magnum/magnum/api/app.py

76 lines
2.0 KiB
Python
Executable File

# 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 os
import sys
from oslo_config import cfg
from oslo_log import log
from paste import deploy
import pecan
from magnum.api import config as api_config
from magnum.api import middleware
from magnum.common import config as common_config
from magnum.common import service
import magnum.conf
CONF = magnum.conf.CONF
LOG = log.getLogger(__name__)
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(config=None):
if not config:
config = get_pecan_config()
app_conf = dict(config.app)
common_config.set_config_defaults()
app = pecan.make_app(
app_conf.pop('root'),
logging=getattr(config, 'logging', {}),
wrap_app=middleware.ParsableErrorMiddleware,
guess_content_type_from_ext=False,
**app_conf
)
return app
def load_app():
cfg_file = None
cfg_path = CONF.api.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([CONF.api.api_paste_config])
LOG.info("Full WSGI config used: %s", cfg_file)
return deploy.loadapp("config:" + cfg_file)
def app_factory(global_config, **local_conf):
return setup_app()
def build_wsgi_app(argv=None):
service.prepare_service(sys.argv)
return load_app()