murano/murano/db/models.py

314 lines
11 KiB
Python

# Copyright (c) 2013 Mirantis, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
"""
SQLAlchemy models for murano data
"""
from oslo.db.sqlalchemy import models
import sqlalchemy as sa
from sqlalchemy.ext import declarative
from sqlalchemy import orm as sa_orm
from murano.common import uuidutils
from murano.db.sqla import types as st
from murano.openstack.common import timeutils
class TimestampMixin(object):
__protected_attributes__ = set(["created", "updated"])
created = sa.Column(sa.DateTime, default=timeutils.utcnow,
nullable=False)
updated = sa.Column(sa.DateTime, default=timeutils.utcnow,
nullable=False, onupdate=timeutils.utcnow)
def update(self, values):
"""dict.update() behaviour."""
self.updated = timeutils.utcnow()
super(_MuranoBase, self).update(values)
def __setitem__(self, key, value):
self.updated = timeutils.utcnow()
super(_MuranoBase, self).__setitem__(key, value)
class _MuranoBase(models.ModelBase):
def to_dict(self):
dictionary = self.__dict__.copy()
return dict((k, v) for k, v in dictionary.iteritems()
if k != '_sa_instance_state')
Base = declarative.declarative_base(cls=_MuranoBase)
class Environment(Base, TimestampMixin):
"""Represents a Environment in the metadata-store"""
__tablename__ = 'environment'
id = sa.Column(sa.String(255),
primary_key=True,
default=uuidutils.generate_uuid)
name = sa.Column(sa.String(255), nullable=False)
tenant_id = sa.Column(sa.String(36), nullable=False)
version = sa.Column(sa.BigInteger, nullable=False, default=0)
description = sa.Column(st.JsonBlob(), nullable=False, default={})
networking = sa.Column(st.JsonBlob(), nullable=True, default={})
sessions = sa_orm.relationship("Session", backref='environment',
cascade='save-update, merge, delete')
deployments = sa_orm.relationship("Deployment", backref='environment',
cascade='save-update, merge, delete')
def to_dict(self):
dictionary = super(Environment, self).to_dict()
del dictionary['description']
return dictionary
class Session(Base, TimestampMixin):
__tablename__ = 'session'
id = sa.Column(sa.String(36),
primary_key=True,
default=uuidutils.generate_uuid)
environment_id = sa.Column(sa.String(255), sa.ForeignKey('environment.id'))
user_id = sa.Column(sa.String(36), nullable=False)
state = sa.Column(sa.String(36), nullable=False)
description = sa.Column(st.JsonBlob(), nullable=False)
version = sa.Column(sa.BigInteger, nullable=False, default=0)
def to_dict(self):
dictionary = super(Session, self).to_dict()
del dictionary['description']
#object relations may be not loaded yet
if 'environment' in dictionary:
del dictionary['environment']
return dictionary
class Deployment(Base, TimestampMixin):
__tablename__ = 'deployment'
id = sa.Column(sa.String(36),
primary_key=True,
default=uuidutils.generate_uuid)
started = sa.Column(sa.DateTime, default=timeutils.utcnow, nullable=False)
finished = sa.Column(sa.DateTime, default=None, nullable=True)
description = sa.Column(st.JsonBlob(), nullable=False)
environment_id = sa.Column(sa.String(255), sa.ForeignKey('environment.id'))
statuses = sa_orm.relationship("Status", backref='deployment',
cascade='save-update, merge, delete')
def to_dict(self):
dictionary = super(Deployment, self).to_dict()
# del dictionary["description"]
if 'statuses' in dictionary:
del dictionary['statuses']
if 'environment' in dictionary:
del dictionary['environment']
return dictionary
class Status(Base, TimestampMixin):
__tablename__ = 'status'
id = sa.Column(sa.String(36),
primary_key=True,
default=uuidutils.generate_uuid)
entity_id = sa.Column(sa.String(255), nullable=True)
entity = sa.Column(sa.String(10), nullable=True)
deployment_id = sa.Column(sa.String(36), sa.ForeignKey('deployment.id'))
text = sa.Column(sa.Text(), nullable=False)
level = sa.Column(sa.String(32), nullable=False)
details = sa.Column(sa.Text(), nullable=True)
def to_dict(self):
dictionary = super(Status, self).to_dict()
#object relations may be not loaded yet
if 'deployment' in dictionary:
del dictionary['deployment']
return dictionary
class ApiStats(Base, TimestampMixin):
__tablename__ = 'apistats'
id = sa.Column(sa.Integer(), primary_key=True)
host = sa.Column(sa.String(80))
request_count = sa.Column(sa.BigInteger())
error_count = sa.Column(sa.BigInteger())
average_response_time = sa.Column(sa.Float())
requests_per_tenant = sa.Column(sa.Text())
requests_per_second = sa.Column(sa.Float())
errors_per_second = sa.Column(sa.Float())
cpu_count = sa.Column(sa.Integer())
cpu_percent = sa.Column(sa.Float())
def to_dict(self):
dictionary = super(ApiStats, self).to_dict()
return dictionary
package_to_category = sa.Table('package_to_category',
Base.metadata,
sa.Column('package_id',
sa.String(36),
sa.ForeignKey('package.id')),
sa.Column('category_id',
sa.String(36),
sa.ForeignKey('category.id',
ondelete="RESTRICT")))
package_to_tag = sa.Table('package_to_tag',
Base.metadata,
sa.Column('package_id',
sa.String(36),
sa.ForeignKey('package.id')),
sa.Column('tag_id',
sa.String(36),
sa.ForeignKey('tag.id',
ondelete="CASCADE")))
class Instance(Base):
__tablename__ = 'instance_stats'
environment_id = sa.Column(
sa.String(255), primary_key=True, nullable=False)
instance_id = sa.Column(
sa.String(255), primary_key=True, nullable=False)
instance_type = sa.Column(sa.Integer, default=0, nullable=False)
created = sa.Column(sa.Integer, nullable=False)
destroyed = sa.Column(sa.Integer, nullable=True)
type_name = sa.Column('type_name', sa.String(512), nullable=False)
type_title = sa.Column('type_title', sa.String(512))
unit_count = sa.Column('unit_count', sa.Integer())
tenant_id = sa.Column('tenant_id', sa.String(36), nullable=False)
def to_dict(self):
dictionary = super(Instance, self).to_dict()
return dictionary
class Package(Base, TimestampMixin):
"""
Represents a meta information about application package.
"""
__tablename__ = 'package'
id = sa.Column(sa.String(36),
primary_key=True,
default=uuidutils.generate_uuid)
archive = sa.Column(st.LargeBinary())
fully_qualified_name = sa.Column(sa.String(128),
nullable=False,
index=True,
unique=True)
type = sa.Column(sa.String(20), nullable=False, default='class')
author = sa.Column(sa.String(80), default='Openstack')
supplier = sa.Column(st.JsonBlob(), nullable=True, default={})
name = sa.Column(sa.String(80), nullable=False)
enabled = sa.Column(sa.Boolean, default=True)
description = sa.Column(sa.String(512),
nullable=False,
default='The description is not provided')
is_public = sa.Column(sa.Boolean, default=False)
tags = sa_orm.relationship("Tag",
secondary=package_to_tag,
cascade='save-update, merge',
lazy='joined')
logo = sa.Column(st.LargeBinary(), nullable=True)
owner_id = sa.Column(sa.String(36), nullable=False)
ui_definition = sa.Column(sa.Text)
supplier_logo = sa.Column(sa.LargeBinary, nullable=True)
categories = sa_orm.relationship("Category",
secondary=package_to_category,
cascade='save-update, merge',
lazy='joined')
class_definitions = sa_orm.relationship(
"Class", cascade='save-update, merge, delete', lazy='joined')
def to_dict(self):
d = self.__dict__.copy()
not_serializable = ['_sa_instance_state',
'archive',
'logo',
'ui_definition',
'supplier_logo']
nested_objects = ['categories', 'tags', 'class_definitions']
for key in not_serializable:
if key in d.keys():
del d[key]
for key in nested_objects:
d[key] = [a.name for a in d.get(key, [])]
return d
class Category(Base, TimestampMixin):
"""
Represents an application categories in the datastore.
"""
__tablename__ = 'category'
id = sa.Column(sa.String(36),
primary_key=True,
default=uuidutils.generate_uuid)
name = sa.Column(sa.String(80), nullable=False, index=True, unique=True)
class Tag(Base, TimestampMixin):
"""
Represents tags in the datastore.
"""
__tablename__ = 'tag'
id = sa.Column(sa.String(36),
primary_key=True,
default=uuidutils.generate_uuid)
name = sa.Column(sa.String(80), nullable=False, unique=True)
class Class(Base, TimestampMixin):
"""
Represents a class definition in the datastore.
"""
__tablename__ = 'class_definition'
id = sa.Column(sa.String(36),
primary_key=True,
default=uuidutils.generate_uuid)
name = sa.Column(sa.String(128), nullable=False, index=True)
package_id = sa.Column(sa.String(36), sa.ForeignKey('package.id'))
def register_models(engine):
"""
Creates database tables for all models with the given engine
"""
models = (Environment, Status, Session, Deployment,
ApiStats, Package, Category, Class, Instance)
for model in models:
model.metadata.create_all(engine)
def unregister_models(engine):
"""
Drops database tables for all models with the given engine
"""
models = (Environment, Status, Session, Deployment,
ApiStats, Package, Category, Class)
for model in models:
model.metadata.drop_all(engine)