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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.
"""Utilities and helper functions."""
import threading
from oslo_config import cfg
from oslo_utils import timeutils
ROOTWRAP_CONF = "/etc/ceilometer/rootwrap.conf"
OPTS = [
cfg.StrOpt('rootwrap_config',
default=ROOTWRAP_CONF,
help='Path to the rootwrap configuration file to '
'use for running commands as root'),
]
def _get_root_helper():
global ROOTWRAP_CONF
return 'sudo ceilometer-rootwrap %s' % ROOTWRAP_CONF
def setup_root_helper(conf):
global ROOTWRAP_CONF
ROOTWRAP_CONF = conf.rootwrap_config
def spawn_thread(target, *args, **kwargs):
t = threading.Thread(target=target, args=args, kwargs=kwargs)
t.daemon = True
t.start()
return t
def isotime(at=None):
"""Current time as ISO string,
:returns: Current time in ISO format
"""
if not at:
at = timeutils.utcnow()
date_string = at.strftime("%Y-%m-%dT%H:%M:%S")
tz = at.tzinfo.tzname(None) if at.tzinfo else 'UTC'
date_string += ('Z' if tz == 'UTC' else tz)
return date_string
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