564 lines
18 KiB
Python
564 lines
18 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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"""
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Base classes for storage engines
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"""
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import abc
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from oslo.config import cfg
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from oslo.db import api as db_api
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import six
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_BACKEND_MAPPING = {'sqlalchemy': 'magnum.db.sqlalchemy.api'}
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IMPL = db_api.DBAPI.from_config(cfg.CONF, backend_mapping=_BACKEND_MAPPING,
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lazy=True)
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def get_instance():
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"""Return a DB API instance."""
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return IMPL
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@six.add_metaclass(abc.ABCMeta)
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class Connection(object):
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"""Base class for storage system connections."""
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@abc.abstractmethod
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def __init__(self):
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"""Constructor."""
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@abc.abstractmethod
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def get_bay_list(self, columns=None, filters=None, limit=None,
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marker=None, sort_key=None, sort_dir=None):
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"""Get specific columns for matching bays.
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Return a list of the specified columns for all bays that match the
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specified filters.
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:param columns: List of column names to return.
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Defaults to 'id' column when columns == None.
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:param filters: Filters to apply. Defaults to None.
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:param limit: Maximum number of bays to return.
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:param marker: the last item of the previous page; we return the next
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result set.
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:param sort_key: Attribute by which results should be sorted.
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:param sort_dir: direction in which results should be sorted.
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(asc, desc)
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:returns: A list of tuples of the specified columns.
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"""
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@abc.abstractmethod
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def create_bay(self, values):
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"""Create a new bay.
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:param values: A dict containing several items used to identify
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and track the bay, and several dicts which are passed
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into the Drivers when managing this bay. For example:
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::
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{
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'uuid': utils.generate_uuid(),
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'name': 'example',
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'type': 'virt'
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}
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:returns: A bay.
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"""
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@abc.abstractmethod
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def get_bay_by_id(self, bay_id):
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"""Return a bay.
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:param bay_id: The id of a bay.
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:returns: A bay.
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"""
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@abc.abstractmethod
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def get_bay_by_uuid(self, bay_uuid):
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"""Return a bay.
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:param bay_uuid: The uuid of a bay.
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:returns: A bay.
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"""
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@abc.abstractmethod
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def destroy_bay(self, bay_id):
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"""Destroy a bay and all associated interfaces.
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:param bay_id: The id or uuid of a bay.
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"""
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@abc.abstractmethod
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def update_bay(self, bay_id, values):
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"""Update properties of a bay.
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:param bay_id: The id or uuid of a bay.
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:returns: A bay.
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:raises: BayAssociated
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:raises: BayNotFound
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"""
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@abc.abstractmethod
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def get_baymodel_list(self, columns=None, filters=None, limit=None,
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marker=None, sort_key=None, sort_dir=None):
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"""Get specific columns for matching baymodels.
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Return a list of the specified columns for all baymodels that match the
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specified filters.
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:param columns: List of column names to return.
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Defaults to 'id' column when columns == None.
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:param filters: Filters to apply. Defaults to None.
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:param limit: Maximum number of baymodels to return.
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:param marker: the last item of the previous page; we return the next
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result set.
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:param sort_key: Attribute by which results should be sorted.
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:param sort_dir: direction in which results should be sorted.
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(asc, desc)
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:returns: A list of tuples of the specified columns.
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"""
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@abc.abstractmethod
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def create_baymodel(self, values):
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"""Create a new baymodel.
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:param values: A dict containing several items used to identify
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and track the baymodel, and several dicts which are
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passed into the Drivers when managing this baymodel.
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For example:
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::
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{
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'uuid': utils.generate_uuid(),
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'name': 'example',
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'type': 'virt'
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}
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:returns: A baymodel.
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"""
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@abc.abstractmethod
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def get_baymodel_by_id(self, baymodel_id):
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"""Return a baymodel.
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:param baymodel_id: The id of a baymodel.
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:returns: A baymodel.
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"""
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@abc.abstractmethod
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def get_baymodel_by_uuid(self, baymodel_uuid):
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"""Return a baymodel.
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:param baymodel_uuid: The uuid of a baymodel.
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:returns: A baymodel.
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"""
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@abc.abstractmethod
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def destroy_baymodel(self, baymodel_id):
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"""Destroy a baymodel and all associated interfaces.
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:param baymodel_id: The id or uuid of a baymodel.
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"""
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@abc.abstractmethod
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def update_baymodel(self, baymodel_id, values):
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"""Update properties of a baymodel.
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:param baymodel_id: The id or uuid of a baymodel.
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:returns: A baymodel.
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:raises: BayModelNotFound
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"""
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@abc.abstractmethod
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def get_container_list(self, columns=None, filters=None, limit=None,
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marker=None, sort_key=None, sort_dir=None):
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"""Get specific columns for matching containers.
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Return a list of the specified columns for all containers that match
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the specified filters.
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:param columns: List of column names to return.
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Defaults to 'id' column when columns == None.
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:param filters: Filters to apply. Defaults to None.
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:param limit: Maximum number of containers to return.
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:param marker: the last item of the previous page; we return the next
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result set.
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:param sort_key: Attribute by which results should be sorted.
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:param sort_dir: direction in which results should be sorted.
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(asc, desc)
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:returns: A list of tuples of the specified columns.
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"""
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@abc.abstractmethod
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def create_container(self, values):
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"""Create a new container.
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:param values: A dict containing several items used to identify
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and track the container, and several dicts which are
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passed
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into the Drivers when managing this container. For
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example:
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::
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{
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'uuid': utils.generate_uuid(),
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'name': 'example',
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'type': 'virt'
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}
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:returns: A container.
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"""
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@abc.abstractmethod
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def get_container_by_id(self, container_id):
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"""Return a container.
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:param container_id: The id of a container.
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:returns: A container.
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"""
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@abc.abstractmethod
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def get_container_by_uuid(self, container_uuid):
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"""Return a container.
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:param container_uuid: The uuid of a container.
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:returns: A container.
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"""
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@abc.abstractmethod
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def destroy_container(self, container_id):
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"""Destroy a container and all associated interfaces.
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:param container_id: The id or uuid of a container.
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"""
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@abc.abstractmethod
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def update_container(self, container_id, values):
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"""Update properties of a container.
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:param container_id: The id or uuid of a container.
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:returns: A container.
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:raises: BayAssociated
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:raises: BayNotFound
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"""
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@abc.abstractmethod
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def get_node_list(self, columns=None, filters=None, limit=None,
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marker=None, sort_key=None, sort_dir=None):
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"""Get specific columns for matching nodes.
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Return a list of the specified columns for all nodes that match the
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specified filters.
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:param columns: List of column names to return.
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Defaults to 'id' column when columns == None.
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:param filters: Filters to apply. Defaults to None.
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:param limit: Maximum number of nodes to return.
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:param marker: the last item of the previous page; we return the next
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result set.
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:param sort_key: Attribute by which results should be sorted.
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:param sort_dir: direction in which results should be sorted.
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(asc, desc)
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:returns: A list of tuples of the specified columns.
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"""
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@abc.abstractmethod
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def create_node(self, values):
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"""Create a new node.
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:param values: A dict containing several items used to identify
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and track the node, and several dicts which are passed
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into the Drivers when managing this node. For example:
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::
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{
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'uuid': utils.generate_uuid(),
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'name': 'example',
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'type': 'virt'
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}
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:returns: A node.
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"""
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@abc.abstractmethod
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def get_node_by_id(self, node_id):
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"""Return a node.
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:param node_id: The id of a node.
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:returns: A node.
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"""
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@abc.abstractmethod
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def get_node_by_uuid(self, node_uuid):
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"""Return a node.
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:param node_uuid: The uuid of a node.
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:returns: A node.
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"""
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@abc.abstractmethod
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def destroy_node(self, node_id):
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"""Destroy a node and all associated interfaces.
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:param node_id: The id or uuid of a node.
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"""
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@abc.abstractmethod
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def update_node(self, node_id, values):
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"""Update properties of a node.
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:param node_id: The id or uuid of a node.
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:returns: A node.
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:raises: NodeAssociated
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:raises: NodeNotFound
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"""
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@abc.abstractmethod
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def get_pod_list(self, columns=None, filters=None, limit=None,
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marker=None, sort_key=None, sort_dir=None):
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"""Get specific columns for matching pods.
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Return a list of the specified columns for all pods that match the
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specified filters.
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:param columns: List of column names to return.
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Defaults to 'id' column when columns == None.
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:param filters: Filters to apply. Defaults to None.
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:param limit: Maximum number of pods to return.
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:param marker: the last item of the previous page; we return the next
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result set.
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:param sort_key: Attribute by which results should be sorted.
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:param sort_dir: direction in which results should be sorted.
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(asc, desc)
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:returns: A list of tuples of the specified columns.
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"""
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@abc.abstractmethod
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def create_pod(self, values):
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"""Create a new pod.
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:param values: A dict containing several items used to identify
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and track the pod, and several dicts which are passed
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into the Drivers when managing this pod. For example:
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::
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{
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'uuid': utils.generate_uuid(),
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'name': 'example',
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'type': 'virt'
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}
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:returns: A pod.
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"""
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@abc.abstractmethod
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def get_pod_by_id(self, pod_id):
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"""Return a pod.
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:param pod_id: The id of a pod.
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:returns: A pod.
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"""
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@abc.abstractmethod
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def get_pod_by_uuid(self, pod_uuid):
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"""Return a pod.
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:param pod_uuid: The uuid of a pod.
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:returns: A pod.
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"""
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@abc.abstractmethod
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def get_pod_by_name(self, pod_name):
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"""Return a pod.
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:param pod_name: The name of a pod.
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:returns: A pod.
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"""
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@abc.abstractmethod
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def destroy_pod(self, pod_id):
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"""Destroy a pod and all associated interfaces.
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:param pod_id: The id or uuid of a pod.
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"""
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@abc.abstractmethod
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def update_pod(self, pod_id, values):
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"""Update properties of a pod.
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:param pod_id: The id or uuid of a pod.
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:returns: A pod.
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:raises: BayAssociated
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:raises: BayNotFound
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"""
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@abc.abstractmethod
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def get_service_list(self, columns=None, filters=None, limit=None,
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marker=None, sort_key=None, sort_dir=None):
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"""Get specific columns for matching services.
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Return a list of the specified columns for all services that match the
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specified filters.
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:param columns: List of column names to return.
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Defaults to 'id' column when columns == None.
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:param filters: Filters to apply. Defaults to None.
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:param limit: Maximum number of services to return.
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:param marker: the last item of the previous page; we return the next
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result set.
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:param sort_key: Attribute by which results should be sorted.
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:param sort_dir: direction in which results should be sorted.
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(asc, desc)
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:returns: A list of tuples of the specified columns.
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"""
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@abc.abstractmethod
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def create_service(self, values):
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"""Create a new service.
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:param values: A dict containing several items used to identify
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and track the service, and several dicts which are
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passed into the Drivers when managing this service.
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For example:
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::
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{
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'uuid': utils.generate_uuid(),
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'name': 'example',
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'type': 'virt'
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}
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:returns: A service.
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"""
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@abc.abstractmethod
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def get_service_by_id(self, service_id):
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"""Return a service.
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:param service_id: The id of a service.
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:returns: A service.
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"""
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@abc.abstractmethod
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def get_service_by_uuid(self, service_uuid):
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"""Return a service.
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:param service_uuid: The uuid of a service.
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:returns: A service.
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"""
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@abc.abstractmethod
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def destroy_service(self, service_id):
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"""Destroy a service and all associated interfaces.
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:param service_id: The id or uuid of a service.
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"""
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@abc.abstractmethod
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def update_service(self, service_id, values):
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"""Update properties of a service.
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:param service_id: The id or uuid of a service.
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:returns: A service.
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:raises: BayAssociated
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:raises: BayNotFound
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"""
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@abc.abstractmethod
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def get_rc_list(self, columns=None, filters=None, limit=None,
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marker=None, sort_key=None, sort_dir=None):
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"""Get specific columns for matching ReplicationController.
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Return a list of the specified columns for all rcs that match the
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specified filters.
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:param columns: List of column names to return.
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Defaults to 'id' column when columns == None.
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:param filters: Filters to apply. Defaults to None.
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:param limit: Maximum number of pods to return.
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:param marker: the last item of the previous page; we return the next
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result set.
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:param sort_key: Attribute by which results should be sorted.
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:param sort_dir: direction in which results should be sorted.
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(asc, desc)
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:returns: A list of tuples of the specified columns.
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"""
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@abc.abstractmethod
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def create_rc(self, values):
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"""Create a new ReplicationController.
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:param values: A dict containing several items used to identify
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and track the rc, and several dicts which are passed
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into the Drivers when managing this pod. For example:
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::
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{
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'uuid': utils.generate_uuid(),
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'name': 'example',
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'images': '["myimage"]'
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}
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:returns: A ReplicationController.
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"""
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@abc.abstractmethod
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def get_rc_by_id(self, rc_id):
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"""Return a ReplicationController.
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:param rc_id: The id of a rc.
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:returns: A ReplicationController.
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"""
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@abc.abstractmethod
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def get_rc_by_uuid(self, rc_uuid):
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"""Return a ReplicationController.
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:param rc_uuid: The uuid of a ReplicationController.
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:returns: A ReplicationController.
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"""
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@abc.abstractmethod
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def get_rc_by_name(self, rc_name):
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"""Return a ReplicationController.
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:param rc_name: The name of a ReplicationController.
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:returns: A ReplicationController.
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"""
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@abc.abstractmethod
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def destroy_rc(self, rc_id):
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"""Destroy a ReplicationController and all associated interfaces.
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:param rc_id: The id or uuid of a ReplicationController.
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"""
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@abc.abstractmethod
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def update_rc(self, rc_id, values):
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"""Update properties of a ReplicationController.
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:param rc_id: The id or uuid of a ReplicationController.
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:returns: A ReplicationController.
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"""
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