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Member "monasca-log-api-2.9.0/monasca_log_api/config.py" (1 Apr 2019, 2644 Bytes) of package /linux/misc/openstack/monasca-log-api-2.9.0.tar.gz:

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    1 # Copyright 2017 FUJITSU LIMITED
    2 #
    3 # Licensed under the Apache License, Version 2.0 (the "License"); you may
    4 # not use this file except in compliance with the License. You may obtain
    5 # a copy of the License at
    6 #
    7 #      http://www.apache.org/licenses/LICENSE-2.0
    8 #
    9 # Unless required by applicable law or agreed to in writing, software
   10 # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
   11 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
   12 # License for the specific language governing permissions and limitations
   13 # under the License.
   14 
   15 import sys
   16 
   17 from oslo_config import cfg
   18 from oslo_log import log
   19 from oslo_policy import opts as policy_opts
   20 
   21 from monasca_log_api import conf
   22 from monasca_log_api import version
   23 
   24 CONF = conf.CONF
   25 LOG = log.getLogger(__name__)
   26 
   27 _CONF_LOADED = False
   28 _GUNICORN_MARKER = 'gunicorn'
   29 
   30 
   31 def _is_running_under_gunicorn():
   32     """Evaluates if api runs under gunicorn"""
   33     content = filter(lambda x: x != sys.executable and _GUNICORN_MARKER in x,
   34                      sys.argv or [])
   35     return len(list(content) if not isinstance(content, list) else content) > 0
   36 
   37 
   38 def get_config_files():
   39     """Get the possible configuration files accepted by oslo.config
   40 
   41     This also includes the deprecated ones
   42     """
   43     # default files
   44     conf_files = cfg.find_config_files(project='monasca',
   45                                        prog='monasca-log-api')
   46     # deprecated config files (only used if standard config files are not there)
   47     if len(conf_files) == 0:
   48         old_conf_files = cfg.find_config_files(project='monasca',
   49                                                prog='log-api')
   50         if len(old_conf_files) > 0:
   51             LOG.warning('Found deprecated old location "{}" '
   52                         'of main configuration file'.format(old_conf_files))
   53             conf_files += old_conf_files
   54     return conf_files
   55 
   56 
   57 def parse_args(argv=None):
   58     global _CONF_LOADED
   59     if _CONF_LOADED:
   60         LOG.debug('Configuration has been already loaded')
   61         return
   62 
   63     log.set_defaults()
   64     log.register_options(CONF)
   65 
   66     argv = (argv if argv is not None else sys.argv[1:])
   67     args = ([] if _is_running_under_gunicorn() else argv or [])
   68 
   69     CONF(args=args,
   70          prog=sys.argv[1:],
   71          project='monasca',
   72          version=version.version_str,
   73          default_config_files=get_config_files(),
   74          description='RESTful API to collect log files')
   75 
   76     log.setup(CONF,
   77               product_name='monasca-log-api',
   78               version=version.version_str)
   79 
   80     conf.register_opts()
   81     policy_opts.set_defaults(CONF)
   82 
   83     _CONF_LOADED = True