b4b746dae9
These will be used to do out-of-band cleanup in the near future, so they are no longer specific to the cleanup context. Change-Id: I5b5c7c89b04a080c487936cc3df0df24929ced31 Implements: blueprint cleanup-refactoring
122 lines
4.3 KiB
Python
122 lines
4.3 KiB
Python
# Copyright 2014: Mirantis Inc.
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# All Rights Reserved.
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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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from oslo_config import cfg
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from rally.task import utils
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CONF = cfg.CONF
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CLEANUP_OPTS = [
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cfg.IntOpt("resource_deletion_timeout", default=600,
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help="A timeout in seconds for deleting resources")
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]
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cleanup_group = cfg.OptGroup(name="cleanup", title="Cleanup Options")
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CONF.register_group(cleanup_group)
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CONF.register_opts(CLEANUP_OPTS, cleanup_group)
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def resource(service, resource, order=0, admin_required=False,
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perform_for_admin_only=False, tenant_resource=False,
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max_attempts=3, timeout=CONF.cleanup.resource_deletion_timeout,
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interval=1, threads=20):
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"""Decorator that overrides resource specification.
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Just put it on top of your resource class and specify arguments that you
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need.
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:param service: It is equal to client name for corresponding service.
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E.g. "nova", "cinder" or "zaqar"
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:param resource: Client manager name for resource. E.g. in case of
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nova.servers you should write here "servers"
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:param order: Used to adjust priority of cleanup for different resource
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types
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:param admin_required: Admin user is required
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:param perform_for_admin_only: Perform cleanup for admin user only
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:param tenant_resource: Perform deletion only 1 time per tenant
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:param max_attempts: Max amount of attempts to delete single resource
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:param timeout: Max duration of deletion in seconds
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:param interval: Resource status pooling interval
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:param threads: Amount of threads (workers) that are deleting resources
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simultaneously
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"""
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def inner(cls):
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# TODO(boris-42): This can be written better I believe =)
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cls._service = service
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cls._resource = resource
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cls._order = order
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cls._admin_required = admin_required
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cls._perform_for_admin_only = perform_for_admin_only
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cls._max_attempts = max_attempts
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cls._timeout = timeout
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cls._interval = interval
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cls._threads = threads
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cls._tenant_resource = tenant_resource
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return cls
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return inner
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@resource(service=None, resource=None)
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class ResourceManager(object):
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"""Base class for cleanup plugins for specific resources.
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You should use @resource decorator to specify major configuration of
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resource manager. Usually you should specify: service, resource and order.
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If project python client is very specific, you can override delete(),
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list() and is_deleted() methods to make them fit to your case.
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"""
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def __init__(self, resource=None, admin=None, user=None, tenant_uuid=None):
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self.admin = admin
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self.user = user
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self.raw_resource = resource
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self.tenant_uuid = tenant_uuid
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def _manager(self):
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client = self._admin_required and self.admin or self.user
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return getattr(getattr(client, self._service)(), self._resource)
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def id(self):
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"""Returns id of resource."""
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return self.raw_resource.id
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def is_deleted(self):
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"""Checks if the resource is deleted.
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Fetch resource by id from service and check it status.
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In case of NotFound or status is DELETED or DELETE_COMPLETE returns
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True, otherwise False.
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"""
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try:
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resource = self._manager().get(self.id())
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except Exception as e:
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return getattr(e, "code", getattr(e, "http_status", 400)) == 404
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return utils.get_status(resource) in ("DELETED", "DELETE_COMPLETE")
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def delete(self):
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"""Delete resource that corresponds to instance of this class."""
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self._manager().delete(self.id())
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def list(self):
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"""List all resources specific for admin or user."""
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return self._manager().list()
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