1117 lines
43 KiB
Python
1117 lines
43 KiB
Python
# -*- encoding: utf-8 -*-
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#
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# Copyright 2013 Hewlett-Packard Development Company, L.P.
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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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"""SQLAlchemy storage backend."""
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import datetime
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from oslo.config import cfg
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from oslo.db import exception as db_exc
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from oslo.db.sqlalchemy import session as db_session
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from oslo.db.sqlalchemy import utils as db_utils
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from oslo.utils import timeutils
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from sqlalchemy.orm.exc import NoResultFound
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from magnum.common import exception
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from magnum.common import utils
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from magnum.db import api
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from magnum.db.sqlalchemy import models
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from magnum.openstack.common._i18n import _
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from magnum.openstack.common import log
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CONF = cfg.CONF
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LOG = log.getLogger(__name__)
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_FACADE = None
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def _create_facade_lazily():
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global _FACADE
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if _FACADE is None:
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_FACADE = db_session.EngineFacade.from_config(CONF)
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return _FACADE
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def get_engine():
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facade = _create_facade_lazily()
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return facade.get_engine()
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def get_session(**kwargs):
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facade = _create_facade_lazily()
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return facade.get_session(**kwargs)
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def get_backend():
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"""The backend is this module itself."""
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return Connection()
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def model_query(model, *args, **kwargs):
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"""Query helper for simpler session usage.
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:param session: if present, the session to use
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"""
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session = kwargs.get('session') or get_session()
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query = session.query(model, *args)
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return query
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def add_identity_filter(query, value):
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"""Adds an identity filter to a query.
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Filters results by ID, if supplied value is a valid integer.
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Otherwise attempts to filter results by UUID.
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:param query: Initial query to add filter to.
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:param value: Value for filtering results by.
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:return: Modified query.
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"""
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if utils.is_int_like(value):
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return query.filter_by(id=value)
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elif utils.is_uuid_like(value):
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return query.filter_by(uuid=value)
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else:
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raise exception.InvalidIdentity(identity=value)
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def _check_port_change_forbidden(port, session):
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bay_id = port['bay_id']
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if bay_id is not None:
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query = model_query(models.Bay, session=session)
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query = query.filter_by(id=bay_id)
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bay_ref = query.one()
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if bay_ref['reservation'] is not None:
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raise exception.BayLocked(bay=bay_ref['uuid'],
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host=bay_ref['reservation'])
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def _paginate_query(model, limit=None, marker=None, sort_key=None,
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sort_dir=None, query=None):
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if not query:
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query = model_query(model)
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sort_keys = ['id']
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if sort_key and sort_key not in sort_keys:
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sort_keys.insert(0, sort_key)
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query = db_utils.paginate_query(query, model, limit, sort_keys,
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marker=marker, sort_dir=sort_dir)
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return query.all()
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class Connection(api.Connection):
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"""SqlAlchemy connection."""
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def __init__(self):
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pass
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def _add_bays_filters(self, query, filters):
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if filters is None:
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filters = []
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if 'associated' in filters:
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if filters['associated']:
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query = query.filter(models.Bay.instance_uuid is not None)
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else:
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query = query.filter(models.Bay.instance_uuid is None)
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if 'reserved' in filters:
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if filters['reserved']:
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query = query.filter(models.Bay.reservation is not None)
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else:
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query = query.filter(models.Bay.reservation is None)
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if 'maintenance' in filters:
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query = query.filter_by(maintenance=filters['maintenance'])
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if 'driver' in filters:
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query = query.filter_by(driver=filters['driver'])
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if 'provision_state' in filters:
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query = query.filter_by(provision_state=filters['provision_state'])
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if 'provisioned_before' in filters:
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limit = timeutils.utcnow() - datetime.timedelta(
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seconds=filters['provisioned_before'])
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query = query.filter(models.Bay.provision_updated_at < limit)
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return query
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def get_bayinfo_list(self, columns=None, filters=None, limit=None,
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marker=None, sort_key=None, sort_dir=None):
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# list-ify columns default values because it is bad form
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# to include a mutable list in function definitions.
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if columns is None:
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columns = [models.Bay.id]
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else:
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columns = [getattr(models.Bay, c) for c in columns]
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query = model_query(*columns, base_model=models.Bay)
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query = self._add_bays_filters(query, filters)
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return _paginate_query(models.Bay, limit, marker,
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sort_key, sort_dir, query)
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def get_bay_list(self, filters=None, limit=None, marker=None,
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sort_key=None, sort_dir=None):
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query = model_query(models.Bay)
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query = self._add_bays_filters(query, filters)
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return _paginate_query(models.Bay, limit, marker,
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sort_key, sort_dir, query)
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def reserve_bay(self, tag, bay_id):
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session = get_session()
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with session.begin():
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query = model_query(models.Bay, session=session)
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query = add_identity_filter(query, bay_id)
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# be optimistic and assume we usually create a reservation
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count = query.filter_by(reservation=None).update(
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{'reservation': tag}, synchronize_session=False)
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try:
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bay = query.one()
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if count != 1:
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# Nothing updated and bay exists. Must already be
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# locked.
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raise exception.BayLocked(bay=bay_id,
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host=bay['reservation'])
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return bay
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except NoResultFound:
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raise exception.BayNotFound(bay_id)
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def release_bay(self, tag, bay_id):
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session = get_session()
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with session.begin():
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query = model_query(models.Bay, session=session)
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query = add_identity_filter(query, bay_id)
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# be optimistic and assume we usually release a reservation
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count = query.filter_by(reservation=tag).update(
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{'reservation': None}, synchronize_session=False)
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try:
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if count != 1:
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bay = query.one()
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if bay['reservation'] is None:
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raise exception.BayNotLocked(bay=bay_id)
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else:
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raise exception.BayLocked(bay=bay_id,
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host=bay['reservation'])
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except NoResultFound:
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raise exception.BayNotFound(bay_id)
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def create_bay(self, values):
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# ensure defaults are present for new bays
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if not values.get('uuid'):
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values['uuid'] = utils.generate_uuid()
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bay = models.Bay()
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bay.update(values)
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try:
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bay.save()
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except db_exc.DBDuplicateEntry as exc:
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if 'instance_uuid' in exc.columns:
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raise exception.InstanceAssociated(
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instance_uuid=values['instance_uuid'],
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bay=values['uuid'])
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raise exception.BayAlreadyExists(uuid=values['uuid'])
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return bay
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def get_bay_by_id(self, bay_id):
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query = model_query(models.Bay).filter_by(id=bay_id)
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try:
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return query.one()
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except NoResultFound:
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raise exception.BayNotFound(bay=bay_id)
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def get_bay_by_uuid(self, bay_uuid):
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query = model_query(models.Bay).filter_by(uuid=bay_uuid)
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try:
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return query.one()
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except NoResultFound:
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raise exception.BayNotFound(bay=bay_uuid)
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def get_bay_by_instance(self, instance):
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if not utils.is_uuid_like(instance):
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raise exception.InvalidUUID(uuid=instance)
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query = (model_query(models.Bay)
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.filter_by(instance_uuid=instance))
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try:
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result = query.one()
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except NoResultFound:
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raise exception.InstanceNotFound(instance=instance)
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return result
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def destroy_bay(self, bay_id):
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session = get_session()
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with session.begin():
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query = model_query(models.Bay, session=session)
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query = add_identity_filter(query, bay_id)
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query.delete()
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def update_bay(self, bay_id, values):
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# NOTE(dtantsur): this can lead to very strange errors
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if 'uuid' in values:
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msg = _("Cannot overwrite UUID for an existing Bay.")
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raise exception.InvalidParameterValue(err=msg)
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try:
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return self._do_update_bay(bay_id, values)
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except db_exc.DBDuplicateEntry:
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raise exception.InstanceAssociated(
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instance_uuid=values['instance_uuid'],
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bay=bay_id)
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def _do_update_bay(self, bay_id, values):
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session = get_session()
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with session.begin():
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query = model_query(models.Bay, session=session)
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query = add_identity_filter(query, bay_id)
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try:
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ref = query.with_lockmode('update').one()
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except NoResultFound:
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raise exception.BayNotFound(bay=bay_id)
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# Prevent instance_uuid overwriting
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if values.get("instance_uuid") and ref.instance_uuid:
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raise exception.BayAssociated(bay=bay_id,
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instance=ref.instance_uuid)
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if 'provision_state' in values:
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values['provision_updated_at'] = timeutils.utcnow()
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ref.update(values)
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return ref
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def _add_baymodels_filters(self, query, filters):
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if filters is None:
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filters = []
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if 'associated' in filters:
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if filters['associated']:
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query = query.filter(models.BayModel.instance_uuid is not None)
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else:
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query = query.filter(models.BayModel.instance_uuid is None)
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if 'reserved' in filters:
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if filters['reserved']:
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query = query.filter(models.BayModel.reservation is not None)
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else:
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query = query.filter(models.BayModel.reservation is None)
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if 'maintenance' in filters:
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query = query.filter_by(maintenance=filters['maintenance'])
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if 'driver' in filters:
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query = query.filter_by(driver=filters['driver'])
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if 'provision_state' in filters:
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query = query.filter_by(provision_state=filters['provision_state'])
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if 'provisioned_before' in filters:
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limit = timeutils.utcnow() - datetime.timedelta(
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seconds=filters['provisioned_before'])
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query = query.filter(models.BayModel.provision_updated_at < limit)
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return query
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def get_baymodelinfo_list(self, columns=None, filters=None, limit=None,
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marker=None, sort_key=None, sort_dir=None):
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# list-ify columns default values because it is bad form
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# to include a mutable list in function definitions.
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if columns is None:
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columns = [models.BayModel.id]
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else:
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columns = [getattr(models.BayModel, c) for c in columns]
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query = model_query(*columns, base_model=models.BayModel)
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query = self._add_baymodels_filters(query, filters)
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return _paginate_query(models.BayModel, limit, marker,
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sort_key, sort_dir, query)
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def get_baymodel_list(self, filters=None, limit=None, marker=None,
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sort_key=None, sort_dir=None):
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query = model_query(models.BayModel)
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query = self._add_baymodels_filters(query, filters)
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return _paginate_query(models.BayModel, limit, marker,
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sort_key, sort_dir, query)
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def create_baymodel(self, values):
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# ensure defaults are present for new baymodels
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if not values.get('uuid'):
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values['uuid'] = utils.generate_uuid()
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baymodel = models.BayModel()
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baymodel.update(values)
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try:
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baymodel.save()
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except db_exc.DBDuplicateEntry as exc:
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if 'instance_uuid' in exc.columns:
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raise exception.InstanceAssociated(
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instance_uuid=values['instance_uuid'],
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baymodel=values['uuid'])
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raise exception.BayModelAlreadyExists(uuid=values['uuid'])
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return baymodel
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def get_baymodel_by_id(self, baymodel_id):
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query = model_query(models.BayModel).filter_by(id=baymodel_id)
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try:
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return query.one()
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except NoResultFound:
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raise exception.BayModelNotFound(baymodel=baymodel_id)
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def get_baymodel_by_uuid(self, baymodel_uuid):
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query = model_query(models.BayModel).filter_by(uuid=baymodel_uuid)
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try:
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return query.one()
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except NoResultFound:
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raise exception.BayModelNotFound(baymodel=baymodel_uuid)
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def get_baymodel_by_instance(self, instance):
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if not utils.is_uuid_like(instance):
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raise exception.InvalidUUID(uuid=instance)
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query = (model_query(models.BayModel)
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.filter_by(instance_uuid=instance))
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try:
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result = query.one()
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except NoResultFound:
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raise exception.InstanceNotFound(instance=instance)
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return result
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def destroy_baymodel(self, baymodel_id):
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session = get_session()
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with session.begin():
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query = model_query(models.BayModel, session=session)
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query = add_identity_filter(query, baymodel_id)
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query.delete()
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def update_baymodel(self, baymodel_id, values):
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# NOTE(dtantsur): this can lead to very strange errors
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if 'uuid' in values:
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msg = _("Cannot overwrite UUID for an existing BayModel.")
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raise exception.InvalidParameterValue(err=msg)
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try:
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return self._do_update_baymodel(baymodel_id, values)
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except db_exc.DBDuplicateEntry:
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raise exception.InstanceAssociated(
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instance_uuid=values['instance_uuid'],
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baymodel=baymodel_id)
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def _do_update_baymodel(self, baymodel_id, values):
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session = get_session()
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with session.begin():
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query = model_query(models.BayModel, session=session)
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query = add_identity_filter(query, baymodel_id)
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try:
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ref = query.with_lockmode('update').one()
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except NoResultFound:
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raise exception.BayModelNotFound(baymodel=baymodel_id)
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ref.update(values)
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return ref
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def _add_containers_filters(self, query, filters):
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if filters is None:
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filters = []
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if 'associated' in filters:
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if filters['associated']:
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query = query.filter(models.Container.instance_uuid is not
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None)
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else:
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query = query.filter(models.Container.instance_uuid is None)
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if 'reserved' in filters:
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if filters['reserved']:
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query = query.filter(models.Container.reservation is not None)
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else:
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query = query.filter(models.Container.reservation is None)
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if 'maintenance' in filters:
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query = query.filter_by(maintenance=filters['maintenance'])
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if 'driver' in filters:
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query = query.filter_by(driver=filters['driver'])
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if 'provision_state' in filters:
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query = query.filter_by(provision_state=filters['provision_state'])
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if 'provisioned_before' in filters:
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limit = timeutils.utcnow() - datetime.timedelta(
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seconds=filters['provisioned_before'])
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query = query.filter(models.Container.provision_updated_at < limit)
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return query
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def get_containerinfo_list(self, columns=None, filters=None, limit=None,
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marker=None, sort_key=None, sort_dir=None):
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# list-ify columns default values because it is bad form
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# to include a mutable list in function definitions.
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if columns is None:
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columns = [models.Container.id]
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else:
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columns = [getattr(models.Container, c) for c in columns]
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query = model_query(*columns, base_model=models.Container)
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query = self._add_containers_filters(query, filters)
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return _paginate_query(models.Container, limit, marker,
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sort_key, sort_dir, query)
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def get_container_list(self, filters=None, limit=None, marker=None,
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sort_key=None, sort_dir=None):
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query = model_query(models.Container)
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query = self._add_containers_filters(query, filters)
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return _paginate_query(models.Container, limit, marker,
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sort_key, sort_dir, query)
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def reserve_container(self, tag, container_id):
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session = get_session()
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with session.begin():
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query = model_query(models.Container, session=session)
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query = add_identity_filter(query, container_id)
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# be optimistic and assume we usually create a reservation
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count = query.filter_by(reservation=None).update(
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{'reservation': tag}, synchronize_session=False)
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try:
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container = query.one()
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if count != 1:
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# Nothing updated and container exists. Must already be
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# locked.
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raise exception.ContainerLocked(container=container_id,
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host=container['reservation'])
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return container
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except NoResultFound:
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raise exception.ContainerNotFound(container_id)
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def release_container(self, tag, container_id):
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session = get_session()
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with session.begin():
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query = model_query(models.Container, session=session)
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query = add_identity_filter(query, container_id)
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# be optimistic and assume we usually release a reservation
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count = query.filter_by(reservation=tag).update(
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{'reservation': None}, synchronize_session=False)
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try:
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if count != 1:
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container = query.one()
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if container['reservation'] is None:
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raise exception.ContainerNotLocked(
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container=container_id)
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else:
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raise exception.ContainerLocked(container=container_id,
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host=container['reservation'])
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except NoResultFound:
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raise exception.ContainerNotFound(container_id)
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|
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def create_container(self, values):
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# ensure defaults are present for new containers
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if not values.get('uuid'):
|
|
values['uuid'] = utils.generate_uuid()
|
|
|
|
container = models.Container()
|
|
container.update(values)
|
|
try:
|
|
container.save()
|
|
except db_exc.DBDuplicateEntry as exc:
|
|
if 'instance_uuid' in exc.columns:
|
|
raise exception.InstanceAssociated(
|
|
instance_uuid=values['instance_uuid'],
|
|
container=values['uuid'])
|
|
raise exception.ContainerAlreadyExists(uuid=values['uuid'])
|
|
return container
|
|
|
|
def get_container_by_id(self, container_id):
|
|
query = model_query(models.Container).filter_by(id=container_id)
|
|
try:
|
|
return query.one()
|
|
except NoResultFound:
|
|
raise exception.ContainerNotFound(container=container_id)
|
|
|
|
def get_container_by_uuid(self, container_uuid):
|
|
query = model_query(models.Container).filter_by(uuid=container_uuid)
|
|
try:
|
|
return query.one()
|
|
except NoResultFound:
|
|
raise exception.ContainerNotFound(container=container_uuid)
|
|
|
|
def get_container_by_instance(self, instance):
|
|
if not utils.is_uuid_like(instance):
|
|
raise exception.InvalidUUID(uuid=instance)
|
|
|
|
query = (model_query(models.Container)
|
|
.filter_by(instance_uuid=instance))
|
|
|
|
try:
|
|
result = query.one()
|
|
except NoResultFound:
|
|
raise exception.InstanceNotFound(instance=instance)
|
|
|
|
return result
|
|
|
|
def destroy_container(self, container_id):
|
|
session = get_session()
|
|
with session.begin():
|
|
query = model_query(models.Container, session=session)
|
|
query = add_identity_filter(query, container_id)
|
|
query.delete()
|
|
|
|
def update_container(self, container_id, values):
|
|
# NOTE(dtantsur): this can lead to very strange errors
|
|
if 'uuid' in values:
|
|
msg = _("Cannot overwrite UUID for an existing Container.")
|
|
raise exception.InvalidParameterValue(err=msg)
|
|
|
|
try:
|
|
return self._do_update_container(container_id, values)
|
|
except db_exc.DBDuplicateEntry:
|
|
raise exception.InstanceAssociated(
|
|
instance_uuid=values['instance_uuid'],
|
|
container=container_id)
|
|
|
|
def _do_update_container(self, container_id, values):
|
|
session = get_session()
|
|
with session.begin():
|
|
query = model_query(models.Container, session=session)
|
|
query = add_identity_filter(query, container_id)
|
|
try:
|
|
ref = query.with_lockmode('update').one()
|
|
except NoResultFound:
|
|
raise exception.ContainerNotFound(container=container_id)
|
|
|
|
# Prevent instance_uuid overwriting
|
|
if values.get("instance_uuid") and ref.instance_uuid:
|
|
raise exception.ContainerAssociated(container=container_id,
|
|
instance=ref.instance_uuid)
|
|
|
|
if 'provision_state' in values:
|
|
values['provision_updated_at'] = timeutils.utcnow()
|
|
|
|
ref.update(values)
|
|
return ref
|
|
|
|
def _add_nodes_filters(self, query, filters):
|
|
if filters is None:
|
|
filters = []
|
|
|
|
if 'associated' in filters:
|
|
if filters['associated']:
|
|
query = query.filter(models.Node.instance_uuid is not None)
|
|
else:
|
|
query = query.filter(models.Node.instance_uuid is None)
|
|
if 'reserved' in filters:
|
|
if filters['reserved']:
|
|
query = query.filter(models.Node.reservation is not None)
|
|
else:
|
|
query = query.filter(models.Node.reservation is None)
|
|
if 'maintenance' in filters:
|
|
query = query.filter_by(maintenance=filters['maintenance'])
|
|
if 'driver' in filters:
|
|
query = query.filter_by(driver=filters['driver'])
|
|
if 'provision_state' in filters:
|
|
query = query.filter_by(provision_state=filters['provision_state'])
|
|
if 'provisioned_before' in filters:
|
|
limit = timeutils.utcnow() - datetime.timedelta(
|
|
seconds=filters['provisioned_before'])
|
|
query = query.filter(models.Node.provision_updated_at < limit)
|
|
|
|
return query
|
|
|
|
def get_nodeinfo_list(self, columns=None, filters=None, limit=None,
|
|
marker=None, sort_key=None, sort_dir=None):
|
|
# list-ify columns default values because it is bad form
|
|
# to include a mutable list in function definitions.
|
|
if columns is None:
|
|
columns = [models.Node.id]
|
|
else:
|
|
columns = [getattr(models.Node, c) for c in columns]
|
|
|
|
query = model_query(*columns, base_model=models.Node)
|
|
query = self._add_nodes_filters(query, filters)
|
|
return _paginate_query(models.Node, limit, marker,
|
|
sort_key, sort_dir, query)
|
|
|
|
def get_node_list(self, filters=None, limit=None, marker=None,
|
|
sort_key=None, sort_dir=None):
|
|
query = model_query(models.Node)
|
|
query = self._add_nodes_filters(query, filters)
|
|
return _paginate_query(models.Node, limit, marker,
|
|
sort_key, sort_dir, query)
|
|
|
|
def reserve_node(self, tag, node_id):
|
|
session = get_session()
|
|
with session.begin():
|
|
query = model_query(models.Node, session=session)
|
|
query = add_identity_filter(query, node_id)
|
|
# be optimistic and assume we usually create a reservation
|
|
count = query.filter_by(reservation=None).update(
|
|
{'reservation': tag}, synchronize_session=False)
|
|
try:
|
|
node = query.one()
|
|
if count != 1:
|
|
# Nothing updated and node exists. Must already be
|
|
# locked.
|
|
raise exception.NodeLocked(node=node_id,
|
|
host=node['reservation'])
|
|
return node
|
|
except NoResultFound:
|
|
raise exception.NodeNotFound(node_id)
|
|
|
|
def release_node(self, tag, node_id):
|
|
session = get_session()
|
|
with session.begin():
|
|
query = model_query(models.Node, session=session)
|
|
query = add_identity_filter(query, node_id)
|
|
# be optimistic and assume we usually release a reservation
|
|
count = query.filter_by(reservation=tag).update(
|
|
{'reservation': None}, synchronize_session=False)
|
|
try:
|
|
if count != 1:
|
|
node = query.one()
|
|
if node['reservation'] is None:
|
|
raise exception.NodeNotLocked(node=node_id)
|
|
else:
|
|
raise exception.NodeLocked(node=node_id,
|
|
host=node['reservation'])
|
|
except NoResultFound:
|
|
raise exception.NodeNotFound(node_id)
|
|
|
|
def create_node(self, values):
|
|
# ensure defaults are present for new nodes
|
|
if not values.get('uuid'):
|
|
values['uuid'] = utils.generate_uuid()
|
|
|
|
node = models.Node()
|
|
node.update(values)
|
|
try:
|
|
node.save()
|
|
except db_exc.DBDuplicateEntry as exc:
|
|
if 'instance_uuid' in exc.columns:
|
|
raise exception.InstanceAssociated(
|
|
instance_uuid=values['instance_uuid'],
|
|
node=values['uuid'])
|
|
raise exception.NodeAlreadyExists(uuid=values['uuid'])
|
|
return node
|
|
|
|
def get_node_by_id(self, node_id):
|
|
query = model_query(models.Node).filter_by(id=node_id)
|
|
try:
|
|
return query.one()
|
|
except NoResultFound:
|
|
raise exception.NodeNotFound(node=node_id)
|
|
|
|
def get_node_by_uuid(self, node_uuid):
|
|
query = model_query(models.Node).filter_by(uuid=node_uuid)
|
|
try:
|
|
return query.one()
|
|
except NoResultFound:
|
|
raise exception.NodeNotFound(node=node_uuid)
|
|
|
|
def get_node_by_instance(self, instance):
|
|
if not utils.is_uuid_like(instance):
|
|
raise exception.InvalidUUID(uuid=instance)
|
|
|
|
query = (model_query(models.Node)
|
|
.filter_by(instance_uuid=instance))
|
|
|
|
try:
|
|
result = query.one()
|
|
except NoResultFound:
|
|
raise exception.InstanceNotFound(instance=instance)
|
|
|
|
return result
|
|
|
|
def destroy_node(self, node_id):
|
|
session = get_session()
|
|
with session.begin():
|
|
query = model_query(models.Node, session=session)
|
|
query = add_identity_filter(query, node_id)
|
|
query.delete()
|
|
|
|
def update_node(self, node_id, values):
|
|
# NOTE(dtantsur): this can lead to very strange errors
|
|
if 'uuid' in values:
|
|
msg = _("Cannot overwrite UUID for an existing Node.")
|
|
raise exception.InvalidParameterValue(err=msg)
|
|
|
|
try:
|
|
return self._do_update_node(node_id, values)
|
|
except db_exc.DBDuplicateEntry:
|
|
raise exception.InstanceAssociated(
|
|
instance_uuid=values['instance_uuid'],
|
|
node=node_id)
|
|
|
|
def _do_update_node(self, node_id, values):
|
|
session = get_session()
|
|
with session.begin():
|
|
query = model_query(models.Node, session=session)
|
|
query = add_identity_filter(query, node_id)
|
|
try:
|
|
ref = query.with_lockmode('update').one()
|
|
except NoResultFound:
|
|
raise exception.NodeNotFound(node=node_id)
|
|
|
|
# Prevent instance_uuid overwriting
|
|
if values.get("instance_uuid") and ref.instance_uuid:
|
|
raise exception.NodeAssociated(node=node_id,
|
|
instance=ref.instance_uuid)
|
|
|
|
if 'provision_state' in values:
|
|
values['provision_updated_at'] = timeutils.utcnow()
|
|
|
|
ref.update(values)
|
|
return ref
|
|
|
|
def _add_pods_filters(self, query, filters):
|
|
if filters is None:
|
|
filters = []
|
|
|
|
if 'associated' in filters:
|
|
if filters['associated']:
|
|
query = query.filter(models.Pod.instance_uuid is not None)
|
|
else:
|
|
query = query.filter(models.Pod.instance_uuid is None)
|
|
if 'reserved' in filters:
|
|
if filters['reserved']:
|
|
query = query.filter(models.Pod.reservation is not None)
|
|
else:
|
|
query = query.filter(models.Pod.reservation is None)
|
|
if 'maintenance' in filters:
|
|
query = query.filter_by(maintenance=filters['maintenance'])
|
|
if 'driver' in filters:
|
|
query = query.filter_by(driver=filters['driver'])
|
|
if 'provision_state' in filters:
|
|
query = query.filter_by(provision_state=filters['provision_state'])
|
|
if 'provisioned_before' in filters:
|
|
limit = timeutils.utcnow() - datetime.timedelta(
|
|
seconds=filters['provisioned_before'])
|
|
query = query.filter(models.Pod.provision_updated_at < limit)
|
|
|
|
return query
|
|
|
|
def get_podinfo_list(self, columns=None, filters=None, limit=None,
|
|
marker=None, sort_key=None, sort_dir=None):
|
|
# list-ify columns default values because it is bad form
|
|
# to include a mutable list in function definitions.
|
|
if columns is None:
|
|
columns = [models.Pod.id]
|
|
else:
|
|
columns = [getattr(models.Pod, c) for c in columns]
|
|
|
|
query = model_query(*columns, base_model=models.Pod)
|
|
query = self._add_pods_filters(query, filters)
|
|
return _paginate_query(models.Pod, limit, marker,
|
|
sort_key, sort_dir, query)
|
|
|
|
def get_pod_list(self, filters=None, limit=None, marker=None,
|
|
sort_key=None, sort_dir=None):
|
|
query = model_query(models.Pod)
|
|
query = self._add_pods_filters(query, filters)
|
|
return _paginate_query(models.Pod, limit, marker,
|
|
sort_key, sort_dir, query)
|
|
|
|
def reserve_pod(self, tag, pod_id):
|
|
session = get_session()
|
|
with session.begin():
|
|
query = model_query(models.Pod, session=session)
|
|
query = add_identity_filter(query, pod_id)
|
|
# be optimistic and assume we usually create a reservation
|
|
count = query.filter_by(reservation=None).update(
|
|
{'reservation': tag}, synchronize_session=False)
|
|
try:
|
|
pod = query.one()
|
|
if count != 1:
|
|
# Nothing updated and pod exists. Must already be
|
|
# locked.
|
|
raise exception.PodLocked(pod=pod_id,
|
|
host=pod['reservation'])
|
|
return pod
|
|
except NoResultFound:
|
|
raise exception.PodNotFound(pod_id)
|
|
|
|
def release_pod(self, tag, pod_id):
|
|
session = get_session()
|
|
with session.begin():
|
|
query = model_query(models.Pod, session=session)
|
|
query = add_identity_filter(query, pod_id)
|
|
# be optimistic and assume we usually release a reservation
|
|
count = query.filter_by(reservation=tag).update(
|
|
{'reservation': None}, synchronize_session=False)
|
|
try:
|
|
if count != 1:
|
|
pod = query.one()
|
|
if pod['reservation'] is None:
|
|
raise exception.PodNotLocked(pod=pod_id)
|
|
else:
|
|
raise exception.PodLocked(pod=pod_id,
|
|
host=pod['reservation'])
|
|
except NoResultFound:
|
|
raise exception.PodNotFound(pod_id)
|
|
|
|
def create_pod(self, values):
|
|
# ensure defaults are present for new pods
|
|
if not values.get('uuid'):
|
|
values['uuid'] = utils.generate_uuid()
|
|
|
|
pod = models.Pod()
|
|
pod.update(values)
|
|
try:
|
|
pod.save()
|
|
except db_exc.DBDuplicateEntry as exc:
|
|
if 'instance_uuid' in exc.columns:
|
|
raise exception.InstanceAssociated(
|
|
instance_uuid=values['instance_uuid'],
|
|
pod=values['uuid'])
|
|
raise exception.PodAlreadyExists(uuid=values['uuid'])
|
|
return pod
|
|
|
|
def get_pod_by_id(self, pod_id):
|
|
query = model_query(models.Pod).filter_by(id=pod_id)
|
|
try:
|
|
return query.one()
|
|
except NoResultFound:
|
|
raise exception.PodNotFound(pod=pod_id)
|
|
|
|
def get_pod_by_uuid(self, pod_uuid):
|
|
query = model_query(models.Pod).filter_by(uuid=pod_uuid)
|
|
try:
|
|
return query.one()
|
|
except NoResultFound:
|
|
raise exception.PodNotFound(pod=pod_uuid)
|
|
|
|
def get_pod_by_name(self, pod_name):
|
|
query = model_query(models.Pod).filter_by(name=pod_name)
|
|
try:
|
|
return query.one()
|
|
except NoResultFound:
|
|
raise exception.PodNotFound(pod=pod_name)
|
|
|
|
def get_pods_by_bay_uuid(self, bay_uuid):
|
|
query = model_query(models.Pod).filter_by(bay_uuid=bay_uuid)
|
|
try:
|
|
return query.all()
|
|
except NoResultFound:
|
|
raise exception.BayNotFound(bay=bay_uuid)
|
|
|
|
def get_pod_by_instance(self, instance):
|
|
if not utils.is_uuid_like(instance):
|
|
raise exception.InvalidUUID(uuid=instance)
|
|
|
|
query = (model_query(models.Pod)
|
|
.filter_by(instance_uuid=instance))
|
|
|
|
try:
|
|
result = query.one()
|
|
except NoResultFound:
|
|
raise exception.InstanceNotFound(instance=instance)
|
|
|
|
return result
|
|
|
|
def destroy_pod(self, pod_id):
|
|
session = get_session()
|
|
with session.begin():
|
|
query = model_query(models.Pod, session=session)
|
|
query = add_identity_filter(query, pod_id)
|
|
query.delete()
|
|
|
|
def update_pod(self, pod_id, values):
|
|
# NOTE(dtantsur): this can lead to very strange errors
|
|
if 'uuid' in values:
|
|
msg = _("Cannot overwrite UUID for an existing Pod.")
|
|
raise exception.InvalidParameterValue(err=msg)
|
|
|
|
try:
|
|
return self._do_update_pod(pod_id, values)
|
|
except db_exc.DBDuplicateEntry:
|
|
raise exception.InstanceAssociated(
|
|
instance_uuid=values['instance_uuid'],
|
|
pod=pod_id)
|
|
|
|
def _do_update_pod(self, pod_id, values):
|
|
session = get_session()
|
|
with session.begin():
|
|
query = model_query(models.Pod, session=session)
|
|
query = add_identity_filter(query, pod_id)
|
|
try:
|
|
ref = query.with_lockmode('update').one()
|
|
except NoResultFound:
|
|
raise exception.PodNotFound(pod=pod_id)
|
|
|
|
# Prevent instance_uuid overwriting
|
|
if values.get("instance_uuid") and ref.instance_uuid:
|
|
raise exception.PodAssociated(pod=pod_id,
|
|
instance=ref.instance_uuid)
|
|
|
|
if 'provision_state' in values:
|
|
values['provision_updated_at'] = timeutils.utcnow()
|
|
|
|
ref.update(values)
|
|
return ref
|
|
|
|
def _add_services_filters(self, query, filters):
|
|
if filters is None:
|
|
filters = []
|
|
|
|
if 'associated' in filters:
|
|
if filters['associated']:
|
|
query = query.filter(models.Service.instance_uuid is not None)
|
|
else:
|
|
query = query.filter(models.Service.instance_uuid is None)
|
|
if 'reserved' in filters:
|
|
if filters['reserved']:
|
|
query = query.filter(models.Service.reservation is not None)
|
|
else:
|
|
query = query.filter(models.Service.reservation is None)
|
|
if 'maintenance' in filters:
|
|
query = query.filter_by(maintenance=filters['maintenance'])
|
|
if 'driver' in filters:
|
|
query = query.filter_by(driver=filters['driver'])
|
|
if 'provision_state' in filters:
|
|
query = query.filter_by(provision_state=filters['provision_state'])
|
|
if 'provisioned_before' in filters:
|
|
limit = timeutils.utcnow() - datetime.timedelta(
|
|
seconds=filters['provisioned_before'])
|
|
query = query.filter(models.Service.provision_updated_at < limit)
|
|
|
|
return query
|
|
|
|
def get_serviceinfo_list(self, columns=None, filters=None, limit=None,
|
|
marker=None, sort_key=None, sort_dir=None):
|
|
# list-ify columns default values because it is bad form
|
|
# to include a mutable list in function definitions.
|
|
if columns is None:
|
|
columns = [models.Service.id]
|
|
else:
|
|
columns = [getattr(models.Service, c) for c in columns]
|
|
|
|
query = model_query(*columns, base_model=models.Service)
|
|
query = self._add_services_filters(query, filters)
|
|
return _paginate_query(models.Service, limit, marker,
|
|
sort_key, sort_dir, query)
|
|
|
|
def get_service_list(self, filters=None, limit=None, marker=None,
|
|
sort_key=None, sort_dir=None):
|
|
query = model_query(models.Service)
|
|
query = self._add_services_filters(query, filters)
|
|
return _paginate_query(models.Service, limit, marker,
|
|
sort_key, sort_dir, query)
|
|
|
|
def reserve_service(self, tag, service_id):
|
|
session = get_session()
|
|
with session.begin():
|
|
query = model_query(models.Service, session=session)
|
|
query = add_identity_filter(query, service_id)
|
|
# be optimistic and assume we usually create a reservation
|
|
count = query.filter_by(reservation=None).update(
|
|
{'reservation': tag}, synchronize_session=False)
|
|
try:
|
|
service = query.one()
|
|
if count != 1:
|
|
# Nothing updated and service exists. Must already be
|
|
# locked.
|
|
raise exception.ServiceLocked(service=service_id,
|
|
host=service['reservation'])
|
|
return service
|
|
except NoResultFound:
|
|
raise exception.ServiceNotFound(service_id)
|
|
|
|
def release_service(self, tag, service_id):
|
|
session = get_session()
|
|
with session.begin():
|
|
query = model_query(models.Service, session=session)
|
|
query = add_identity_filter(query, service_id)
|
|
# be optimistic and assume we usually release a reservation
|
|
count = query.filter_by(reservation=tag).update(
|
|
{'reservation': None}, synchronize_session=False)
|
|
try:
|
|
if count != 1:
|
|
service = query.one()
|
|
if service['reservation'] is None:
|
|
raise exception.ServiceNotLocked(service=service_id)
|
|
else:
|
|
raise exception.ServiceLocked(service=service_id,
|
|
host=service['reservation'])
|
|
except NoResultFound:
|
|
raise exception.ServiceNotFound(service_id)
|
|
|
|
def create_service(self, values):
|
|
# ensure defaults are present for new services
|
|
if not values.get('uuid'):
|
|
values['uuid'] = utils.generate_uuid()
|
|
|
|
service = models.Service()
|
|
service.update(values)
|
|
try:
|
|
service.save()
|
|
except db_exc.DBDuplicateEntry as exc:
|
|
if 'instance_uuid' in exc.columns:
|
|
raise exception.InstanceAssociated(
|
|
instance_uuid=values['instance_uuid'],
|
|
service=values['uuid'])
|
|
raise exception.ServiceAlreadyExists(uuid=values['uuid'])
|
|
return service
|
|
|
|
def get_service_by_id(self, service_id):
|
|
query = model_query(models.Service).filter_by(id=service_id)
|
|
try:
|
|
return query.one()
|
|
except NoResultFound:
|
|
raise exception.ServiceNotFound(service=service_id)
|
|
|
|
def get_service_by_uuid(self, service_uuid):
|
|
query = model_query(models.Service).filter_by(uuid=service_uuid)
|
|
try:
|
|
return query.one()
|
|
except NoResultFound:
|
|
raise exception.ServiceNotFound(service=service_uuid)
|
|
|
|
def get_service_by_bay_uuid(self, bay_uuid):
|
|
query = model_query(models.Service).filter_by(bay_uuid=bay_uuid)
|
|
try:
|
|
return query.all()
|
|
except NoResultFound:
|
|
raise exception.ServiceNotFound(bay=bay_uuid)
|
|
|
|
def destroy_service(self, service_id):
|
|
session = get_session()
|
|
with session.begin():
|
|
query = model_query(models.Service, session=session)
|
|
query = add_identity_filter(query, service_id)
|
|
query.delete()
|
|
|
|
def update_service(self, service_id, values):
|
|
# NOTE(dtantsur): this can lead to very strange errors
|
|
if 'uuid' in values:
|
|
msg = _("Cannot overwrite UUID for an existing Service.")
|
|
raise exception.InvalidParameterValue(err=msg)
|
|
|
|
try:
|
|
return self._do_update_service(service_id, values)
|
|
except db_exc.DBDuplicateEntry:
|
|
raise exception.InstanceAssociated(
|
|
instance_uuid=values['instance_uuid'],
|
|
service=service_id)
|
|
|
|
def _do_update_service(self, service_id, values):
|
|
session = get_session()
|
|
with session.begin():
|
|
query = model_query(models.Service, session=session)
|
|
query = add_identity_filter(query, service_id)
|
|
try:
|
|
ref = query.with_lockmode('update').one()
|
|
except NoResultFound:
|
|
raise exception.ServiceNotFound(service=service_id)
|
|
|
|
# Prevent instance_uuid overwriting
|
|
if values.get("instance_uuid") and ref.instance_uuid:
|
|
raise exception.ServiceAssociated(service=service_id,
|
|
instance=ref.instance_uuid)
|
|
|
|
if 'provision_state' in values:
|
|
values['provision_updated_at'] = timeutils.utcnow()
|
|
|
|
ref.update(values)
|
|
return ref
|