55502af5d2
Fix all existing pep8 errors. Remove install_venv and friends, which were not needed. Add a few ignores for nova code that is yet to be cleaned up. Skip one failing test case, fixed by review 29394. Import contrib/redhat-eventlet.patch from Nova. Change-Id: I46b6ccaa272bd058757064672ce9221263ed7087
154 lines
3.9 KiB
Python
154 lines
3.9 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# -*- 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 ironic.openstack.common.db import api as db_api
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_BACKEND_MAPPING = {'sqlalchemy': 'ironic.db.sqlalchemy.api'}
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def get_instance():
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"""Return a DB API instance."""
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IMPL = db_api.DBAPI(backend_mapping=_BACKEND_MAPPING)
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return IMPL
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class Connection(object):
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"""Base class for storage system connections."""
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__metaclass__ = abc.ABCMeta
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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_nodes(self, columns):
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"""Return a list of dicts of all nodes.
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:param columns: List of columns to return.
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"""
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@abc.abstractmethod
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def get_associated_nodes(self):
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"""Return a list of ids of all associated nodes."""
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@abc.abstractmethod
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def get_unassociated_nodes(self):
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"""Return a list of ids of all unassociated nodes."""
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@abc.abstractmethod
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def reserve_node(self, node, values):
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"""Associate a node with an instance.
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:param node: The id or uuid of a node.
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:param values: Values to set while reserving the node.
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Must include 'instance_uuid'.
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:return: The reserved Node.
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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: Values to instantiate the node with.
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:returns: Node.
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"""
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@abc.abstractmethod
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def get_node(self, node):
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"""Return a node.
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:param node: The id or uuid of a node.
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:return Node:
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"""
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@abc.abstractmethod
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def get_node_by_instance(self, instance):
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"""Return a node.
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:param instance: The instance name or uuid to search for.
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:returns: Node.
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"""
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@abc.abstractmethod
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def destroy_node(self, node):
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"""Destroy a node and all associated interfaces.
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:param node: 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, values):
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"""Update properties of a node.
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:param node: The id or uuid of a node.
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:param values: Dict of values to update.
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:returns: Node.
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"""
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@abc.abstractmethod
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def get_iface(self, iface):
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"""Return an interface.
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:param iface: The id or MAC of an interface.
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:returns: Iface.
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"""
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@abc.abstractmethod
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def get_iface_by_vif(self, vif):
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"""Return the interface corresponding to this VIF.
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:param vif: The uuid of the VIF.
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:returns: Iface.
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"""
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@abc.abstractmethod
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def get_iface_by_node(self, node):
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"""List all the interfaces for a given node.
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:param node: The id or uuid of a node.
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:returns: list of Iface.
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"""
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@abc.abstractmethod
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def create_iface(self, values):
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"""Create a new iface.
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:param values: Dict of values.
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"""
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@abc.abstractmethod
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def update_iface(self, iface, values):
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"""Update properties of an iface.
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:param iface: The id or MAC of an interface.
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:param values: Dict of values to update.
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:returns: Iface.
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"""
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@abc.abstractmethod
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def destroy_iface(self, iface):
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"""Destroy an iface.
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:param iface: The id or MAC of an interface.
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"""
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