118 lines
3.5 KiB
Python
118 lines
3.5 KiB
Python
# Copyright 2016 Red Hat, Inc.
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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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import os
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import sys
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from novajoin import config
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from novajoin import exception
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from novajoin import keystone_client
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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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CONF = config.CONF
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LOG = log.getLogger(__name__)
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class WSGIService(service.ServiceBase):
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"""Provides ability to launch API from a 'paste' configuration."""
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def __init__(self, name, loader=None):
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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 loader: Loads the WSGI application using the given name.
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:returns: None
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"""
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self.name = name
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self.loader = loader or wsgi.Loader(CONF)
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self.app = self.loader.load_app(name)
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self.host = getattr(CONF, '%s_listen' % name, "0.0.0.0")
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self.port = getattr(CONF, '%s_listen_port' % name, 0)
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self.workers = (getattr(CONF, '%s_workers' % name, None) or
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processutils.get_worker_count())
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if self.workers and self.workers < 1:
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worker_name = '%s_workers' % name
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msg = ("%(worker_name)s value of %(workers)d is invalid, "
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"must be greater than 0." %
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{'worker_name': worker_name,
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'workers': self.workers})
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raise exception.InvalidInput(msg)
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self.server = wsgi.Server(CONF,
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name,
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self.app,
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host=self.host,
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port=self.port)
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def start(self):
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"""Start serving this service using loaded configuration.
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Also, retrieve updated port number in case '0' was passed in, which
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indicates a random port should be used.
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:returns: None
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"""
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self.server.start()
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self.port = self.server.port
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LOG.info("Starting on port %d" % self.port)
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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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def process_launcher():
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return service.ProcessLauncher(CONF)
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def main():
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# rcrit: work around "PKCS #11 module returned CKR_DEVICE_ERROR"
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os.environ['NSS_STRICT_NOFORK'] = 'DISABLED'
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keystone_client.register_keystoneauth_opts(CONF)
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CONF(sys.argv[1:], version='1.0.21',
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default_config_files=config.find_config_files())
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log.setup(CONF, 'join')
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launcher = process_launcher()
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server = WSGIService('join')
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launcher.launch_service(server, workers=server.workers)
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launcher.wait()
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