diff options
Diffstat (limited to 'apps/placement/optimizers/conductor/remote_opt_processor.py')
| -rw-r--r-- | apps/placement/optimizers/conductor/remote_opt_processor.py | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/apps/placement/optimizers/conductor/remote_opt_processor.py b/apps/placement/optimizers/conductor/remote_opt_processor.py new file mode 100644 index 0000000..2e681be --- /dev/null +++ b/apps/placement/optimizers/conductor/remote_opt_processor.py @@ -0,0 +1,178 @@ +# ------------------------------------------------------------------------- +# Copyright (c) 2015-2017 AT&T Intellectual Property +# Copyright (C) 2020 Wipro Limited. +# +# 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. +# +# ------------------------------------------------------------------------- +# + +from jinja2 import Template +import json +from requests import RequestException +import traceback + +from apps.license.optimizers.simple_license_allocation import license_optim +from osdf.adapters.conductor import conductor +from osdf.logging.osdf_logging import debug_log +from osdf.logging.osdf_logging import error_log +from osdf.logging.osdf_logging import metrics_log +from osdf.logging.osdf_logging import MH +from osdf.operation.error_handling import build_json_error_body +from osdf.utils.interfaces import get_rest_client +from osdf.utils.mdc_utils import mdc_from_json + + +def conductor_response_processor(conductor_response, req_id, transaction_id): + """Build a response object to be sent to client's callback URL from Conductor's response + + This includes Conductor's placement optimization response, and required ASDC license artifacts + :param conductor_response: JSON response from Conductor + :param raw_response: Raw HTTP response corresponding to above + :param req_id: Id of a request + :return: JSON object that can be sent to the client's callback URL + """ + composite_solutions = [] + name_map = {"physical-location-id": "cloudClli", "host_id": "vnfHostName", + "cloud_version": "cloudVersion", "cloud_owner": "cloudOwner", + "cloud": "cloudRegionId", "service": "serviceInstanceId", "is_rehome": "isRehome", + "location_id": "locationId", "location_type": "locationType", "directives": "oof_directives"} + for reco in conductor_response['plans'][0]['recommendations']: + for resource in reco.keys(): + c = reco[resource]['candidate'] + solution = { + 'resourceModuleName': resource, + 'serviceResourceId': reco[resource].get('service_resource_id', ""), + 'solution': {"identifierType": name_map.get(c['inventory_type'], c['inventory_type']), + 'identifiers': [c['candidate_id']], + 'cloudOwner': c.get('cloud_owner', "")}, + 'assignmentInfo': [] + } + for key, value in c.items(): + if key in ["location_id", "location_type", "is_rehome", "host_id"]: + try: + solution['assignmentInfo'].append({"key": name_map.get(key, key), "value": value}) + except KeyError: + debug_log.debug("The key[{}] is not mapped and will not be returned in assignment info" + .format(key)) + + for key, value in reco[resource]['attributes'].items(): + try: + solution['assignmentInfo'].append({"key": name_map.get(key, key), "value": value}) + except KeyError: + debug_log.debug("The key[{}] is not mapped and will not be returned in assignment info" + .format(key)) + composite_solutions.append(solution) + + request_status = "completed" if conductor_response['plans'][0]['status'] == "done" \ + else conductor_response['plans'][0]['status'] + status_message = conductor_response.get('plans')[0].get('message', "") + + solution_info = {} + if composite_solutions: + solution_info.setdefault('placementSolutions', []) + solution_info['placementSolutions'].append(composite_solutions) + + resp = { + "transactionId": transaction_id, + "requestId": req_id, + "requestStatus": request_status, + "statusMessage": status_message, + "solutions": solution_info + } + return resp + + +def conductor_no_solution_processor(conductor_response, request_id, transaction_id, + template_placement_response="templates/plc_opt_response.jsont"): + """Build a response object to be sent to client's callback URL from Conductor's response + + This is for case where no solution is found + :param conductor_response: JSON response from Conductor + :param raw_response: Raw HTTP response corresponding to above + :param request_id: request Id associated with the client request (same as conductor response's "name") + :param template_placement_response: the template for generating response to client (plc_opt_response.jsont) + :return: JSON object that can be sent to the client's callback URL + """ + status_message = conductor_response["plans"][0].get("message") + templ = Template(open(template_placement_response).read()) + return json.loads(templ.render(composite_solutions=[], requestId=request_id, license_solutions=[], + transactionId=transaction_id, + requestStatus="completed", statusMessage=status_message, json=json)) + + +def process_placement_opt(request_json, policies, osdf_config): + """Perform the work for placement optimization (e.g. call SDC artifact and make conductor request) + + NOTE: there is scope to make the requests to policy asynchronous to speed up overall performance + :param request_json: json content from original request + :param policies: flattened policies corresponding to this request + :param osdf_config: configuration specific to OSDF app + :param prov_status: provStatus retrieved from Subscriber policy + :return: None, but make a POST to callback URL + """ + + try: + mdc_from_json(request_json) + rc = get_rest_client(request_json, service="so") + req_id = request_json["requestInfo"]["requestId"] + transaction_id = request_json['requestInfo']['transactionId'] + + metrics_log.info(MH.inside_worker_thread(req_id)) + license_info = None + if request_json.get('licenseInfo', {}).get('licenseDemands'): + license_info = license_optim(request_json) + + # Conductor only handles placement, only call Conductor if placementDemands exist + if request_json.get('placementInfo', {}).get('placementDemands'): + metrics_log.info(MH.requesting("placement/conductor", req_id)) + req_info = request_json['requestInfo'] + demands = request_json['placementInfo']['placementDemands'] + request_parameters = request_json['placementInfo']['requestParameters'] + service_info = request_json['serviceInfo'] + template_fields = { + 'location_enabled': True, + 'version': '2017-10-10' + } + resp = conductor.request(req_info, demands, request_parameters, service_info, template_fields, + osdf_config, policies) + if resp["plans"][0].get("recommendations"): + placement_response = conductor_response_processor(resp, req_id, transaction_id) + else: # "solved" but no solutions found + placement_response = conductor_no_solution_processor(resp, req_id, transaction_id) + if license_info: # Attach license solution if it exists + placement_response['solutionInfo']['licenseInfo'] = license_info + else: # License selection only scenario + placement_response = { + "transactionId": transaction_id, + "requestId": req_id, + "requestStatus": "completed", + "statusMessage": "License selection completed successfully", + "solutionInfo": {"licenseInfo": license_info} + } + except Exception as err: + error_log.error("Error for {} {}".format(req_id, traceback.format_exc())) + + try: + body = build_json_error_body(err) + metrics_log.info(MH.sending_response(req_id, "ERROR")) + rc.request(json=body, noresponse=True) + except RequestException: + error_log.error("Error sending asynchronous notification for {} {}".format(req_id, traceback.format_exc())) + return + + try: + metrics_log.info(MH.calling_back_with_body(req_id, rc.url, placement_response)) + rc.request(json=placement_response, noresponse=True) + except RequestException: # can't do much here but log it and move on + error_log.error("Error sending asynchronous notification for {} {}".format(req_id, traceback.format_exc())) |