102 lines
3.5 KiB
Python
102 lines
3.5 KiB
Python
# Copyright 2013 OpenStack Foundation
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License"); you may
|
|
# not use this file except in compliance with the License. You may obtain
|
|
# a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
# License for the specific language governing permissions and limitations
|
|
# under the License.
|
|
|
|
|
|
from webob import exc
|
|
|
|
from nova.api.openstack import common
|
|
from nova.api.openstack import extensions
|
|
from nova.api.openstack import wsgi
|
|
from nova import compute
|
|
from nova import exception
|
|
from nova.openstack.common.gettextutils import _
|
|
from nova.openstack.common import log as logging
|
|
from nova.openstack.common import strutils
|
|
from nova import utils
|
|
|
|
LOG = logging.getLogger(__name__)
|
|
ALIAS = "os-evacuate"
|
|
authorize = extensions.extension_authorizer('compute', 'v3:' + ALIAS)
|
|
|
|
|
|
class EvacuateController(wsgi.Controller):
|
|
def __init__(self, *args, **kwargs):
|
|
super(EvacuateController, self).__init__(*args, **kwargs)
|
|
self.compute_api = compute.API()
|
|
|
|
@wsgi.action('evacuate')
|
|
def _evacuate(self, req, id, body):
|
|
"""
|
|
Permit admins to evacuate a server from a failed host
|
|
to a new one.
|
|
"""
|
|
context = req.environ["nova.context"]
|
|
authorize(context)
|
|
|
|
try:
|
|
if len(body) != 1:
|
|
raise exc.HTTPBadRequest(_("Malformed request body"))
|
|
|
|
evacuate_body = body["evacuate"]
|
|
host = evacuate_body["host"]
|
|
on_shared_storage = strutils.bool_from_string(
|
|
evacuate_body["on_shared_storage"])
|
|
|
|
password = None
|
|
if 'admin_password' in evacuate_body:
|
|
# check that if requested to evacuate server on shared storage
|
|
# password not specified
|
|
if on_shared_storage:
|
|
msg = _("admin password can't be changed on existing disk")
|
|
raise exc.HTTPBadRequest(explanation=msg)
|
|
|
|
password = evacuate_body['admin_password']
|
|
elif not on_shared_storage:
|
|
password = utils.generate_password()
|
|
|
|
except (TypeError, KeyError):
|
|
msg = _("host and on_shared_storage must be specified.")
|
|
raise exc.HTTPBadRequest(explanation=msg)
|
|
|
|
try:
|
|
instance = self.compute_api.get(context, id)
|
|
self.compute_api.evacuate(context, instance, host,
|
|
on_shared_storage, password)
|
|
except exception.InstanceInvalidState as state_error:
|
|
common.raise_http_conflict_for_instance_invalid_state(state_error,
|
|
'evacuate')
|
|
except Exception as e:
|
|
msg = _("Error in evacuate, %s") % e
|
|
LOG.exception(msg, instance=instance)
|
|
raise exc.HTTPBadRequest(explanation=msg)
|
|
|
|
return {'admin_password': password}
|
|
|
|
|
|
class Evacuate(extensions.V3APIExtensionBase):
|
|
"""Enables server evacuation."""
|
|
|
|
name = "Evacuate"
|
|
alias = ALIAS
|
|
namespace = "http://docs.openstack.org/compute/ext/evacuate/api/v3"
|
|
version = 1
|
|
|
|
def get_resources(self):
|
|
return []
|
|
|
|
def get_controller_extensions(self):
|
|
controller = EvacuateController()
|
|
extension = extensions.ControllerExtension(self, 'servers', controller)
|
|
return [extension]
|