neutron/neutron/common/profiler.py

50 lines
1.9 KiB
Python

# 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.
from neutron_lib import context
from oslo_config import cfg
from oslo_log import log as logging
import osprofiler.initializer
from osprofiler import opts as profiler_opts
import osprofiler.web
CONF = cfg.CONF
profiler_opts.set_defaults(CONF)
LOG = logging.getLogger(__name__)
def setup(name, host='0.0.0.0'): # nosec
"""Setup OSprofiler notifier and enable profiling.
:param name: name of the service, that will be profiled
:param host: host (either host name or host address) the service will be
running on. By default host will be set to 0.0.0.0, but more
specified host name / address usage is highly recommended.
"""
if CONF.profiler.enabled:
osprofiler.initializer.init_from_conf(
conf=CONF,
context=context.get_admin_context().to_dict(),
project="neutron",
service=name,
host=host
)
LOG.info("OSProfiler is enabled.\n"
"Traces provided from the profiler "
"can only be subscribed to using the same HMAC keys that "
"are configured in Neutron's configuration file "
"under the [profiler] section.\n To disable OSprofiler "
"set in /etc/neutron/neutron.conf:\n"
"[profiler]\n"
"enabled=false")