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# Copyright 2011 OpenStack Foundation
# All Rights Reserved.
#
# 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.
"""
host interface (1.1 extension).
"""
from novaclient import base
class Host(base.Resource):
def __repr__(self):
return "<Host: %s>" % self.host
def _add_details(self, info):
dico = 'resource' in info and info['resource'] or info
for (k, v) in dico.items():
setattr(self, k, v)
def update(self, values):
return self.manager.update(self.host, values)
def startup(self):
return self.manager.host_action(self.host, 'startup')
def shutdown(self):
return self.manager.host_action(self.host, 'shutdown')
def reboot(self):
return self.manager.host_action(self.host, 'reboot')
@property
def host_name(self):
return self.host
@host_name.setter
def host_name(self, value):
# A host from hosts.list() has the attribute "host_name" instead of
# "host." This sets "host" if that's the case. Even though it doesn't
# exactly mirror the response format, it enables users to work with
# host objects from list and non-list operations interchangeably.
self.host = value
class HostManager(base.ManagerWithFind):
resource_class = Host
def get(self, host):
"""
Describes cpu/memory/hdd info for host.
:param host: destination host name.
"""
return self._list("/os-hosts/%s" % host, "host")
def update(self, host, values):
"""Update status or maintenance mode for the host."""
return self._update("/os-hosts/%s" % host, values)
def host_action(self, host, action):
"""
Perform an action on a host.
:param host: The host to perform an action
:param action: The action to perform
returns: An instance of novaclient.base.TupleWithMeta
"""
url = '/os-hosts/{0}/{1}'.format(host, action)
resp, body = self.api.client.get(url)
return base.TupleWithMeta((resp, body), resp)
def list(self, zone=None):
url = '/os-hosts'
if zone:
url = '/os-hosts?zone=%s' % zone
return self._list(url, "hosts")
list_all = list
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