102 lines
3.9 KiB
Python
102 lines
3.9 KiB
Python
# Copyright 2011 OpenStack Foundation
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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 rescue mode extension."""
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from webob import exc
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from nova.api.openstack import api_version_request
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from nova.api.openstack import common
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from nova.api.openstack.compute.schemas import rescue
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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
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import nova.conf
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from nova import exception
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from nova.policies import rescue as rescue_policies
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from nova import utils
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CONF = nova.conf.CONF
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class RescueController(wsgi.Controller):
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def __init__(self):
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super(RescueController, self).__init__()
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self.compute_api = compute.API()
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# TODO(cyeoh): Should be responding here with 202 Accept
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# because rescue is an async call, but keep to 200
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# for backwards compatibility reasons.
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@wsgi.expected_errors((400, 404, 409, 501))
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@wsgi.action('rescue')
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@validation.schema(rescue.rescue)
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def _rescue(self, req, id, body):
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"""Rescue an instance."""
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context = req.environ["nova.context"]
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if body['rescue'] and 'adminPass' in body['rescue']:
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password = body['rescue']['adminPass']
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else:
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password = utils.generate_password()
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instance = common.get_instance(self.compute_api, context, id)
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context.can(rescue_policies.BASE_POLICY_NAME,
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target={'user_id': instance.user_id,
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'project_id': instance.project_id})
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rescue_image_ref = None
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if body['rescue']:
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rescue_image_ref = body['rescue'].get('rescue_image_ref')
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allow_bfv_rescue = api_version_request.is_supported(req, '2.87')
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try:
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self.compute_api.rescue(context, instance,
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rescue_password=password,
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rescue_image_ref=rescue_image_ref,
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allow_bfv_rescue=allow_bfv_rescue)
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except (
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exception.InstanceIsLocked,
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exception.InvalidVolume,
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) as e:
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raise exc.HTTPConflict(explanation=e.format_message())
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except exception.InstanceInvalidState as e:
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common.raise_http_conflict_for_instance_invalid_state(
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e, 'rescue', id)
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except (
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exception.InstanceNotRescuable,
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exception.UnsupportedRescueImage,
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) as e:
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raise exc.HTTPBadRequest(explanation=e.format_message())
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if CONF.api.enable_instance_password:
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return {'adminPass': password}
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else:
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return {}
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@wsgi.response(202)
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@wsgi.expected_errors((404, 409, 501))
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@wsgi.action('unrescue')
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def _unrescue(self, req, id, body):
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"""Unrescue an instance."""
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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(rescue_policies.UNRESCUE_POLICY_NAME,
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target={'project_id': instance.project_id})
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try:
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self.compute_api.unrescue(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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'unrescue',
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id)
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