159 lines
5.5 KiB
Python
159 lines
5.5 KiB
Python
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# Copyright 2013 OpenStack Foundation
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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 logging
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import os
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import socket
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from oslo_concurrency import processutils
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from oslo_config import cfg
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import oslo_i18n
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from oslo_service import service
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from oslo_service import systemd
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import pbr.version
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# NOTE(dstanek): i18n.enable_lazy() must be called before
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# keystone.i18n._() is called to ensure it has the desired lazy lookup
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# behavior. This includes cases, like keystone.exceptions, where
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# keystone.i18n._() is called at import time.
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oslo_i18n.enable_lazy()
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from keystone.common import config
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from keystone.common import environment
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from keystone.common import profiler
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from keystone.common import utils
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from keystone.i18n import _
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from keystone.server import common
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from keystone.version import service as keystone_service
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CONF = cfg.CONF
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class ServerWrapper(object):
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"""Wrap a Server with some launching info & capabilities."""
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def __init__(self, server, workers):
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self.server = server
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self.workers = workers
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def launch_with(self, launcher):
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self.server.listen()
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if self.workers > 1:
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# Use multi-process launcher
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launcher.launch_service(self.server, self.workers)
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else:
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# Use single process launcher
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launcher.launch_service(self.server)
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def create_server(conf, name, host, port, workers):
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app = keystone_service.loadapp('config:%s' % conf, name)
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server = environment.Server(app, host=host, port=port,
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keepalive=CONF.eventlet_server.tcp_keepalive,
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keepidle=CONF.eventlet_server.tcp_keepidle)
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profiler.setup(name, host)
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if CONF.eventlet_server_ssl.enable:
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server.set_ssl(CONF.eventlet_server_ssl.certfile,
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CONF.eventlet_server_ssl.keyfile,
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CONF.eventlet_server_ssl.ca_certs,
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CONF.eventlet_server_ssl.cert_required)
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return name, ServerWrapper(server, workers)
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def serve(*servers):
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logging.warning(_('Running keystone via eventlet is deprecated as of Kilo '
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'in favor of running in a WSGI server (e.g. mod_wsgi). '
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'Support for keystone under eventlet will be removed in '
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'the "M"-Release.'))
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if max([server[1].workers for server in servers]) > 1:
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launcher = service.ProcessLauncher(CONF)
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else:
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launcher = service.ServiceLauncher(CONF)
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for name, server in servers:
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try:
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server.launch_with(launcher)
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except socket.error:
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logging.exception(_('Failed to start the %(name)s server') % {
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'name': name})
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raise
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# notify calling process we are ready to serve
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systemd.notify_once()
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for name, server in servers:
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launcher.wait()
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def _get_workers(worker_type_config_opt):
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# Get the value from config, if the config value is None (not set), return
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# the number of cpus with a minimum of 2.
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worker_count = CONF.eventlet_server.get(worker_type_config_opt)
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if not worker_count:
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worker_count = max(2, processutils.get_worker_count())
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return worker_count
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def configure_threading():
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monkeypatch_thread = not CONF.standard_threads
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pydev_debug_url = utils.setup_remote_pydev_debug()
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if pydev_debug_url:
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# in order to work around errors caused by monkey patching we have to
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# set the thread to False. An explanation is here:
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# http://lists.openstack.org/pipermail/openstack-dev/2012-August/
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# 000794.html
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monkeypatch_thread = False
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environment.use_eventlet(monkeypatch_thread)
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def run(possible_topdir):
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dev_conf = os.path.join(possible_topdir,
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'etc',
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'keystone.conf')
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config_files = None
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if os.path.exists(dev_conf):
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config_files = [dev_conf]
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common.configure(
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version=pbr.version.VersionInfo('keystone').version_string(),
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config_files=config_files,
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pre_setup_logging_fn=configure_threading)
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paste_config = config.find_paste_config()
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def create_servers():
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admin_worker_count = _get_workers('admin_workers')
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public_worker_count = _get_workers('public_workers')
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servers = []
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servers.append(create_server(paste_config,
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'admin',
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CONF.eventlet_server.admin_bind_host,
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CONF.eventlet_server.admin_port,
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admin_worker_count))
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servers.append(create_server(paste_config,
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'main',
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CONF.eventlet_server.public_bind_host,
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CONF.eventlet_server.public_port,
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public_worker_count))
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return servers
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_unused, servers = common.setup_backends(
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startup_application_fn=create_servers)
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serve(*servers)
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