#!/usr/bin/env python # vim: tabstop=4 shiftwidth=4 softtabstop=4 # Copyright 2011 OpenStack LLC. # 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. """ Routines for configuring Glance """ import logging import logging.config import logging.handlers import os import sys from oslo.config import cfg from paste import deploy from glazierapi.version import version_info as version paste_deploy_opts = [ cfg.StrOpt('flavor'), cfg.StrOpt('config_file'), ] bind_opts = [ cfg.StrOpt('bind-host', default='0.0.0.0'), cfg.IntOpt('bind-port', default='8082'), ] reports_opts = [ cfg.StrOpt('results_exchange', default='task-results'), cfg.StrOpt('results_queue', default='task-results'), cfg.StrOpt('reports_exchange', default='task-reports'), cfg.StrOpt('reports_queue', default='task-reports') ] rabbit_opts = [ cfg.StrOpt('host', default='localhost'), cfg.IntOpt('port', default=5672), cfg.BoolOpt('use_ssl', default=False), cfg.StrOpt('login', default='guest'), cfg.StrOpt('password', default='guest'), cfg.StrOpt('virtual_host', default='/'), ] CONF = cfg.CONF CONF.register_opts(paste_deploy_opts, group='paste_deploy') CONF.register_cli_opts(bind_opts) # CONF.register_opts(bind_opts) CONF.register_opts(reports_opts, group='reports') CONF.register_opts(rabbit_opts, group='rabbitmq') CONF.import_opt('verbose', 'glazierapi.openstack.common.log') CONF.import_opt('debug', 'glazierapi.openstack.common.log') CONF.import_opt('log_dir', 'glazierapi.openstack.common.log') CONF.import_opt('log_file', 'glazierapi.openstack.common.log') CONF.import_opt('log_config', 'glazierapi.openstack.common.log') CONF.import_opt('log_format', 'glazierapi.openstack.common.log') CONF.import_opt('log_date_format', 'glazierapi.openstack.common.log') CONF.import_opt('use_syslog', 'glazierapi.openstack.common.log') CONF.import_opt('syslog_log_facility', 'glazierapi.openstack.common.log') def parse_args(args=None, usage=None, default_config_files=None): CONF(args=args, project='glazierapi', version=version.cached_version_string(), usage=usage, default_config_files=default_config_files) def setup_logging(): """ Sets up the logging options for a log with supplied name """ if CONF.log_config: # Use a logging configuration file for all settings... if os.path.exists(CONF.log_config): logging.config.fileConfig(CONF.log_config) return else: raise RuntimeError("Unable to locate specified logging " "config file: %s" % CONF.log_config) root_logger = logging.root if CONF.debug: root_logger.setLevel(logging.DEBUG) elif CONF.verbose: root_logger.setLevel(logging.INFO) else: root_logger.setLevel(logging.WARNING) formatter = logging.Formatter(CONF.log_format, CONF.log_date_format) if CONF.use_syslog: try: facility = getattr(logging.handlers.SysLogHandler, CONF.syslog_log_facility) except AttributeError: raise ValueError(_("Invalid syslog facility")) handler = logging.handlers.SysLogHandler(address='/dev/log', facility=facility) elif CONF.log_file: logfile = CONF.log_file if CONF.log_dir: logfile = os.path.join(CONF.log_dir, logfile) handler = logging.handlers.WatchedFileHandler(logfile) else: handler = logging.StreamHandler(sys.stdout) handler.setFormatter(formatter) root_logger.addHandler(handler) def _get_deployment_flavor(): """ Retrieve the paste_deploy.flavor config item, formatted appropriately for appending to the application name. """ flavor = CONF.paste_deploy.flavor return '' if not flavor else ('-' + flavor) def _get_paste_config_path(): paste_suffix = '-paste.ini' conf_suffix = '.conf' if CONF.config_file: # Assume paste config is in a paste.ini file corresponding # to the last config file path = CONF.config_file[-1].replace(conf_suffix, paste_suffix) else: path = CONF.prog + '-paste.ini' return CONF.find_file(os.path.basename(path)) def _get_deployment_config_file(): """ Retrieve the deployment_config_file config item, formatted as an absolute pathname. """ path = CONF.paste_deploy.config_file if not path: path = _get_paste_config_path() if not path: msg = "Unable to locate paste config file for %s." % CONF.prog raise RuntimeError(msg) return os.path.abspath(path) def load_paste_app(app_name=None): """ Builds and returns a WSGI app from a paste config file. We assume the last config file specified in the supplied ConfigOpts object is the paste config file. :param app_name: name of the application to load :raises RuntimeError when config file cannot be located or application cannot be loaded from config file """ if app_name is None: app_name = CONF.prog # append the deployment flavor to the application name, # in order to identify the appropriate paste pipeline app_name += _get_deployment_flavor() conf_file = _get_deployment_config_file() try: logger = logging.getLogger(__name__) logger.debug(_("Loading %(app_name)s from %(conf_file)s"), {'conf_file': conf_file, 'app_name': app_name}) app = deploy.loadapp("config:%s" % conf_file, name=app_name) # Log the options used when starting if we're in debug mode... if CONF.debug: CONF.log_opt_values(logger, logging.DEBUG) return app except (LookupError, ImportError), e: msg = _("Unable to load %(app_name)s from " "configuration file %(conf_file)s." "\nGot: %(e)r") % locals() logger.error(msg) raise RuntimeError(msg)