136 lines
5.3 KiB
Python
136 lines
5.3 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright (c) 2010 OpenStack, LLC.
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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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"""Console Proxy Service."""
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import socket
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from nova.compute import rpcapi as compute_rpcapi
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from nova import exception
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from nova import flags
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from nova import manager
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from nova.openstack.common import cfg
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from nova.openstack.common import importutils
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from nova.openstack.common import log as logging
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from nova import utils
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console_manager_opts = [
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cfg.StrOpt('console_driver',
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default='nova.console.xvp.XVPConsoleProxy',
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help='Driver to use for the console proxy'),
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cfg.BoolOpt('stub_compute',
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default=False,
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help='Stub calls to compute worker for tests'),
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cfg.StrOpt('console_public_hostname',
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default=socket.gethostname(),
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help='Publicly visible name for this console host'),
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]
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FLAGS = flags.FLAGS
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FLAGS.register_opts(console_manager_opts)
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LOG = logging.getLogger(__name__)
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class ConsoleProxyManager(manager.Manager):
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"""Sets up and tears down any console proxy connections.
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Needed for accessing instance consoles securely.
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"""
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RPC_API_VERSION = '1.0'
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def __init__(self, console_driver=None, *args, **kwargs):
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if not console_driver:
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console_driver = FLAGS.console_driver
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self.driver = importutils.import_object(console_driver)
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super(ConsoleProxyManager, self).__init__(*args, **kwargs)
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self.driver.host = self.host
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self.compute_rpcapi = compute_rpcapi.ComputeAPI()
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def init_host(self):
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self.driver.init_host()
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@exception.wrap_exception()
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def add_console(self, context, instance_id, password=None,
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port=None, **kwargs):
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instance = self.db.instance_get(context, instance_id)
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host = instance['host']
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name = instance['name']
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pool = self.get_pool_for_instance_host(context, host)
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try:
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console = self.db.console_get_by_pool_instance(context,
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pool['id'],
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instance['uuid'])
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except exception.NotFound:
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LOG.debug(_('Adding console'), instance=instance)
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if not password:
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password = utils.generate_password(8)
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if not port:
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port = self.driver.get_port(context)
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console_data = {'instance_name': name,
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'instance_uuid': instance['uuid'],
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'password': password,
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'pool_id': pool['id']}
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if port:
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console_data['port'] = port
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console = self.db.console_create(context, console_data)
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self.driver.setup_console(context, console)
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return console['id']
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@exception.wrap_exception()
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def remove_console(self, context, console_id, **_kwargs):
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try:
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console = self.db.console_get(context, console_id)
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except exception.NotFound:
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LOG.debug(_('Tried to remove non-existant console '
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'%(console_id)s.') %
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{'console_id': console_id})
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return
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self.db.console_delete(context, console_id)
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self.driver.teardown_console(context, console)
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def get_pool_for_instance_host(self, context, instance_host):
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context = context.elevated()
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console_type = self.driver.console_type
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try:
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pool = self.db.console_pool_get_by_host_type(context,
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instance_host,
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self.host,
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console_type)
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except exception.NotFound:
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#NOTE(mdragon): Right now, the only place this info exists is the
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# compute worker's flagfile, at least for
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# xenserver. Thus we ned to ask.
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if FLAGS.stub_compute:
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pool_info = {'address': '127.0.0.1',
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'username': 'test',
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'password': '1234pass'}
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else:
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pool_info = compute_rpcapi.get_console_pool_info(context,
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console_type, instance_host)
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pool_info['password'] = self.driver.fix_pool_password(
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pool_info['password'])
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pool_info['host'] = self.host
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pool_info['public_hostname'] = FLAGS.console_public_hostname
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pool_info['console_type'] = self.driver.console_type
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pool_info['compute_host'] = instance_host
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pool = self.db.console_pool_create(context, pool_info)
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return pool
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