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Diffstat (limited to 'optimizers/placementopt/conductor/translation.py')
| -rw-r--r-- | optimizers/placementopt/conductor/translation.py | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/optimizers/placementopt/conductor/translation.py b/optimizers/placementopt/conductor/translation.py new file mode 100644 index 0000000..036398a --- /dev/null +++ b/optimizers/placementopt/conductor/translation.py @@ -0,0 +1,215 @@ +# ------------------------------------------------------------------------- +# 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 osdf.utils.data_conversion import text_to_symbol +from osdf.utils import data_mapping + +def gen_optimization_policy(vnf_list, optimization_policy): + """Generate optimization policy details to pass to Conductor + :param vnf_list: List of vnf's to used in placement request + :param optimization_policy: optimization policy information provided in the incoming request + :return: List of optimization policies in a format required by Conductor + """ + optimization_policy_list = [] + for policy in optimization_policy: + content = policy['content'] + parameter_list = [] + + for attr in content['objectiveParameter']['parameterAttributes']: + parameter = attr['parameter'] if attr['parameter'] == "cloud_version" else attr['parameter']+"_between" + for res in attr['resource']: + vnf = get_matching_vnf(res, vnf_list) + value = [vnf] if attr['parameter'] == "cloud_version" else [attr['customerLocationInfo'], vnf] + parameter_list.append({ + attr['operator']: [attr['weight'], {parameter: value}] + }) + + optimization_policy_list.append({ + content['objective']: {content['objectiveParameter']['operator']: parameter_list } + }) + return optimization_policy_list + + +def get_matching_vnf(resource, vnf_list): + + for vnf in vnf_list: + if resource in vnf: + return vnf + return resource + + +def get_matching_vnfs(resources, vnf_list, match_type="intersection"): + """Get a list of matching VNFs from the list of resources + :param resources: + :param vnf_list: List of vnf's to used in placement request + :param match_type: "intersection" or "all" or "any" (any => send all_vnfs if there is any intersection) + :return: List of matching VNFs + """ + common_vnfs = [] + for vnf in vnf_list: + for resource in resources: + if resource in vnf: + common_vnfs.append(vnf) + if match_type == "intersection": # specifically requested intersection + return common_vnfs + elif common_vnfs or match_type == "all": # ("any" and common) OR "all" + return resources + return None + + +def gen_policy_instance(vnf_list, resource_policy, match_type="intersection", rtype=None): + """Generate a list of policies + :param vnf_list: List of vnf's to used in placement request + :param resource_policy: policy for this specific resource + :param match_type: How to match the vnf_names with the vnf_list (intersection or "any") + intersection => return intersection; "any" implies return all vnf_names if intersection is not null + :param rtype: resource type (e.g. resourceRegionProperty or resourceInstanceProperty) + None => no controller information added to the policy specification to Conductor + :return: resource policy list in a format required by Conductor + """ + resource_policy_list = [] + related_policies = [] + for policy in resource_policy: + pc = policy['content'] + demands = get_matching_vnfs(pc['resourceInstanceType'], vnf_list, match_type=match_type) + resource = {pc['identity']: {'type': pc['type'], 'demands': demands}} + + if rtype: + resource[pc['identity']]['properties'] = {'controller': pc[rtype]['controller'], + 'request': json.loads(pc[rtype]['request'])} + if demands and len(demands) != 0: + resource_policy_list.append(resource) + related_policies.append(policy) + return resource_policy_list, related_policies + + +def gen_resource_instance_policy(vnf_list, resource_instance_policy): + """Get policies governing resource instances in order to populate the Conductor API call""" + cur_policies, _ = gen_policy_instance(vnf_list, resource_instance_policy, rtype='resourceInstanceProperty') + return cur_policies + + +def gen_resource_region_policy(vnf_list, resource_region_policy): + """Get policies governing resource region in order to populate the Conductor API call""" + cur_policies, _ = gen_policy_instance(vnf_list, resource_region_policy, rtype='resourceRegionProperty') + return cur_policies + + +def gen_inventory_group_policy(vnf_list, inventory_group_policy): + """Get policies governing inventory group in order to populate the Conductor API call""" + cur_policies, _ = gen_policy_instance(vnf_list, inventory_group_policy, rtype=None) + return cur_policies + + +def gen_reservation_policy(vnf_list, reservation_policy): + """Get policies governing resource instances in order to populate the Conductor API call""" + cur_policies, _ = gen_policy_instance(vnf_list, reservation_policy, rtype='instanceReservationProperty') + return cur_policies + + +def gen_distance_to_location_policy(vnf_list, distance_to_location_policy): + """Get policies governing distance-to-location for VNFs in order to populate the Conductor API call""" + cur_policies, related_policies = gen_policy_instance(vnf_list, distance_to_location_policy, rtype=None) + for p_new, p_main in zip(cur_policies, related_policies): # add additional fields to each policy + properties = p_main['content']['distanceToLocationProperty'] + pcp_d = properties['distanceCondition'] + p_new[p_main['content']['identity']]['properties'] = { + 'distance': text_to_symbol[pcp_d['operator']] + " " + pcp_d['value'].lower(), + 'location': properties['locationInfo'] + } + return cur_policies + + +def gen_attribute_policy(vnf_list, attribute_policy): + """Get policies governing attributes of VNFs in order to populate the Conductor API call""" + cur_policies, related_policies = gen_policy_instance(vnf_list, attribute_policy, rtype=None) + for p_new, p_main in zip(cur_policies, related_policies): # add additional fields to each policy + properties = p_main['content']['cloudAttributeProperty'] + p_new[p_main['content']['identity']]['properties'] = { + 'evaluate': { + 'hypervisor': properties.get('hypervisor', ''), + 'cloud_version': properties.get('cloudVersion', ''), + 'cloud_type': properties.get('cloudType', ''), + 'dataplane': properties.get('dataPlane', ''), + 'network_roles': properties.get('networkRoles', ''), + 'complex': properties.get('complex', ''), + 'state': properties.get('state', ''), + 'country': properties.get('country', ''), + 'geo_region': properties.get('geoRegion', ''), + 'exclusivity_groups': properties.get('exclusivityGroups', ''), + 'replication_role': properties.get('replicationRole', '') + } + } + return cur_policies + + +def gen_zone_policy(vnf_list, zone_policy): + """Get zone policies in order to populate the Conductor API call""" + cur_policies, related_policies = gen_policy_instance(vnf_list, zone_policy, rtype=None) + for p_new, p_main in zip(cur_policies, related_policies): # add additional fields to each policy + pmz = p_main['content']['zoneProperty'] + p_new[p_main['content']['identity']]['properties'] = {'category': pmz['category'], 'qualifier': pmz['qualifier']} + return cur_policies + + +def get_demand_properties(demand, policies): + """Get list demand properties objects (named tuples) from policy""" + def _get_candidates(candidate_info): + return [dict(inventory_type=x['candidateType'], candidate_id=x['candidates']) for x in candidate_info] + properties = [] + for policy in policies: + for resourceInstanceType in policy['content']['resourceInstanceType']: + if resourceInstanceType in demand['resourceModuleName']: + for x in policy['content']['property']: + property = dict(inventory_provider=x['inventoryProvider'], + inventory_type=x['inventoryType'], + service_resource_id=demand['serviceResourceId']) + if 'attributes' in x: + attributes = {} + for k,v in x['attributes'].items(): + key=data_mapping.convert(k) + attributes[key] = v + if(key=="model-invariant-id"): + attributes[key]=demand['resourceModelInfo']['modelInvariantId'] + elif(key=="model-version-id"): + attributes[key]=demand['resourceModelInfo']['modelVersionId'] + property.update({"attributes": attributes}) + if x['inventoryType'] == "cloud": + property['region'] = {'get_param': "CHOSEN_REGION"} + if 'exclusionCandidateInfo' in demand: + property['excluded_candidates'] = _get_candidates(demand['exclusionCandidateInfo']) + if 'requiredCandidateInfo' in demand: + property['required_candidates'] = _get_candidates(demand['requiredCandidateInfo']) + properties.append(property) + if len(properties) == 0: + properties.append(dict(customer_id="", service_type="", inventory_provider="", inventory_type="")) + return properties + + +def gen_demands(req_json, vnf_policies): + """Generate list of demands based on request and VNF policies + :param req_json: Request object from the client (e.g. MSO) + :param vnf_policies: Policies associated with demand resources (e.g. from grouped_policies['vnfPolicy']) + :return: list of demand parameters to populate the Conductor API call + """ + demand_dictionary = {} + for placementDemand in req_json['placementDemand']: + demand_dictionary.update({placementDemand['resourceModuleName']: get_demand_properties(placementDemand, vnf_policies)}) + + return demand_dictionary |