226 lines
9.0 KiB
Python
226 lines
9.0 KiB
Python
# Copyright (c) 2012 Citrix Systems, 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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"""The Aggregate admin API extension."""
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import datetime
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from webob import exc
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from nova.api.openstack import common
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from nova.api.openstack.compute.schemas import aggregates
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from nova.api.openstack import extensions
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from nova.api.openstack import wsgi
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from nova.api import validation
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from nova.compute import api as compute_api
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from nova import exception
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from nova.i18n import _
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ALIAS = "os-aggregates"
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authorize = extensions.os_compute_authorizer(ALIAS)
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def _get_context(req):
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return req.environ['nova.context']
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class AggregateController(wsgi.Controller):
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"""The Host Aggregates API controller for the OpenStack API."""
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def __init__(self):
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self.api = compute_api.AggregateAPI()
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@extensions.expected_errors(())
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def index(self, req):
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"""Returns a list a host aggregate's id, name, availability_zone."""
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context = _get_context(req)
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authorize(context, action='index')
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aggregates = self.api.get_aggregate_list(context)
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return {'aggregates': [self._marshall_aggregate(a)['aggregate']
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for a in aggregates]}
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# NOTE(gmann): Returns 200 for backwards compatibility but should be 201
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# as this operation complete the creation of aggregates resource.
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@extensions.expected_errors((400, 409))
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@validation.schema(aggregates.create_v20, '2.0', '2.0')
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@validation.schema(aggregates.create, '2.1')
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def create(self, req, body):
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"""Creates an aggregate, given its name and
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optional availability zone.
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"""
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context = _get_context(req)
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authorize(context, action='create')
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host_aggregate = body["aggregate"]
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name = common.normalize_name(host_aggregate["name"])
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avail_zone = host_aggregate.get("availability_zone")
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if avail_zone:
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avail_zone = common.normalize_name(avail_zone)
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try:
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aggregate = self.api.create_aggregate(context, name, avail_zone)
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except exception.AggregateNameExists as e:
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raise exc.HTTPConflict(explanation=e.format_message())
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except exception.InvalidAggregateAction as e:
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raise exc.HTTPBadRequest(explanation=e.format_message())
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agg = self._marshall_aggregate(aggregate)
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# To maintain the same API result as before the changes for returning
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# nova objects were made.
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del agg['aggregate']['hosts']
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del agg['aggregate']['metadata']
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return agg
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@extensions.expected_errors(404)
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def show(self, req, id):
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"""Shows the details of an aggregate, hosts and metadata included."""
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context = _get_context(req)
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authorize(context, action='show')
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try:
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aggregate = self.api.get_aggregate(context, id)
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except exception.AggregateNotFound as e:
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raise exc.HTTPNotFound(explanation=e.format_message())
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return self._marshall_aggregate(aggregate)
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@extensions.expected_errors((400, 404, 409))
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@validation.schema(aggregates.update_v20, '2.0', '2.0')
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@validation.schema(aggregates.update, '2.1')
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def update(self, req, id, body):
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"""Updates the name and/or availability_zone of given aggregate."""
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context = _get_context(req)
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authorize(context, action='update')
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updates = body["aggregate"]
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if 'name' in updates:
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updates['name'] = common.normalize_name(updates['name'])
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try:
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aggregate = self.api.update_aggregate(context, id, updates)
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except exception.AggregateNameExists as e:
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raise exc.HTTPConflict(explanation=e.format_message())
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except exception.AggregateNotFound as e:
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raise exc.HTTPNotFound(explanation=e.format_message())
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except exception.InvalidAggregateAction as e:
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raise exc.HTTPBadRequest(explanation=e.format_message())
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return self._marshall_aggregate(aggregate)
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# NOTE(gmann): Returns 200 for backwards compatibility but should be 204
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# as this operation complete the deletion of aggregate resource and return
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# no response body.
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@extensions.expected_errors((400, 404))
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def delete(self, req, id):
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"""Removes an aggregate by id."""
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context = _get_context(req)
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authorize(context, action='delete')
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try:
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self.api.delete_aggregate(context, id)
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except exception.AggregateNotFound as e:
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raise exc.HTTPNotFound(explanation=e.format_message())
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except exception.InvalidAggregateAction as e:
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raise exc.HTTPBadRequest(explanation=e.format_message())
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# NOTE(gmann): Returns 200 for backwards compatibility but should be 202
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# for representing async API as this API just accepts the request and
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# request hypervisor driver to complete the same in async mode.
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@extensions.expected_errors((400, 404, 409))
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@wsgi.action('add_host')
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@validation.schema(aggregates.add_host)
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def _add_host(self, req, id, body):
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"""Adds a host to the specified aggregate."""
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host = body['add_host']['host']
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context = _get_context(req)
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authorize(context, action='add_host')
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try:
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aggregate = self.api.add_host_to_aggregate(context, id, host)
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except (exception.AggregateNotFound,
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exception.ComputeHostNotFound) as e:
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raise exc.HTTPNotFound(explanation=e.format_message())
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except (exception.AggregateHostExists,
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exception.InvalidAggregateAction) as e:
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raise exc.HTTPConflict(explanation=e.format_message())
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return self._marshall_aggregate(aggregate)
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# NOTE(gmann): Returns 200 for backwards compatibility but should be 202
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# for representing async API as this API just accepts the request and
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# request hypervisor driver to complete the same in async mode.
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@extensions.expected_errors((400, 404, 409))
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@wsgi.action('remove_host')
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@validation.schema(aggregates.remove_host)
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def _remove_host(self, req, id, body):
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"""Removes a host from the specified aggregate."""
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host = body['remove_host']['host']
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context = _get_context(req)
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authorize(context, action='remove_host')
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try:
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aggregate = self.api.remove_host_from_aggregate(context, id, host)
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except (exception.AggregateNotFound, exception.AggregateHostNotFound,
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exception.ComputeHostNotFound):
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msg = _('Cannot remove host %(host)s in aggregate %(id)s') % {
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'host': host, 'id': id}
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raise exc.HTTPNotFound(explanation=msg)
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except exception.InvalidAggregateAction:
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msg = _('Cannot remove host %(host)s in aggregate %(id)s') % {
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'host': host, 'id': id}
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raise exc.HTTPConflict(explanation=msg)
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return self._marshall_aggregate(aggregate)
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@extensions.expected_errors((400, 404))
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@wsgi.action('set_metadata')
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@validation.schema(aggregates.set_metadata)
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def _set_metadata(self, req, id, body):
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"""Replaces the aggregate's existing metadata with new metadata."""
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context = _get_context(req)
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authorize(context, action='set_metadata')
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metadata = body["set_metadata"]["metadata"]
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try:
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aggregate = self.api.update_aggregate_metadata(context,
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id, metadata)
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except exception.AggregateNotFound as e:
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raise exc.HTTPNotFound(explanation=e.format_message())
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except exception.InvalidAggregateAction as e:
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raise exc.HTTPBadRequest(explanation=e.format_message())
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return self._marshall_aggregate(aggregate)
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def _marshall_aggregate(self, aggregate):
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_aggregate = {}
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for key, value in aggregate.items():
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# NOTE(danms): The original API specified non-TZ-aware timestamps
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if isinstance(value, datetime.datetime):
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value = value.replace(tzinfo=None)
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_aggregate[key] = value
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return {"aggregate": _aggregate}
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class Aggregates(extensions.V21APIExtensionBase):
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"""Admin-only aggregate administration."""
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name = "Aggregates"
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alias = ALIAS
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version = 1
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def get_resources(self):
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resources = [extensions.ResourceExtension(
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ALIAS,
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AggregateController(),
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member_actions={'action': 'POST'})]
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return resources
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def get_controller_extensions(self):
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return []
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