69 lines
2.6 KiB
Python
69 lines
2.6 KiB
Python
# Copyright (c) 2015 OpenStack Foundation. All rights reserved.
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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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from neutron_lib.db import model_base
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import sqlalchemy as sa
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from sqlalchemy import orm
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from sqlalchemy import sql
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class ResourceDelta(model_base.BASEV2):
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resource = sa.Column(sa.String(255), primary_key=True)
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reservation_id = sa.Column(sa.String(36),
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sa.ForeignKey('reservations.id',
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ondelete='CASCADE'),
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primary_key=True,
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nullable=False)
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# Requested amount of resource
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amount = sa.Column(sa.Integer)
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class Reservation(model_base.BASEV2, model_base.HasId,
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model_base.HasProjectNoIndex):
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expiration = sa.Column(sa.DateTime())
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resource_deltas = orm.relationship(ResourceDelta,
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backref='reservation',
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lazy="joined",
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cascade='all, delete-orphan')
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class Quota(model_base.BASEV2, model_base.HasId, model_base.HasProject):
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"""Represent a single quota override for a tenant.
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If there is no row for a given tenant id and resource, then the
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default for the deployment is used.
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"""
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resource = sa.Column(sa.String(255))
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limit = sa.Column(sa.Integer)
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__table_args__ = (sa.UniqueConstraint(
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'project_id',
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'resource',
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name='uniq_quotas0project_id0resource'),
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model_base.BASEV2.__table_args__
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)
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class QuotaUsage(model_base.BASEV2, model_base.HasProjectPrimaryKeyIndex):
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"""Represents the current usage for a given resource."""
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resource = sa.Column(sa.String(255), nullable=False,
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primary_key=True, index=True)
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dirty = sa.Column(sa.Boolean, nullable=False, server_default=sql.false())
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in_use = sa.Column(sa.Integer, nullable=False,
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server_default="0")
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reserved = sa.Column(sa.Integer, nullable=False,
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server_default="0")
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