inventory."""
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__tablename__ = "allocations"
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__table_args__ = (
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Index('allocations_resource_provider_class_used_idx',
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'resource_provider_id', 'resource_class_id',
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'used'),
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Index('allocations_resource_class_id_idx',
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'resource_class_id'),
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Index('allocations_consumer_id_idx', 'consumer_id')
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)
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id = Column(Integer, primary_key=True, nullable=False)
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resource_provider_id = Column(Integer, nullable=False)
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consumer_id = Column(String(36), nullable=False)
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resource_class_id = Column(Integer, nullable=False)
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used = Column(Integer, nullable=False)
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resource_provider = orm.relationship(
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"ResourceProvider",
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primaryjoin=('Allocation.resource_provider_id == '
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'ResourceProvider.id'),
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foreign_keys=resource_provider_id)
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class ResourceProviderAggregate(API_BASE):
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"""Associate a resource provider with an aggregate."""
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__tablename__ = 'resource_provider_aggregates'
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__table_args__ = (
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Index('resource_provider_aggregates_aggregate_id_idx',
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'aggregate_id'),
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)
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resource_provider_id = Column(Integer, primary_key=True, nullable=False)
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aggregate_id = Column(Integer, primary_key=True, nullable=False)
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class InstanceGroupMember(API_BASE):
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"""Represents the members for an instance group."""
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__tablename__ = 'instance_group_member'
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__table_args__ = (
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Index('instance_group_member_instance_idx', 'instance_uuid'),
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)
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id = Column(Integer, primary_key=True, nullable=False)
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instance_uuid = Column(String(255))
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group_id = Column(Integer, ForeignKey('instance_groups.id'),
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nullable=False)
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class InstanceGroupPolicy(API_BASE):
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"""Represents the policy type for an instance group."""
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__tablename__ = 'instance_group_policy'
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__table_args__ = (
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Index('instance_group_policy_policy_idx', 'policy'),
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)
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id = Column(Integer, primary_key=True, nullable=False)
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policy = Column(String(255))
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group_id = Column(Integer, ForeignKey('instance_groups.id'),
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nullable=False)
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class InstanceGroup(API_BASE):
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"""Represents an instance group.
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A group will maintain a collection of instances and the relationship
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between them.
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"""
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__tablename__ = 'instance_groups'
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__table_args__ = (
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schema.UniqueConstraint('uuid', name='uniq_instance_groups0uuid'),
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)
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id = Column(Integer, primary_key=True, autoincrement=True)
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user_id = Column(String(255))
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project_id = Column(String(255))
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uuid = Column(String(36), nullable=False)
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name = Column(String(255))
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_policies = orm.relationship(InstanceGroupPolicy,
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primaryjoin='InstanceGroup.id == InstanceGroupPolicy.group_id')
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_members = orm.relationship(InstanceGroupMember,
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primaryjoin='InstanceGroup.id == InstanceGroupMember.group_id')
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@property
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def policies(self):
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return [p.policy for p in self._policies]
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@property
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def members(self):
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return [m.instance_uuid for m in self._members]
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