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-#!/usr/bin/env python
-# pylint: disable=C0103
-# vim: tabstop=4 shiftwidth=4 softtabstop=4
-
-# Copyright 2010 United States Government as represented by the
-# Administrator of the National Aeronautics and Space Administration.
-# All Rights Reserved.
-#
-# 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.
-
-"""Starter script for Nova Direct API."""
-
-import eventlet
-eventlet.monkey_patch()
-
-import os
-import sys
-
-# If ../nova/__init__.py exists, add ../ to Python search path, so that
-# it will override what happens to be installed in /usr/(local/)lib/python...
-possible_topdir = os.path.normpath(os.path.join(os.path.abspath(sys.argv[0]),
- os.pardir,
- os.pardir))
-if os.path.exists(os.path.join(possible_topdir, 'nova', '__init__.py')):
- sys.path.insert(0, possible_topdir)
-
-
-from nova import compute
-from nova import flags
-from nova import log as logging
-from nova import network
-from nova.openstack.common import cfg
-from nova import service
-from nova import utils
-from nova import volume
-from nova import wsgi
-from nova.api import direct
-
-
-direct_api_opts = [
- cfg.IntOpt('direct_port',
- default=8001,
- help='Direct API port'),
- cfg.StrOpt('direct_host',
- default='0.0.0.0',
- help='Direct API host'),
- ]
-
-FLAGS = flags.FLAGS
-FLAGS.register_cli_opts(direct_api_opts)
-
-
-# An example of an API that only exposes read-only methods.
-# In this case we're just limiting which methods are exposed.
-class ReadOnlyCompute(direct.Limited):
- """Read-only Compute API."""
-
- _allowed = ['get', 'get_all', 'get_console_output']
-
-
-# An example of an API that provides a backwards compatibility layer.
-# In this case we're overwriting the implementation to ensure
-# compatibility with an older version. In reality we would want the
-# "description=None" to be part of the actual API so that code
-# like this isn't even necessary, but this example shows what one can
-# do if that isn't the situation.
-class VolumeVersionOne(direct.Limited):
- _allowed = ['create', 'delete', 'update', 'get']
-
- def create(self, context, size, name):
- self.proxy.create(context, size, name, description=None)
-
-
-if __name__ == '__main__':
- utils.default_flagfile()
- FLAGS(sys.argv)
- logging.setup()
-
- direct.register_service('compute', compute.API())
- direct.register_service('volume', volume.API())
- direct.register_service('network', network.API())
- direct.register_service('reflect', direct.Reflection())
-
- # Here is how we could expose the code in the examples above.
- #direct.register_service('compute-readonly',
- # ReadOnlyCompute(compute.API()))
- #direct.register_service('volume-v1', VolumeVersionOne(volume.API()))
-
- router = direct.Router()
- with_json = direct.JsonParamsMiddleware(router)
- with_req = direct.PostParamsMiddleware(with_json)
- with_auth = direct.DelegatedAuthMiddleware(with_req)
-
- server = wsgi.Server("Direct API",
- with_auth,
- host=FLAGS.direct_host,
- port=FLAGS.direct_port)
-
- service.serve(server)
- service.wait()