/
store.py
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/
store.py
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# Copyright 2019 Atalaya Tech, 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.
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
import logging
import datetime
from contextlib import contextmanager
from sqlalchemy import Column, String, Integer, DateTime, JSON, UniqueConstraint
from sqlalchemy.orm.exc import NoResultFound
from google.protobuf.json_format import ParseDict
from bentoml.exceptions import YataiDeploymentException
from bentoml.db import Base, create_session
from bentoml.proto import deployment_pb2
from bentoml.utils import ProtoMessageToDict
logger = logging.getLogger(__name__)
ALL_NAMESPACE_TAG = '__BENTOML_ALL_NAMESPACE'
class Deployment(Base):
__tablename__ = 'deployments'
__table_args__ = tuple(
UniqueConstraint('name', 'namespace', name='_name_namespace_uc')
)
id = Column(Integer, primary_key=True)
name = Column(String, nullable=False)
namespace = Column(String, nullable=False)
spec = Column(JSON, nullable=False, default={})
state = Column(JSON, nullable=False, default={})
labels = Column(JSON, nullable=False, default={})
annotations = Column(JSON, nullable=False, default={})
created_at = Column(DateTime, default=datetime.datetime.utcnow)
last_updated_at = Column(DateTime, default=datetime.datetime.utcnow)
def _deployment_pb_to_orm_obj(deployment_pb, deployment_obj=Deployment()):
deployment_obj.name = deployment_pb.name
deployment_obj.namespace = deployment_pb.namespace
deployment_obj.spec = ProtoMessageToDict(deployment_pb.spec)
deployment_obj.state = ProtoMessageToDict(deployment_pb.state)
deployment_obj.labels = dict(deployment_pb.labels)
deployment_obj.annotations = dict(deployment_pb.annotations)
deployment_obj.created_at = deployment_pb.created_at.ToDatetime()
deployment_obj.last_updated_at = deployment_pb.last_updated_at.ToDatetime()
return deployment_obj
def _deployment_orm_obj_to_pb(deployment_obj):
deployment_pb = deployment_pb2.Deployment(
name=deployment_obj.name,
namespace=deployment_obj.namespace,
spec=ParseDict(deployment_obj.spec, deployment_pb2.DeploymentSpec()),
state=ParseDict(deployment_obj.state, deployment_pb2.DeploymentState()),
labels=deployment_obj.labels,
annotations=deployment_obj.annotations,
)
deployment_pb.created_at.FromDatetime(deployment_obj.created_at)
if deployment_obj.last_updated_at:
deployment_pb.last_updated_at.FromDatetime(deployment_obj.last_updated_at)
return deployment_pb
class DeploymentStore(object):
def __init__(self, sess_maker):
self.sess_maker = sess_maker
def insert(self, deployment_pb):
with create_session(self.sess_maker) as sess:
deployment_obj = _deployment_pb_to_orm_obj(deployment_pb)
return sess.add(deployment_obj)
def insert_or_update(self, deployment_pb):
with create_session(self.sess_maker) as sess:
try:
deployment_obj = (
sess.query(Deployment)
.filter_by(
name=deployment_pb.name, namespace=deployment_pb.namespace
)
.one()
)
if deployment_obj:
# updating deployment record in db
_deployment_pb_to_orm_obj(deployment_pb, deployment_obj)
except NoResultFound:
sess.add(_deployment_pb_to_orm_obj(deployment_pb))
@contextmanager
def update_deployment(self, name, namespace):
with create_session(self.sess_maker) as sess:
try:
deployment_obj = (
sess.query(Deployment)
.filter_by(name=name, namespace=namespace)
.one()
)
yield deployment_obj
except NoResultFound:
yield None
def get(self, name, namespace):
with create_session(self.sess_maker) as sess:
try:
deployment_obj = (
sess.query(Deployment)
.filter_by(name=name, namespace=namespace)
.one()
)
except NoResultFound:
return None
return _deployment_orm_obj_to_pb(deployment_obj)
def delete(self, name, namespace):
with create_session(self.sess_maker) as sess:
try:
deployment = (
sess.query(Deployment)
.filter_by(name=name, namespace=namespace)
.one()
)
return sess.delete(deployment)
except NoResultFound:
raise YataiDeploymentException(
"Deployment '%s' in namespace: '%s' is not found" % name, namespace
)
def list(self, namespace, filter_str=None, labels=None, offset=None, limit=None):
with create_session(self.sess_maker) as sess:
query = sess.query(Deployment)
if namespace != ALL_NAMESPACE_TAG: # else query all namespaces
query.filter_by(namespace=namespace)
if limit:
query.limit(limit)
if offset:
query.offset(offset)
if filter_str:
query.filter(Deployment.name.contains(filter_str))
if labels:
raise NotImplementedError("Listing by labels is not yet implemented")
return list(map(_deployment_orm_obj_to_pb, query.all()))