diff options
Diffstat (limited to 'apps/placement/optimizers/conductor/api_builder.py')
| -rw-r--r-- | apps/placement/optimizers/conductor/api_builder.py | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/apps/placement/optimizers/conductor/api_builder.py b/apps/placement/optimizers/conductor/api_builder.py new file mode 100644 index 0000000..7b61580 --- /dev/null +++ b/apps/placement/optimizers/conductor/api_builder.py @@ -0,0 +1,99 @@ +# ------------------------------------------------------------------------- +# 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. +# +# ------------------------------------------------------------------------- +# + +import json + +from jinja2 import Template + +import apps.placement.optimizers.conductor.translation as tr +from osdf.adapters.policy.utils import group_policies_gen +from osdf.utils.programming_utils import list_flatten + + +def _build_parameters(group_policies, request_json): + """ + Function prepares parameters section for has request + :param group_policies: filtered policies + :param request_json: parameter data received from a client + :return: + """ + initial_params = tr.get_opt_query_data(request_json, group_policies['request_param_query']) + params = dict() + params.update({"REQUIRED_MEM": initial_params.pop("requiredMemory", "")}) + params.update({"REQUIRED_DISK": initial_params.pop("requiredDisk", "")}) + params.update({"customer_lat": initial_params.pop("customerLatitude", 0.0)}) + params.update({"customer_long": initial_params.pop("customerLongitude", 0.0)}) + params.update({"service_name": request_json['serviceInfo']['serviceName']}) + params.update({"service_id": request_json['serviceInfo']['serviceInstanceId']}) + + for key, val in initial_params.items(): + if val and val != "": + params.update({key: val}) + + return params + + +def conductor_api_builder(request_json, flat_policies: list, local_config, + template="apps/placement/templates/conductor_interface.json"): + """Build an OSDF southbound API call for HAS-Conductor/Placement optimization + :param request_json: parameter data received from a client + :param flat_policies: policy data received from the policy platform (flat policies) + :param template: template to generate southbound API call to conductor + :param local_config: local configuration file with pointers for the service specific information + :param prov_status: provStatus retrieved from Subscriber policy + :return: json to be sent to Conductor/placement optimization + """ + templ = Template(open(template).read()) + gp = group_policies_gen(flat_policies, local_config) + demand_vnf_name_list = [] + + for placementDemand in request_json['placementInfo']['placementDemands']: + demand_vnf_name_list.append(placementDemand['resourceModuleName'].lower()) + demand_list = tr.gen_demands(request_json, gp['vnfPolicy']) + attribute_policy_list = tr.gen_attribute_policy(demand_vnf_name_list, gp['attribute']) + distance_to_location_policy_list = tr.gen_distance_to_location_policy( + demand_vnf_name_list, gp['distance_to_location']) + inventory_policy_list = tr.gen_inventory_group_policy(demand_vnf_name_list, gp['inventory_group']) + resource_instance_policy_list = tr.gen_resource_instance_policy( + demand_vnf_name_list, gp['instance_fit']) + resource_region_policy_list = tr.gen_resource_region_policy(demand_vnf_name_list, gp['region_fit']) + zone_policy_list = tr.gen_zone_policy(demand_vnf_name_list, gp['zone']) + optimization_policy_list = tr.gen_optimization_policy(demand_vnf_name_list, gp['placement_optimization']) + reservation_policy_list = tr.gen_reservation_policy(demand_vnf_name_list, gp['instance_reservation']) + capacity_policy_list = tr.gen_capacity_policy(demand_vnf_name_list, gp['vim_fit']) + hpa_policy_list = tr.gen_hpa_policy(demand_vnf_name_list, gp['hpa']) + req_params_dict = _build_parameters(gp, request_json) + conductor_policies = [attribute_policy_list, distance_to_location_policy_list, inventory_policy_list, + resource_instance_policy_list, resource_region_policy_list, zone_policy_list, + reservation_policy_list, capacity_policy_list, hpa_policy_list] + filtered_policies = [x for x in conductor_policies if len(x) > 0] + policy_groups = list_flatten(filtered_policies) + req_info = request_json['requestInfo'] + request_type = req_info.get('requestType', None) + rendered_req = templ.render( + requestType=request_type, + demand_list=demand_list, + policy_groups=policy_groups, + optimization_policies=optimization_policy_list, + name=req_info['requestId'], + timeout=req_info['timeout'], + limit=req_info['numSolutions'], + request_params=req_params_dict, + json=json) + json_payload = json.dumps(json.loads(rendered_req)) # need this because template's JSON is ugly! + return json_payload |