924a11fae7
202 response is sent before the calls to nova/volume are completed. So need to rely on our database for some info in the response, and hence the SimpleInstance. If anything fails during the async creation process, ServiceStatus is updated to ERROR. Likewise, if the get/list calls fails from server/volume, we can use the SimpleInstance.
79 lines
2.9 KiB
Python
79 lines
2.9 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2011 OpenStack LLC.
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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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import logging
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import traceback
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import weakref
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from eventlet import greenthread
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from reddwarf.common import service
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from reddwarf.taskmanager import models
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from reddwarf.taskmanager.models import InstanceTasks
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LOG = logging.getLogger(__name__)
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class TaskManager(service.Manager):
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"""Task manager impl"""
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def __init__(self, *args, **kwargs):
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self.tasks = weakref.WeakKeyDictionary()
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super(TaskManager, self).__init__(*args, **kwargs)
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LOG.info(_("TaskManager init %s %s") % (args, kwargs))
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def periodic_tasks(self, raise_on_error=False):
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LOG.debug("No. of running tasks: %r" % len(self.tasks))
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def _wrapper(self, method, context, *args, **kwargs):
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"""Maps the respective manager method with a task counter."""
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# TODO(rnirmal): Just adding a basic counter. Will revist and
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# re-implement when we have actual tasks.
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self.tasks[greenthread.getcurrent()] = context
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try:
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func = getattr(self, method)
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func(context, *args, **kwargs)
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except Exception as e:
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LOG.error("Got an error running %s!" % method)
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LOG.error(traceback.format_exc())
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finally:
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del self.tasks[greenthread.getcurrent()]
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def resize_volume(self, context, instance_id, new_size):
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instance_tasks = models.InstanceTasks.load(context, instance_id)
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instance_tasks.resize_volume(new_size)
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def resize_flavor(self, context, instance_id, new_flavor_id,
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old_flavor_size, new_flavor_size):
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instance_tasks = models.InstanceTasks.load(context, instance_id)
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instance_tasks.resize_flavor(new_flavor_id, old_flavor_size,
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new_flavor_size)
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def delete_instance(self, context, instance_id):
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instance_tasks = models.InstanceTasks.load(context, instance_id)
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instance_tasks.delete_instance()
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def create_instance(self, context, instance_id, name, flavor_ref,
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image_id, databases, service_type, volume_size):
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instance_tasks = InstanceTasks(context)
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instance_tasks.create_instance(instance_id, name, flavor_ref,
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image_id, databases,
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service_type, volume_size)
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