# ------------------------------------------------------------------------- # Copyright (c) 2015-2017 AT&T Intellectual Property # # 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. # # ------------------------------------------------------------------------- # """ OSDF Manager Main Flask Application """ import sys from threading import Thread # for scaling up, may need celery with RabbitMQ or redis from flask import Flask, request, Response, g import osdf import pydevd import json import osdf.adapters.policy.interface import osdf.config.credentials import osdf.config.loader import osdf.operation.error_handling import osdf.operation.responses import traceback from osdf.adapters.policy.interface import get_policies from osdf.config.base import osdf_config from osdf.optimizers.placementopt.conductor.remote_opt_processor import process_placement_opt from osdf.webapp.appcontroller import auth_basic from optparse import OptionParser from osdf.operation.exceptions import BusinessException from osdf.operation.error_handling import request_exception_to_json_body, internal_error_message from requests import RequestException from schematics.exceptions import DataError from osdf.logging.osdf_logging import MH, audit_log, error_log from osdf.models.api.placementRequest import PlacementAPI ERROR_TEMPLATE = osdf.ERROR_TEMPLATE app = Flask(__name__) BAD_CLIENT_REQUEST_MESSAGE = 'Client sent an invalid request' # An exception explicitly raised due to some business rule @app.errorhandler(BusinessException) def handle_business_exception(e): error_log.error("Synchronous error for request id {} {}".format(g.request_id, traceback.format_exc())) err_msg = ERROR_TEMPLATE.render(description=str(e)) response = Response(err_msg, content_type='application/json; charset=utf-8') response.status_code = 400 return response # Returns a detailed synchronous message to the calling client when osdf fails due to a remote call to another system @app.errorhandler(RequestException) def handle_request_exception(e): error_log.error("Synchronous error for request id {} {}".format(g.request_id, traceback.format_exc())) err_msg = request_exception_to_json_body(e) response = Response(err_msg, content_type='application/json; charset=utf-8') response.status_code = 400 return response # Returns a detailed message to the calling client when the initial synchronous message is invalid @app.errorhandler(DataError) def handle_data_error(e): error_log.error("Synchronous error for request id {} {}".format(g.request_id, traceback.format_exc())) body_dictionary = { "serviceException": { "text": BAD_CLIENT_REQUEST_MESSAGE, "exceptionMessage": str(e.messages), "errorType": "InvalidClientRequest" } } body_as_json = json.dumps(body_dictionary) response = Response(body_as_json, content_type='application/json; charset=utf-8') response.status_code = 400 return response @app.route("/osdf/api/v2/placement", methods=["POST"]) @auth_basic.login_required def do_placement_opt(): """Perform placement optimization after validating the request and fetching policies Make a call to the call-back URL with the output of the placement request. Note: Call to Conductor for placement optimization may have redirects, so account for them """ request_json = request.get_json() req_id = request_json['requestInfo']['requestId'] g.request_id = req_id audit_log.info(MH.received_request(request.url, request.remote_addr, json.dumps(request_json))) PlacementAPI(request_json).validate() # Currently policies are being used only during placement, so only fetch them if placement demands is not empty policies = {} if 'placementDemand' in request_json['placementInfo']['demandInfo']: policies, prov_status = get_policies(request_json, "placement") audit_log.info(MH.new_worker_thread(req_id, "[for placement]")) t = Thread(target=process_placement_opt, args=(request_json, policies, osdf_config, prov_status)) t.start() audit_log.info(MH.accepted_valid_request(req_id, request)) return osdf.operation.responses.osdf_response_for_request_accept( req_id=req_id, text="Accepted placement request. Response will be posted to callback URL") # Returned when unexpected coding errors occur during initial synchronous processing @app.errorhandler(500) def internal_failure(error): error_log.error("Synchronous error for request id {} {}".format(g.request_id, traceback.format_exc())) response = Response(internal_error_message, content_type='application/json; charset=utf-8') response.status_code = 500 return response def get_options(argv): program_version_string = '%%prog %s' % ("v1.0") program_longdesc = "" program_license = "" parser = OptionParser(version=program_version_string, epilog=program_longdesc, description=program_license) parser.add_option("-l", "--local", dest="local", help="run locally", action="store_true", default=False) parser.add_option("-t", "--devtest", dest="devtest", help="run in dev/test environment", action="store_true", default=False) parser.add_option("-d", "--debughost", dest="debughost", help="IP Address of host running debug server", default='') parser.add_option("-p", "--debugport", dest="debugport", help="Port number of debug server", type=int, default=5678) (opts, args) = parser.parse_args(argv) if (opts.debughost != ''): print('pydevd.settrace(%s, port=%s)' % (opts.debughost, opts.debugport)) pydevd.settrace(opts.debughost, port=opts.debugport) return opts if __name__ == "__main__": sys_conf = osdf_config['core']['osdf_system'] ports = sys_conf['osdf_ports'] internal_port, external_port = ports['internal'], ports['external'] ssl_context = tuple(sys_conf['ssl_context']) local_host = "0.0.0.0" # NOSONAR common_app_opts = dict(host=local_host, threaded=True, use_reloader=False) opts = get_options(sys.argv) if (not opts.local and not opts.devtest): # normal deployment app.run(port=internal_port, ssl_context=ssl_context, debug=False, **common_app_opts) else: port = internal_port if opts.local else external_port app.run(port=port, debug=True, **common_app_opts)