86 lines
3.1 KiB
Python
86 lines
3.1 KiB
Python
# Copyright 2013 Rackspace Hosting
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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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from novaclient import api_versions
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from novaclient import base
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from novaclient.i18n import _
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from novaclient import utils
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class EvacuateHostResponse(base.Resource):
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pass
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def _server_evacuate(cs, server, args):
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success = True
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error_message = ""
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try:
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if api_versions.APIVersion("2.29") <= cs.api_version:
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# if microversion >= 2.29
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force = getattr(args, 'force', None)
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cs.servers.evacuate(server=server['uuid'], host=args.target_host,
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force=force)
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elif api_versions.APIVersion("2.14") <= cs.api_version:
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# if microversion 2.14 - 2.28
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cs.servers.evacuate(server=server['uuid'], host=args.target_host)
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else:
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# else microversion 2.0 - 2.13
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on_shared_storage = getattr(args, 'on_shared_storage', None)
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cs.servers.evacuate(server=server['uuid'],
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host=args.target_host,
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on_shared_storage=on_shared_storage)
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except Exception as e:
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success = False
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error_message = _("Error while evacuating instance: %s") % e
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return EvacuateHostResponse(base.Manager,
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{"server_uuid": server['uuid'],
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"evacuate_accepted": success,
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"error_message": error_message})
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@utils.arg('host', metavar='<host>', help='Name of host.')
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@utils.arg(
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'--target_host',
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metavar='<target_host>',
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default=None,
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help=_('Name of target host. If no host is specified the scheduler will '
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'select a target.'))
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@utils.arg(
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'--on-shared-storage',
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dest='on_shared_storage',
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action="store_true",
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default=False,
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help=_('Specifies whether all instances files are on shared storage'),
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start_version='2.0',
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end_version='2.13')
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@utils.arg(
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'--force',
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dest='force',
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action='store_true',
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default=False,
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help=_('Force to not verify the scheduler if a host is provided.'),
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start_version='2.29')
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def do_host_evacuate(cs, args):
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"""Evacuate all instances from failed host."""
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hypervisors = cs.hypervisors.search(args.host, servers=True)
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response = []
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for hyper in hypervisors:
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if hasattr(hyper, 'servers'):
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for server in hyper.servers:
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response.append(_server_evacuate(cs, server, args))
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utils.print_list(response,
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["Server UUID", "Evacuate Accepted", "Error Message"])
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