111 lines
3.6 KiB
Python
Executable File
111 lines
3.6 KiB
Python
Executable File
#!/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()
|