103 lines
4.4 KiB
Python
103 lines
4.4 KiB
Python
# Copyright 2013 Rackspace Hosting
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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 shelved mode extension."""
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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 import wsgi
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from nova.compute import api as compute
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from nova.compute import vm_states
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from nova import exception
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from nova.i18n import _
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from nova import network
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from nova.policies import shelve as shelve_policies
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class ShelveController(wsgi.Controller):
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def __init__(self, *args, **kwargs):
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super(ShelveController, self).__init__(*args, **kwargs)
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self.compute_api = compute.API()
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self.network_api = network.API()
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@wsgi.response(202)
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@wsgi.expected_errors((404, 409))
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@wsgi.action('shelve')
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def _shelve(self, req, id, body):
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"""Move an instance into shelved mode."""
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context = req.environ["nova.context"]
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instance = common.get_instance(self.compute_api, context, id)
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context.can(shelve_policies.POLICY_ROOT % 'shelve',
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target={'user_id': instance.user_id,
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'project_id': instance.project_id})
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try:
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self.compute_api.shelve(context, instance)
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except exception.InstanceIsLocked as e:
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raise exc.HTTPConflict(explanation=e.format_message())
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except exception.InstanceInvalidState as state_error:
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common.raise_http_conflict_for_instance_invalid_state(state_error,
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'shelve', id)
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@wsgi.response(202)
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@wsgi.expected_errors((404, 409))
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@wsgi.action('shelveOffload')
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def _shelve_offload(self, req, id, body):
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"""Force removal of a shelved instance from the compute node."""
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context = req.environ["nova.context"]
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context.can(shelve_policies.POLICY_ROOT % 'shelve_offload')
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instance = common.get_instance(self.compute_api, context, id)
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try:
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self.compute_api.shelve_offload(context, instance)
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except exception.InstanceIsLocked as e:
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raise exc.HTTPConflict(explanation=e.format_message())
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except exception.InstanceInvalidState as state_error:
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common.raise_http_conflict_for_instance_invalid_state(state_error,
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'shelveOffload',
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id)
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@wsgi.response(202)
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@wsgi.expected_errors((400, 404, 409))
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@wsgi.action('unshelve')
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def _unshelve(self, req, id, body):
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"""Restore an instance from shelved mode."""
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context = req.environ["nova.context"]
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context.can(shelve_policies.POLICY_ROOT % 'unshelve')
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instance = common.get_instance(self.compute_api, context, id)
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# We could potentially move this check to conductor and avoid the
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# extra API call to neutron when we support move operations with ports
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# having resource requests.
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if (instance.vm_state == vm_states.SHELVED_OFFLOADED
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and common.instance_has_port_with_resource_request(
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context, instance.uuid, self.network_api)
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and not common.supports_port_resource_request_during_move(
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req)):
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msg = _("The unshelve action on a server with ports having "
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"resource requests, like a port with a QoS minimum "
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"bandwidth policy, is not supported with this "
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"microversion")
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raise exc.HTTPBadRequest(explanation=msg)
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try:
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self.compute_api.unshelve(context, instance)
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except exception.InstanceIsLocked as e:
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raise exc.HTTPConflict(explanation=e.format_message())
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except exception.InstanceInvalidState as state_error:
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common.raise_http_conflict_for_instance_invalid_state(state_error,
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'unshelve',
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id)
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