214 lines
6.8 KiB
Python
214 lines
6.8 KiB
Python
#!/usr/bin/env python
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2011 OpenStack LLC.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""
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Routines for configuring Glance
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"""
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import logging
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import logging.config
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import logging.handlers
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import os
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import sys
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from oslo.config import cfg
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from paste import deploy
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from conductor.version import version_info as version
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from ConfigParser import SafeConfigParser
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paste_deploy_opts = [
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cfg.StrOpt('flavor'),
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cfg.StrOpt('config_file'),
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]
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rabbit_opts = [
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cfg.StrOpt('host', default='localhost'),
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cfg.IntOpt('port', default=5672),
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cfg.StrOpt('login', default='guest'),
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cfg.StrOpt('password', default='guest'),
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cfg.StrOpt('virtual_host', default='/'),
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]
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heat_opts = [
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cfg.StrOpt('auth_url'),
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]
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CONF = cfg.CONF
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CONF.register_opts(paste_deploy_opts, group='paste_deploy')
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CONF.register_opts(rabbit_opts, group='rabbitmq')
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CONF.register_opts(heat_opts, group='heat')
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CONF.import_opt('verbose', 'conductor.openstack.common.log')
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CONF.import_opt('debug', 'conductor.openstack.common.log')
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CONF.import_opt('log_dir', 'conductor.openstack.common.log')
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CONF.import_opt('log_file', 'conductor.openstack.common.log')
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CONF.import_opt('log_config', 'conductor.openstack.common.log')
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CONF.import_opt('log_format', 'conductor.openstack.common.log')
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CONF.import_opt('log_date_format', 'conductor.openstack.common.log')
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CONF.import_opt('use_syslog', 'conductor.openstack.common.log')
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CONF.import_opt('syslog_log_facility', 'conductor.openstack.common.log')
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def parse_args(args=None, usage=None, default_config_files=None):
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CONF(args=args,
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project='conductor',
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version=version.cached_version_string(),
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usage=usage,
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default_config_files=default_config_files)
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def setup_logging():
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"""
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Sets up the logging options for a log with supplied name
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"""
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if CONF.log_config:
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# Use a logging configuration file for all settings...
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if os.path.exists(CONF.log_config):
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logging.config.fileConfig(CONF.log_config)
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return
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else:
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raise RuntimeError("Unable to locate specified logging "
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"config file: %s" % CONF.log_config)
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root_logger = logging.root
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if CONF.debug:
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root_logger.setLevel(logging.DEBUG)
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elif CONF.verbose:
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root_logger.setLevel(logging.INFO)
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else:
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root_logger.setLevel(logging.WARNING)
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formatter = logging.Formatter(CONF.log_format, CONF.log_date_format)
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if CONF.use_syslog:
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try:
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facility = getattr(logging.handlers.SysLogHandler,
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CONF.syslog_log_facility)
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except AttributeError:
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raise ValueError(_("Invalid syslog facility"))
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handler = logging.handlers.SysLogHandler(address='/dev/log',
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facility=facility)
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elif CONF.log_file:
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logfile = CONF.log_file
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if CONF.log_dir:
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logfile = os.path.join(CONF.log_dir, logfile)
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handler = logging.handlers.WatchedFileHandler(logfile)
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else:
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handler = logging.StreamHandler(sys.stdout)
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handler.setFormatter(formatter)
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root_logger.addHandler(handler)
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def _get_deployment_flavor():
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"""
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Retrieve the paste_deploy.flavor config item, formatted appropriately
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for appending to the application name.
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"""
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flavor = CONF.paste_deploy.flavor
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return '' if not flavor else ('-' + flavor)
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def _get_paste_config_path():
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paste_suffix = '-paste.ini'
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conf_suffix = '.conf'
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if CONF.config_file:
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# Assume paste config is in a paste.ini file corresponding
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# to the last config file
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path = CONF.config_file[-1].replace(conf_suffix, paste_suffix)
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else:
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path = CONF.prog + '-paste.ini'
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return CONF.find_file(os.path.basename(path))
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def _get_deployment_config_file():
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"""
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Retrieve the deployment_config_file config item, formatted as an
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absolute pathname.
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"""
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path = CONF.paste_deploy.config_file
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if not path:
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path = _get_paste_config_path()
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if not path:
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msg = "Unable to locate paste config file for %s." % CONF.prog
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raise RuntimeError(msg)
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return os.path.abspath(path)
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def load_paste_app(app_name=None):
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"""
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Builds and returns a WSGI app from a paste config file.
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We assume the last config file specified in the supplied ConfigOpts
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object is the paste config file.
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:param app_name: name of the application to load
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:raises RuntimeError when config file cannot be located or application
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cannot be loaded from config file
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"""
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if app_name is None:
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app_name = CONF.prog
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# append the deployment flavor to the application name,
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# in order to identify the appropriate paste pipeline
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app_name += _get_deployment_flavor()
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conf_file = _get_deployment_config_file()
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try:
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logger = logging.getLogger(__name__)
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logger.debug(_("Loading %(app_name)s from %(conf_file)s"),
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{'conf_file': conf_file, 'app_name': app_name})
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app = deploy.loadapp("config:%s" % conf_file, name=app_name)
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# Log the options used when starting if we're in debug mode...
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if CONF.debug:
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CONF.log_opt_values(logger, logging.DEBUG)
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return app
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except (LookupError, ImportError), e:
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msg = _("Unable to load %(app_name)s from "
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"configuration file %(conf_file)s."
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"\nGot: %(e)r") % locals()
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logger.error(msg)
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raise RuntimeError(msg)
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class Config(object):
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CONFIG_PATH = './etc/app.config'
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def __init__(self, filename=None):
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self.config = SafeConfigParser()
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self.config.read(filename or self.CONFIG_PATH)
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def get_setting(self, section, name, default=None):
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if not self.config.has_option(section, name):
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return default
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return self.config.get(section, name)
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def __getitem__(self, item):
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parts = item.rsplit('.', 1)
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return self.get_setting(
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parts[0] if len(parts) == 2 else 'DEFAULT', parts[-1])
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