141 lines
4.7 KiB
Python
141 lines
4.7 KiB
Python
# Copyright (c) 2013 Mirantis Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import eventlet
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import flask
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from keystoneclient.middleware import auth_token
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from oslo.config import cfg
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from werkzeug import exceptions as werkzeug_exceptions
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from savanna.api import v10 as api_v10
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from savanna import context
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from savanna.db import api as db_api
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from savanna.middleware import auth_valid
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from savanna.openstack.common import log
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from savanna.openstack.common.middleware import debug
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from savanna.plugins import base as plugins_base
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from savanna.utils import api as api_utils
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from savanna.utils import patches
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from savanna.utils import scheduler
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LOG = log.getLogger(__name__)
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eventlet.monkey_patch(
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os=True, select=True, socket=True, thread=True, time=True)
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# Patches minidom's writexml to avoid excess whitespaces in generated xml
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# configuration files that brakes Hadoop.
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patches.patch_minidom_writexml()
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opts = [
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cfg.StrOpt('os_auth_protocol',
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default='http',
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help='Protocol used to access OpenStack Identity service'),
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cfg.StrOpt('os_auth_host',
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default='127.0.0.1',
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help='IP or hostname of machine on which OpenStack Identity '
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'service is located'),
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cfg.StrOpt('os_auth_port',
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default='35357',
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help='Port of OpenStack Identity service'),
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cfg.StrOpt('os_admin_username',
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default='admin',
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help='This OpenStack user is used to verify provided tokens. '
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'The user must have admin role in <os_admin_tenant_name> '
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'tenant'),
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cfg.StrOpt('os_admin_password',
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default='nova',
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help='Password of the admin user'),
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cfg.StrOpt('os_admin_tenant_name',
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default='admin',
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help='Name of tenant where the user is admin')
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]
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CONF = cfg.CONF
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CONF.register_opts(opts)
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def make_app():
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"""App builder (wsgi)
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Entry point for Savanna REST API server
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"""
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app = flask.Flask('savanna.api')
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@app.route('/', methods=['GET'])
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def version_list():
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context.set_ctx(None)
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return api_utils.render({
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"versions": [
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{"id": "v1.0", "status": "CURRENT"}
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]
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})
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@app.teardown_request
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def teardown_request(_ex=None):
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# TODO(slukjanov): how it'll work in case of exception?
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if context.has_ctx():
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if flask.request.path != '/':
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try:
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session = context.session()
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if session.transaction:
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session.transaction.commit()
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except Exception as e:
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return api_utils.internal_error(
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500, 'Internal Server Error', e)
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context.set_ctx(None)
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app.register_blueprint(api_v10.rest, url_prefix='/v1.0')
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db_api.configure_db()
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scheduler.setup_scheduler(app)
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plugins_base.setup_plugins()
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def make_json_error(ex):
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status_code = (ex.code
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if isinstance(ex, werkzeug_exceptions.HTTPException)
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else 500)
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description = (ex.description
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if isinstance(ex, werkzeug_exceptions.HTTPException)
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else str(ex))
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return api_utils.render({'error': status_code,
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'error_message': description},
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status=status_code)
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for code in werkzeug_exceptions.default_exceptions.iterkeys():
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app.error_handler_spec[None][code] = make_json_error
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if CONF.debug and not CONF.log_exchange:
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LOG.debug('Logging of request/response exchange could be enabled using'
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' flag --log-exchange')
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if CONF.log_exchange:
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app.wsgi_app = debug.Debug.factory(app.config)(app.wsgi_app)
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app.wsgi_app = auth_valid.filter_factory(app.config)(app.wsgi_app)
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app.wsgi_app = auth_token.filter_factory(
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app.config,
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auth_host=CONF.os_auth_host,
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auth_port=CONF.os_auth_port,
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auth_protocol=CONF.os_auth_protocol,
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admin_user=CONF.os_admin_username,
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admin_password=CONF.os_admin_password,
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admin_tenant_name=CONF.os_admin_tenant_name
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)(app.wsgi_app)
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return app
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