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# Copyright 2010 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# Copyright 2011 Justin Santa Barbara
# 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.
# NOTE(markmc): this is imported before monkey patching in nova.cmd
# so we avoid extra imports here
import sys
def enabled():
return ('--remote_debug-host' in sys.argv and
'--remote_debug-port' in sys.argv)
def register_cli_opts():
from oslo_config import cfg
cli_opts = [
cfg.StrOpt('host',
help='Debug host (IP or name) to connect. Note '
'that using the remote debug option changes how '
'Nova uses the eventlet library to support async IO. '
'This could result in failures that do not occur '
'under normal operation. Use at your own risk.'),
cfg.IntOpt('port',
min=1,
max=65535,
help='Debug port to connect. Note '
'that using the remote debug option changes how '
'Nova uses the eventlet library to support async IO. '
'This could result in failures that do not occur '
'under normal operation. Use at your own risk.')
]
cfg.CONF.register_cli_opts(cli_opts, 'remote_debug')
def init():
from oslo_config import cfg
CONF = cfg.CONF
# NOTE(markmc): gracefully handle the CLI options not being registered
if 'remote_debug' not in CONF:
return
if not (CONF.remote_debug.host and CONF.remote_debug.port):
return
import logging
from nova.i18n import _LW
LOG = logging.getLogger(__name__)
LOG.debug('Listening on %(host)s:%(port)s for debug connection',
{'host': CONF.remote_debug.host,
'port': CONF.remote_debug.port})
try:
from pydev import pydevd
except ImportError:
import pydevd
pydevd.settrace(host=CONF.remote_debug.host,
port=CONF.remote_debug.port,
stdoutToServer=False,
stderrToServer=False)
LOG.warning(_LW('WARNING: Using the remote debug option changes how '
'Nova uses the eventlet library to support async IO. This '
'could result in failures that do not occur under normal '
'operation. Use at your own risk.'))
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