80 lines
2.6 KiB
Python
80 lines
2.6 KiB
Python
# Copyright 2013 Red Hat, Inc.
|
|
#
|
|
# 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.
|
|
|
|
"""
|
|
Client side of the console RPC API.
|
|
"""
|
|
|
|
from oslo_config import cfg
|
|
import oslo_messaging as messaging
|
|
|
|
from nova import rpc
|
|
|
|
rpcapi_opts = [
|
|
cfg.StrOpt('console_topic',
|
|
default='console',
|
|
help='The topic console proxy nodes listen on'),
|
|
]
|
|
|
|
CONF = cfg.CONF
|
|
CONF.register_opts(rpcapi_opts)
|
|
|
|
rpcapi_cap_opt = cfg.StrOpt('console',
|
|
help='Set a version cap for messages sent to console services')
|
|
CONF.register_opt(rpcapi_cap_opt, 'upgrade_levels')
|
|
|
|
|
|
class ConsoleAPI(object):
|
|
'''Client side of the console rpc API.
|
|
|
|
API version history:
|
|
|
|
1.0 - Initial version.
|
|
1.1 - Added get_backdoor_port()
|
|
|
|
... Grizzly and Havana support message version 1.1. So, any changes to
|
|
existing methods in 1.x after that point should be done such that they
|
|
can handle the version_cap being set to 1.1.
|
|
|
|
2.0 - Major API rev for Icehouse
|
|
|
|
... Icehouse, Juno and Kilo support message version 2.0. So, any
|
|
changes to existing methods in 2.x after that point should be done such
|
|
that they can handle the version_cap being set to 2.0.
|
|
'''
|
|
|
|
VERSION_ALIASES = {
|
|
'grizzly': '1.1',
|
|
'havana': '1.1',
|
|
'icehouse': '2.0',
|
|
'juno': '2.0',
|
|
'kilo': '2.0',
|
|
}
|
|
|
|
def __init__(self, topic=None, server=None):
|
|
super(ConsoleAPI, self).__init__()
|
|
topic = topic if topic else CONF.console_topic
|
|
target = messaging.Target(topic=topic, server=server, version='2.0')
|
|
version_cap = self.VERSION_ALIASES.get(CONF.upgrade_levels.console,
|
|
CONF.upgrade_levels.console)
|
|
self.client = rpc.get_client(target, version_cap=version_cap)
|
|
|
|
def add_console(self, ctxt, instance_id):
|
|
cctxt = self.client.prepare()
|
|
cctxt.cast(ctxt, 'add_console', instance_id=instance_id)
|
|
|
|
def remove_console(self, ctxt, console_id):
|
|
cctxt = self.client.prepare()
|
|
cctxt.cast(ctxt, 'remove_console', console_id=console_id)
|