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# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright (c) 2010 OpenStack, LLC.
# 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.
"""Console Proxy Service."""
import socket
from oslo.config import cfg
from nova.compute import rpcapi as compute_rpcapi
from nova import exception
from nova import manager
from nova.openstack.common import importutils
from nova.openstack.common import log as logging
from nova import utils
console_manager_opts = [
cfg.StrOpt('console_driver',
default='nova.console.xvp.XVPConsoleProxy',
help='Driver to use for the console proxy'),
cfg.BoolOpt('stub_compute',
default=False,
help='Stub calls to compute worker for tests'),
cfg.StrOpt('console_public_hostname',
default=socket.getfqdn(),
help='Publicly visible name for this console host'),
]
CONF = cfg.CONF
CONF.register_opts(console_manager_opts)
LOG = logging.getLogger(__name__)
class ConsoleProxyManager(manager.Manager):
"""Sets up and tears down any console proxy connections.
Needed for accessing instance consoles securely.
"""
RPC_API_VERSION = '1.1'
def __init__(self, console_driver=None, *args, **kwargs):
if not console_driver:
console_driver = CONF.console_driver
self.driver = importutils.import_object(console_driver)
super(ConsoleProxyManager, self).__init__(*args, **kwargs)
self.driver.host = self.host
self.compute_rpcapi = compute_rpcapi.ComputeAPI()
def init_host(self):
self.driver.init_host()
def add_console(self, context, instance_id, password=None,
port=None, **kwargs):
instance = self.db.instance_get(context, instance_id)
host = instance['host']
name = instance['name']
pool = self.get_pool_for_instance_host(context, host)
try:
console = self.db.console_get_by_pool_instance(context,
pool['id'],
instance['uuid'])
except exception.NotFound:
LOG.debug(_('Adding console'), instance=instance)
if not password:
password = utils.generate_password(8)
if not port:
port = self.driver.get_port(context)
console_data = {'instance_name': name,
'instance_uuid': instance['uuid'],
'password': password,
'pool_id': pool['id']}
if port:
console_data['port'] = port
console = self.db.console_create(context, console_data)
self.driver.setup_console(context, console)
return console['id']
def remove_console(self, context, console_id, **_kwargs):
try:
console = self.db.console_get(context, console_id)
except exception.NotFound:
LOG.debug(_('Tried to remove non-existent console '
'%(console_id)s.') %
{'console_id': console_id})
return
self.db.console_delete(context, console_id)
self.driver.teardown_console(context, console)
def get_pool_for_instance_host(self, context, instance_host):
context = context.elevated()
console_type = self.driver.console_type
try:
pool = self.db.console_pool_get_by_host_type(context,
instance_host,
self.host,
console_type)
except exception.NotFound:
#NOTE(mdragon): Right now, the only place this info exists is the
# compute worker's flagfile, at least for
# xenserver. Thus we ned to ask.
if CONF.stub_compute:
pool_info = {'address': '127.0.0.1',
'username': 'test',
'password': '1234pass'}
else:
pool_info = self.compute_rpcapi.get_console_pool_info(context,
console_type, instance_host)
pool_info['password'] = self.driver.fix_pool_password(
pool_info['password'])
pool_info['host'] = self.host
pool_info['public_hostname'] = CONF.console_public_hostname
pool_info['console_type'] = self.driver.console_type
pool_info['compute_host'] = instance_host
pool = self.db.console_pool_create(context, pool_info)
return pool
def get_backdoor_port(self, context):
return self.backdoor_port
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