94 lines
2.8 KiB
Python
94 lines
2.8 KiB
Python
# 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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from oslo_concurrency import processutils
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from oslo_log import log
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from oslo_service import service
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from oslo_service import wsgi
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from gyan.api import app
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from gyan.common import config
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from gyan.common import exception
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from gyan.common.i18n import _
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import gyan.conf
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CONF = gyan.conf.CONF
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def prepare_service(argv=None):
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if argv is None:
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argv = ['/usr/local/bin/gyan-api', '--config-file', '/etc/gyan/gyan.conf']
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argv = ['/usr/local/bin/gyan-api', '--config-file', '/etc/gyan/gyan.conf']
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log.register_options(CONF)
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config.parse_args(argv)
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config.set_config_defaults()
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log.setup(CONF, 'gyan')
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# TODO(yuanying): Uncomment after objects are implemented
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# objects.register_all()
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def process_launcher():
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return service.ProcessLauncher(CONF, restart_method='mutate')
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class WSGIService(service.ServiceBase):
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"""Provides ability to launch Gyan API from wsgi app."""
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def __init__(self, name, use_ssl=False):
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"""Initialize, but do not start the WSGI server.
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:param name: The name of the WSGI server given to the loader.
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:param use_ssl: Wraps the socket in an SSL context if True.
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:returns: None
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"""
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self.name = name
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self.app = app.load_app()
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self.workers = (CONF.api.workers or processutils.get_worker_count())
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if self.workers and self.workers < 1:
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raise exception.ConfigInvalid(
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_("api_workers value of %d is invalid, "
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"must be greater than 0.") % self.workers)
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self.server = wsgi.Server(CONF, name, self.app,
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host=CONF.api.host_ip,
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port=CONF.api.port,
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use_ssl=use_ssl)
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def start(self):
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"""Start serving this service using loaded configuration.
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:returns: None
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"""
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self.server.start()
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def stop(self):
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"""Stop serving this API.
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:returns: None
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"""
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self.server.stop()
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def wait(self):
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"""Wait for the service to stop serving this API.
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:returns: None
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"""
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self.server.wait()
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def reset(self):
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"""Reset server greenpool size to default.
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:returns: None
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"""
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self.server.reset()
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