1c546b10b8
this patch makes existing limit options in meter and samples apis mandatory. if not set explicitly, a default limit will be applied. DocImpact ApiImpact Change-Id: Ie354e8e64a6f8677a0be7e75c34e8901cdffbc6a Implements: blueprint mandatory-limit
154 lines
4.6 KiB
Python
154 lines
4.6 KiB
Python
#
|
|
# Copyright 2012 New Dream Network, LLC (DreamHost)
|
|
#
|
|
# 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.
|
|
|
|
import logging
|
|
import os
|
|
|
|
from oslo_config import cfg
|
|
from oslo_log import log
|
|
from paste import deploy
|
|
import pecan
|
|
from werkzeug import serving
|
|
|
|
from ceilometer.api import config as api_config
|
|
from ceilometer.api import hooks
|
|
from ceilometer.api import middleware
|
|
from ceilometer.i18n import _
|
|
from ceilometer.i18n import _LW
|
|
from ceilometer import service
|
|
|
|
LOG = log.getLogger(__name__)
|
|
|
|
CONF = cfg.CONF
|
|
|
|
OPTS = [
|
|
cfg.StrOpt('api_paste_config',
|
|
default="api_paste.ini",
|
|
help="Configuration file for WSGI definition of API."
|
|
),
|
|
cfg.IntOpt('api_workers', default=1,
|
|
help='Number of workers for Ceilometer API server.'),
|
|
]
|
|
|
|
API_OPTS = [
|
|
cfg.BoolOpt('pecan_debug',
|
|
default=False,
|
|
help='Toggle Pecan Debug Middleware.'),
|
|
cfg.IntOpt('default_api_return_limit',
|
|
default=1000,
|
|
help='Default maximum number of items returned by API request.'
|
|
),
|
|
]
|
|
|
|
CONF.register_opts(OPTS)
|
|
CONF.register_opts(API_OPTS, group='api')
|
|
|
|
|
|
def get_pecan_config():
|
|
# Set up the pecan configuration
|
|
filename = api_config.__file__.replace('.pyc', '.py')
|
|
return pecan.configuration.conf_from_file(filename)
|
|
|
|
|
|
def setup_app(pecan_config=None, extra_hooks=None):
|
|
# FIXME: Replace DBHook with a hooks.TransactionHook
|
|
app_hooks = [hooks.ConfigHook(),
|
|
hooks.DBHook(),
|
|
hooks.NotifierHook(),
|
|
hooks.TranslationHook()]
|
|
if extra_hooks:
|
|
app_hooks.extend(extra_hooks)
|
|
|
|
if not pecan_config:
|
|
pecan_config = get_pecan_config()
|
|
|
|
pecan.configuration.set_config(dict(pecan_config), overwrite=True)
|
|
|
|
# NOTE(sileht): pecan debug won't work in multi-process environment
|
|
pecan_debug = CONF.api.pecan_debug
|
|
if service.get_workers('api') != 1 and pecan_debug:
|
|
pecan_debug = False
|
|
LOG.warning(_LW('pecan_debug cannot be enabled, if workers is > 1, '
|
|
'the value is overrided with False'))
|
|
|
|
app = pecan.make_app(
|
|
pecan_config.app.root,
|
|
debug=pecan_debug,
|
|
force_canonical=getattr(pecan_config.app, 'force_canonical', True),
|
|
hooks=app_hooks,
|
|
wrap_app=middleware.ParsableErrorMiddleware,
|
|
guess_content_type_from_ext=False
|
|
)
|
|
|
|
return app
|
|
|
|
|
|
class VersionSelectorApplication(object):
|
|
def __init__(self):
|
|
pc = get_pecan_config()
|
|
|
|
def not_found(environ, start_response):
|
|
start_response('404 Not Found', [])
|
|
return []
|
|
|
|
self.v1 = not_found
|
|
self.v2 = setup_app(pecan_config=pc)
|
|
|
|
def __call__(self, environ, start_response):
|
|
if environ['PATH_INFO'].startswith('/v1/'):
|
|
return self.v1(environ, start_response)
|
|
return self.v2(environ, start_response)
|
|
|
|
|
|
def load_app():
|
|
# Build the WSGI app
|
|
cfg_file = None
|
|
cfg_path = cfg.CONF.api_paste_config
|
|
if not os.path.isabs(cfg_path):
|
|
cfg_file = CONF.find_file(cfg_path)
|
|
elif os.path.exists(cfg_path):
|
|
cfg_file = cfg_path
|
|
|
|
if not cfg_file:
|
|
raise cfg.ConfigFilesNotFoundError([cfg.CONF.api_paste_config])
|
|
LOG.info("Full WSGI config used: %s" % cfg_file)
|
|
return deploy.loadapp("config:" + cfg_file)
|
|
|
|
|
|
def build_server():
|
|
app = load_app()
|
|
# Create the WSGI server and start it
|
|
host, port = cfg.CONF.api.host, cfg.CONF.api.port
|
|
|
|
LOG.info(_('Starting server in PID %s') % os.getpid())
|
|
LOG.info(_("Configuration:"))
|
|
cfg.CONF.log_opt_values(LOG, logging.INFO)
|
|
|
|
if host == '0.0.0.0':
|
|
LOG.info(_(
|
|
'serving on 0.0.0.0:%(sport)s, view at http://127.0.0.1:%(vport)s')
|
|
% ({'sport': port, 'vport': port}))
|
|
else:
|
|
LOG.info(_("serving on http://%(host)s:%(port)s") % (
|
|
{'host': host, 'port': port}))
|
|
|
|
workers = service.get_workers('api')
|
|
serving.run_simple(cfg.CONF.api.host, cfg.CONF.api.port,
|
|
app, processes=workers)
|
|
|
|
|
|
def app_factory(global_config, **local_conf):
|
|
return VersionSelectorApplication()
|