afcf213cb5
This commit adds the framework to support async execution of functions. Will be used in syncing pooled resources while podmanager creation. Also, this adds periodic task support which is used to periodically sync pooled resources after particular interval. Partially-Implements blueprint add-device-orchestration Change-Id: I48f2358e4a7662898796c82d6a47aa6d947495e5
85 lines
2.4 KiB
Python
Executable File
85 lines
2.4 KiB
Python
Executable File
#!/usr/bin/env python
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# copyright (c) 2016 Intel, Inc.
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#
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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 eventlet
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eventlet.monkey_patch(os=False)
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import gunicorn.app.base
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from valence.api.route import app as application
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from valence.common import async
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import valence.conf
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from valence.controller import pooled_devices
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CONF = valence.conf.CONF
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LOG = logging.getLogger(__name__)
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class StandaloneApplication(gunicorn.app.base.BaseApplication):
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def __init__(self, app, options=None):
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self.options = options or {}
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self.application = app
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super(StandaloneApplication, self).__init__()
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def load_config(self):
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config = dict([(key, value) for key, value in self.options.items()
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if key in self.cfg.settings and value is not None])
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for key, value in config.items():
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self.cfg.set(key.lower(), value)
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def load(self):
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return self.application
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def start_periodic_tasks(server):
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"""Starts asynchronous periodic sync on app startup
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If enabled in configuration this function will start periodic sync
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of pooled resources in background.
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"""
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if CONF.podm.enable_periodic_sync:
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async.start_periodic_worker([(
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pooled_devices.PooledDevices.synchronize_devices, None, None)])
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return
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def on_server_exit(server):
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"""Performs cleanup tasks. """
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async.stop_periodic_tasks()
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def main():
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options = {
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'bind': '%s:%s' % (CONF.api.bind_host, CONF.api.bind_port),
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'reload': CONF.api.debug,
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'timeout': CONF.api.timeout,
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'workers': CONF.api.workers,
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'loglevel': CONF.api.log_level,
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'errorlog': CONF.api.log_file,
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'worker_class': 'eventlet',
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'when_ready': start_periodic_tasks,
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'on_exit': on_server_exit
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}
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LOG.info(("Valence Server on http://%(host)s:%(port)s"),
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{'host': CONF.api.bind_host, 'port': CONF.api.bind_port})
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StandaloneApplication(application, options).run()
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if __name__ == '__main__':
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main()
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