RETIRED, Function as a Service for OpenStack
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qinling/qinling/db/sqlalchemy/models.py

140 lines
4.3 KiB

# Copyright 2017 Catalyst IT Limited
#
# 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.
import sqlalchemy as sa
from sqlalchemy.orm import relationship
from qinling.db.sqlalchemy import model_base
from qinling.db.sqlalchemy import types as st
from qinling.utils import common
class Runtime(model_base.QinlingSecureModelBase):
__tablename__ = 'runtimes'
__table_args__ = (
sa.UniqueConstraint('image', 'project_id'),
)
name = sa.Column(sa.String(255))
description = sa.Column(sa.String(255))
image = sa.Column(sa.String(255), nullable=False)
status = sa.Column(sa.String(32), nullable=False)
class Function(model_base.QinlingSecureModelBase):
__tablename__ = 'functions'
__table_args__ = (
sa.UniqueConstraint('name', 'project_id'),
)
name = sa.Column(sa.String(255), nullable=False)
description = sa.Column(sa.String(255))
runtime_id = sa.Column(
sa.String(36), sa.ForeignKey(Runtime.id), nullable=True
)
runtime = relationship('Runtime', back_populates="functions")
memory_size = sa.Column(sa.Integer)
timeout = sa.Column(sa.Integer)
code = sa.Column(st.JsonLongDictType(), nullable=False)
entry = sa.Column(sa.String(80), nullable=False)
count = sa.Column(sa.Integer, default=0)
class FunctionServiceMapping(model_base.QinlingModelBase):
__tablename__ = 'function_service_mappings'
__table_args__ = (
sa.UniqueConstraint('function_id', 'service_url'),
)
id = model_base.id_column()
function_id = sa.Column(
sa.String(36),
sa.ForeignKey(Function.id, ondelete='CASCADE'),
)
service_url = sa.Column(sa.String(255), nullable=False)
class FunctionWorkers(model_base.QinlingModelBase):
__tablename__ = 'function_workers'
id = model_base.id_column()
function_id = sa.Column(
sa.String(36),
sa.ForeignKey(Function.id, ondelete='CASCADE'),
)
worker_name = sa.Column(sa.String(255), nullable=False)
class Execution(model_base.QinlingSecureModelBase):
__tablename__ = 'executions'
function_id = sa.Column(sa.String(36), nullable=False)
status = sa.Column(sa.String(32), nullable=False)
sync = sa.Column(sa.BOOLEAN, default=True)
input = sa.Column(st.JsonLongDictType())
output = sa.Column(st.JsonLongDictType())
description = sa.Column(sa.String(255))
logs = sa.Column(sa.Text(), nullable=True)
class Job(model_base.QinlingSecureModelBase):
__tablename__ = 'jobs'
name = sa.Column(sa.String(255), nullable=True)
pattern = sa.Column(sa.String(32), nullable=True)
status = sa.Column(sa.String(32), nullable=False)
first_execution_time = sa.Column(sa.DateTime, nullable=True)
next_execution_time = sa.Column(sa.DateTime, nullable=False)
count = sa.Column(sa.Integer)
function_id = sa.Column(
sa.String(36),
sa.ForeignKey(Function.id)
)
function = relationship('Function', back_populates="jobs")
function_input = sa.Column(st.JsonDictType())
trust_id = sa.Column(sa.String(80))
def to_dict(self):
d = super(Job, self).to_dict()
common.datetime_to_str(d, 'first_execution_time')
common.datetime_to_str(d, 'next_execution_time')
return d
# Delete service mapping automatically when deleting function.
Function.service = relationship(
"FunctionServiceMapping",
uselist=False,
cascade="all, delete-orphan"
)
# Delete workers automatically when deleting function.
Function.workers = relationship(
"FunctionWorkers",
cascade="all, delete-orphan"
)
Runtime.functions = relationship("Function", back_populates="runtime")
# Only get jobs
Function.jobs = relationship(
"Job",
back_populates="function",
primaryjoin=(
"and_(Function.id==Job.function_id, "
"~Job.status.in_(['done', 'cancelled']))"
)
)