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authorkrishnaa96 <krishna.moorthy6@wipro.com>2020-03-10 10:55:13 +0530
committerkrishnaa96 <krishna.moorthy6@wipro.com>2020-03-20 20:39:59 +0530
commitf30da9513ae0501f453ee93729b381270fad0a2b (patch)
treea3ab005e2f16bfe8709bdcfbab6d28b5c6760a19 /apps/placement/optimizers
parent420f4b3a4ca25d5de5c9318b2ca89e1ef126b278 (diff)
Add generic conductor interface
Issue-ID: OPTFRA-715 Signed-off-by: krishnaa96 <krishna.moorthy6@wipro.com> Change-Id: I84218ab65e645a90d2ff1c365bdde1e06ab27d2e
Diffstat (limited to 'apps/placement/optimizers')
-rw-r--r--apps/placement/optimizers/conductor/api_builder.py107
-rwxr-xr-xapps/placement/optimizers/conductor/conductor.py202
-rw-r--r--apps/placement/optimizers/conductor/remote_opt_processor.py94
-rw-r--r--apps/placement/optimizers/conductor/translation.py347
4 files changed, 91 insertions, 659 deletions
diff --git a/apps/placement/optimizers/conductor/api_builder.py b/apps/placement/optimizers/conductor/api_builder.py
deleted file mode 100644
index 398db8d..0000000
--- a/apps/placement/optimizers/conductor/api_builder.py
+++ /dev/null
@@ -1,107 +0,0 @@
-# -------------------------------------------------------------------------
-# 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['onap.policies.optimization.QueryPolicy'])
- 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['onap.policies.optimization.VnfPolicy'])
- attribute_policy_list = tr.gen_attribute_policy(
- demand_vnf_name_list, gp['onap.policies.optimization.AttributePolicy'])
- distance_to_location_policy_list = tr.gen_distance_to_location_policy(
- demand_vnf_name_list, gp['onap.policies.optimization.DistancePolicy'])
- inventory_policy_list = tr.gen_inventory_group_policy(
- demand_vnf_name_list, gp['onap.policies.optimization.InventoryGroupPolicy'])
- resource_instance_policy_list = tr.gen_resource_instance_policy(
- demand_vnf_name_list, gp['onap.policies.optimization.ResourceInstancePolicy'])
- resource_region_policy_list = tr.gen_resource_region_policy(
- demand_vnf_name_list, gp['onap.policies.optimization.ResourceRegionPolicy'])
- zone_policy_list = tr.gen_zone_policy(
- demand_vnf_name_list, gp['onap.policies.optimization.AffinityPolicy'])
- optimization_policy_list = tr.gen_optimization_policy(
- demand_vnf_name_list, gp['onap.policies.optimization.OptimizationPolicy'])
- reservation_policy_list = tr.gen_reservation_policy(
- demand_vnf_name_list, gp['onap.policies.optimization.InstanceReservationPolicy'])
- capacity_policy_list = tr.gen_capacity_policy(
- demand_vnf_name_list, gp['onap.policies.optimization.Vim_fit'])
- hpa_policy_list = tr.gen_hpa_policy(
- demand_vnf_name_list, gp['onap.policies.optimization.HpaPolicy'])
- 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
diff --git a/apps/placement/optimizers/conductor/conductor.py b/apps/placement/optimizers/conductor/conductor.py
deleted file mode 100755
index 05d1641..0000000
--- a/apps/placement/optimizers/conductor/conductor.py
+++ /dev/null
@@ -1,202 +0,0 @@
-# -------------------------------------------------------------------------
-# 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.
-#
-# -------------------------------------------------------------------------
-#
-
-"""
-This application generates conductor API calls using the information received from SO and Policy platform.
-"""
-
-import json
-import time
-
-from jinja2 import Template
-from requests import RequestException
-
-from apps.placement.optimizers.conductor.api_builder import conductor_api_builder
-from osdf.logging.osdf_logging import debug_log
-from osdf.utils.interfaces import RestClient
-from osdf.operation.exceptions import BusinessException
-
-
-def request(req_object, osdf_config, flat_policies):
- """
- Process a placement request from a Client (build Conductor API call, make the call, return result)
- :param req_object: Request parameters from the client
- :param osdf_config: Configuration specific to SNIRO application (core + deployment)
- :param flat_policies: policies related to placement (fetched based on request)
- :param prov_status: provStatus retrieved from Subscriber policy
- :return: response from Conductor (accounting for redirects from Conductor service
- """
- config = osdf_config.deployment
- local_config = osdf_config.core
- uid, passwd = config['conductorUsername'], config['conductorPassword']
- conductor_url = config['conductorUrl']
- req_id = req_object['requestInfo']['requestId']
- transaction_id = req_object['requestInfo']['transactionId']
- headers = dict(transaction_id=transaction_id)
- placement_ver_enabled = config.get('placementVersioningEnabled', False)
-
- if placement_ver_enabled:
- cond_minor_version = config.get('conductorMinorVersion', None)
- if cond_minor_version is not None:
- x_minor_version = str(cond_minor_version)
- headers.update({'X-MinorVersion': x_minor_version})
- debug_log.debug("Versions set in HTTP header to conductor: X-MinorVersion: {} ".format(x_minor_version))
-
- max_retries = config.get('conductorMaxRetries', 30)
- ping_wait_time = config.get('conductorPingWaitTime', 60)
-
- rc = RestClient(userid=uid, passwd=passwd, method="GET", log_func=debug_log.debug, headers=headers)
- conductor_req_json_str = conductor_api_builder(req_object, flat_policies, local_config)
- conductor_req_json = json.loads(conductor_req_json_str)
-
- debug_log.debug("Sending first Conductor request for request_id {}".format(req_id))
- resp, raw_resp = initial_request_to_conductor(rc, conductor_url, conductor_req_json)
- # Very crude way of keeping track of time.
- # We are not counting initial request time, first call back, or time for HTTP request
- total_time, ctr = 0, 2
- client_timeout = req_object['requestInfo']['timeout']
- configured_timeout = max_retries * ping_wait_time
- max_timeout = min(client_timeout, configured_timeout)
-
- while True: # keep requesting conductor till we get a result or we run out of time
- if resp is not None:
- if resp["plans"][0].get("status") in ["error"]:
- raise RequestException(response=raw_resp, request=raw_resp.request)
-
- if resp["plans"][0].get("status") in ["done", "not found"]:
- if resp["plans"][0].get("recommendations"):
- return conductor_response_processor(resp, raw_resp, req_id)
- else: # "solved" but no solutions found
- return conductor_no_solution_processor(resp, raw_resp, req_id)
- new_url = resp['plans'][0]['links'][0][0]['href'] # TODO: check why a list of lists
-
- if total_time >= max_timeout:
- raise BusinessException("Conductor could not provide a solution within {} seconds,"
- "this transaction is timing out".format(max_timeout))
- time.sleep(ping_wait_time)
- ctr += 1
- debug_log.debug("Attempt number {} url {}; prior status={}".format(ctr, new_url, resp['plans'][0]['status']))
- total_time += ping_wait_time
-
- try:
- raw_resp = rc.request(new_url, raw_response=True)
- resp = raw_resp.json()
- except RequestException as e:
- debug_log.debug("Conductor attempt {} for request_id {} has failed because {}".format(ctr, req_id, str(e)))
-
-
-def initial_request_to_conductor(rc, conductor_url, conductor_req_json):
- """First steps in the request-redirect chain in making a call to Conductor
- :param rc: REST client object for calling conductor
- :param conductor_url: conductor's base URL to submit a placement request
- :param conductor_req_json: request json object to send to Conductor
- :return: URL to check for follow up (similar to redirects); we keep checking these till we get a result/error
- """
- debug_log.debug("Payload to Conductor: {}".format(json.dumps(conductor_req_json)))
- raw_resp = rc.request(url=conductor_url, raw_response=True, method="POST", json=conductor_req_json)
- resp = raw_resp.json()
- if resp["status"] != "template":
- raise RequestException(response=raw_resp, request=raw_resp.request)
- time.sleep(10) # 10 seconds wait time to avoid being too quick!
- plan_url = resp["links"][0][0]["href"]
- debug_log.debug("Attempting to read the plan from the conductor provided url {}".format(plan_url))
- raw_resp = rc.request(raw_response=True, url=plan_url) # TODO: check why a list of lists for links
- resp = raw_resp.json()
-
- if resp["plans"][0]["status"] in ["error"]:
- raise RequestException(response=raw_resp, request=raw_resp.request)
- return resp, raw_resp # now the caller of this will handle further follow-ups
-
-
-def conductor_response_processor(conductor_response, raw_response, req_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']
- transaction_id = raw_response.headers.get('transaction_id', "")
- 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, raw_response, request_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=raw_response.headers.get('transaction_id', ""),
- requestStatus="completed", statusMessage=status_message, json=json))
-
-
diff --git a/apps/placement/optimizers/conductor/remote_opt_processor.py b/apps/placement/optimizers/conductor/remote_opt_processor.py
index a08f3a4..0b5cb16 100644
--- a/apps/placement/optimizers/conductor/remote_opt_processor.py
+++ b/apps/placement/optimizers/conductor/remote_opt_processor.py
@@ -1,5 +1,6 @@
# -------------------------------------------------------------------------
# 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.
@@ -16,17 +17,95 @@
# -------------------------------------------------------------------------
#
+import json
+from jinja2 import Template
from requests import RequestException
import traceback
from osdf.operation.error_handling import build_json_error_body
-from osdf.logging.osdf_logging import metrics_log, MH, error_log
-from apps.placement.optimizers.conductor import conductor
+from osdf.logging.osdf_logging import metrics_log, MH, error_log, debug_log
+from osdf.adapters.conductor import conductor
from apps.license.optimizers.simple_license_allocation import license_optim
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
@@ -51,7 +130,16 @@ def process_placement_opt(request_json, policies, osdf_config):
# 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))
- placement_response = conductor.request(request_json, osdf_config, policies)
+ req_info = request_json['requestInfo']
+ demands = request_json['placementInfo']['placementDemands']
+ request_parameters = request_json['placementInfo']['requestParameters']
+ service_info = request_json['serviceInfo']
+ resp = conductor.request(req_info, demands, request_parameters, service_info,
+ 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
diff --git a/apps/placement/optimizers/conductor/translation.py b/apps/placement/optimizers/conductor/translation.py
deleted file mode 100644
index d637152..0000000
--- a/apps/placement/optimizers/conductor/translation.py
+++ /dev/null
@@ -1,347 +0,0 @@
-# -------------------------------------------------------------------------
-# 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 copy
-import json
-import re
-
-import yaml
-
-from osdf.utils.programming_utils import dot_notation
-
-policy_config_mapping = yaml.safe_load(open('config/has_config.yaml')).get('policy_config_mapping')
-
-
-def get_opt_query_data(req_json, policies):
- """
- Fetch service and order specific details from the requestParameters field of a request.
- :param req_json: a request file
- :param policies: A set of policies
- :return: A dictionary with service and order-specific attributes.
- """
- req_param_dict = {}
- if 'requestParameters' in req_json["placementInfo"]:
- req_params = req_json["placementInfo"]["requestParameters"]
- for policy in policies:
- for queryProp in policy[list(policy.keys())[0]]['properties']['queryProperties']:
- attr_val = queryProp['value'] if 'value' in queryProp and queryProp['value'] != "" \
- else dot_notation(req_params, queryProp['attribute_location'])
- if attr_val is not None:
- req_param_dict.update({queryProp['attribute']: attr_val})
- return req_param_dict
-
-
-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 objective policy information provided in the incoming request
- :return: List of optimization objective policies in a format required by Conductor
- """
- optimization_policy_list = []
- for policy in optimization_policy:
- content = policy[list(policy.keys())[0]]['properties']
- parameter_list = []
- parameters = ["cloud_version", "hpa_score"]
-
- for attr in content['objectiveParameter']['parameterAttributes']:
- parameter = attr['parameter'] if attr['parameter'] in parameters else attr['parameter']+"_between"
- default, vnfs = get_matching_vnfs(attr['resources'], vnf_list)
- for vnf in vnfs:
- value = [vnf] if attr['parameter'] in parameters 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_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 vnfs 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
- """
- # Check if it is a default policy
- default = True if resources == [] else False
- resources_lcase = [x.lower() for x in resources] if not default else [x.lower() for x in vnf_list]
- if match_type == "all": # don't bother with any comparisons
- return default, resources if set(resources_lcase) <= set(vnf_list) else None
- common_vnfs = set(vnf_list) & set(resources_lcase) if not default else set(vnf_list)
- common_resources = [x for x in resources if x.lower() in common_vnfs] if not default else list(common_vnfs)
- if match_type == "intersection": # specifically requested intersection
- return default, list(common_resources)
- return default, resources if common_vnfs else None # "any" match => all resources to be returned
-
-
-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[list(policy.keys())[0]]
- default, demands = get_matching_vnfs(pc['properties']['resources'], vnf_list, match_type=match_type)
- resource = {pc['properties']['identity']: {'type': map_constraint_type(pc['type']), 'demands': demands}}
-
- if rtype:
- resource[pc['properties']['identity']]['properties'] = {'controller': pc[rtype]['controller'],
- 'request': json.loads(pc[rtype]['request'])}
- if demands and len(demands) != 0:
- # The default policy shall not override the specific policy that already appended
- if default:
- for d in demands:
- resource_repeated = True \
- if {pc['properties']['identity']: {'type': map_constraint_type(pc['type']), 'demands': d}} \
- in resource_policy_list else False
- if resource_repeated:
- continue
- else:
- resource_policy_list.append(
- {pc['properties']['identity']: {'type': map_constraint_type(pc['type']), 'demands': d }})
- policy[list(policy.keys())[0]]['properties']['resources'] = d
- related_policies.append(policy)
- # Need to override the default policies, here delete the outdated policy stored in the db
- if resource in resource_policy_list:
- for pc in related_policies:
- if pc[list(pc.keys()[0])]['properties']['resources'] == resource:
- related_policies.remove(pc)
- resource_policy_list.remove(resource)
- related_policies.append(policy)
- resource_policy_list.append(resource)
-
- 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[list(p_main.keys())[0]]['properties']['distanceProperties']
- pcp_d = properties['distance']
- p_new[p_main[list(p_main.keys())[0]]['properties']['identity']]['properties'] = {
- 'distance': pcp_d['operator'] + " " + pcp_d['value'].lower() + " " + pcp_d['unit'].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[list(p_main.keys())[0]]['properties']['attributeProperties']
- attribute_mapping = policy_config_mapping['filtering_attributes'] # wanted attributes and mapping
- p_new[p_main[list(p_main.keys())[0]]['properties']['identity']]['properties'] = {
- 'evaluate': dict((attribute_mapping[k], properties.get(k)
- if k != "cloudRegion" else gen_cloud_region(properties))
- for k in attribute_mapping.keys())
- }
- return cur_policies # cur_policies gets updated in place...
-
-
-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, match_type="all", rtype=None)
- for p_new, p_main in zip(cur_policies, related_policies): # add additional fields to each policy
- pmz = p_main[list(p_main.keys())[0]]['properties']['affinityProperties']
- p_new[p_main[list(p_main.keys())[0]]['properties']['identity']]['properties'] = \
- {'category': pmz['category'], 'qualifier': pmz['qualifier']}
- return cur_policies
-
-
-def gen_capacity_policy(vnf_list, capacity_policy):
- """Get zone policies in order to populate the Conductor API call"""
- cur_policies, related_policies = gen_policy_instance(vnf_list, capacity_policy, rtype=None)
- for p_new, p_main in zip(cur_policies, related_policies): # add additional fields to each policy
- pmz = p_main[list(p_main.keys())[0]]['properties']['capacityProperty']
- p_new[p_main[list(p_main.keys())[0]]['properties']['identity']]['properties'] = \
- {"controller": pmz['controller'], 'request': json.loads(pmz['request'])}
- return cur_policies
-
-
-def gen_hpa_policy(vnf_list, hpa_policy):
- """Get zone policies in order to populate the Conductor API call"""
- cur_policies, related_policies = gen_policy_instance(vnf_list, hpa_policy, rtype=None)
- for p_new, p_main in zip(cur_policies, related_policies): # add additional fields to each policy
- p_new[p_main[list(p_main.keys())[0]]['properties']['identity']]['properties'] = \
- {'evaluate': p_main[list(p_main.keys())[0]]['properties']['flavorFeatures']}
- return cur_policies
-
-
-def get_augmented_policy_attributes(policy_property, demand):
- """Get policy attributes and augment them using policy_config_mapping and demand information"""
- attributes = copy.copy(policy_property['attributes'])
- remapping = policy_config_mapping['remapping']
- extra = dict((x, demand['resourceModelInfo'][remapping[x]]) for x in attributes if x in remapping)
- attributes.update(extra)
- return attributes
-
-
-def get_candidates_demands(demand):
- """Get demands related to candidates; e.g. excluded/required"""
- res = {}
- for k, v in policy_config_mapping['candidates'].items():
- if k not in demand:
- continue
- res[v] = [{'inventory_type': x['identifierType'], 'candidate_id': x['identifiers']} for x in demand[k]]
- return res
-
-
-def get_policy_properties(demand, policies):
- """Get policy_properties for cases where there is a match with the demand"""
- for policy in policies:
- policy_demands = set([x.lower() for x in policy[list(policy.keys())[0]]['properties']['resources']])
- if policy_demands and demand['resourceModuleName'].lower() not in policy_demands:
- continue # no match for this policy
- elif policy_demands == set(): # Append resource name for default policy
- policy[list(policy.keys())[0]]['properties'].update(resources=list(demand.get('resourceModuleName')))
- for policy_property in policy[list(policy.keys())[0]]['properties']['vnfProperties']:
- yield policy_property
-
-
-def get_demand_properties(demand, policies):
- """Get list demand properties objects (named tuples) from policy"""
- demand_properties = []
- for policy_property in get_policy_properties(demand, policies):
- prop = dict(inventory_provider=policy_property['inventoryProvider'],
- inventory_type=policy_property['inventoryType'],
- service_type=demand['serviceResourceId'],
- service_resource_id=demand['serviceResourceId'])
-
- prop.update({'unique': policy_property['unique']} if 'unique' in policy_property and
- policy_property['unique'] else {})
- prop['filtering_attributes'] = dict()
- prop['filtering_attributes'].update({'global-customer-id': policy_property['customerId']}
- if policy_property['customerId'] else {})
- prop['filtering_attributes'].update({'model-invariant-id': demand['resourceModelInfo']['modelInvariantId']}
- if demand['resourceModelInfo']['modelInvariantId'] else {})
- prop['filtering_attributes'].update({'model-version-id': demand['resourceModelInfo']['modelVersionId']}
- if demand['resourceModelInfo']['modelVersionId'] else {})
- prop['filtering_attributes'].update({'equipment-role': policy_property['equipmentRole']}
- if policy_property['equipmentRole'] else {})
-
- if policy_property.get('attributes'):
- for attr_key, attr_val in policy_property['attributes'].items():
- update_converted_attribute(attr_key, attr_val, prop, 'filtering_attributes')
- if policy_property.get('passthroughAttributes'):
- prop['passthrough_attributes'] = dict()
- for attr_key, attr_val in policy_property['passthroughAttributes'].items():
- update_converted_attribute(attr_key, attr_val, prop, 'passthrough_attributes')
-
- prop.update(get_candidates_demands(demand))
- demand_properties.append(prop)
- return demand_properties
-
-
-def update_converted_attribute(attr_key, attr_val, properties, attribute_type):
- """
- Updates dictonary of attributes with one specified in the arguments.
- Automatically translates key namr from camelCase to hyphens
- :param attribute_type: attribute section name
- :param attr_key: key of the attribute
- :param attr_val: value of the attribute
- :param properties: dictionary with attributes to update
- :return:
- """
- if attr_val:
- remapping = policy_config_mapping[attribute_type]
- if remapping.get(attr_key):
- key_value = remapping.get(attr_key)
- else:
- key_value = re.sub('(.)([A-Z][a-z]+)', r'\1-\2', attr_key)
- key_value = re.sub('([a-z0-9])([A-Z])', r'\1-\2', key_value).lower()
- properties[attribute_type].update({key_value: attr_val})
-
-
-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 demand in req_json['placementInfo']['placementDemands']:
- prop = get_demand_properties(demand, vnf_policies)
- if len(prop) > 0:
- demand_dictionary.update({demand['resourceModuleName']: prop})
- return demand_dictionary
-
-
-def map_constraint_type(policy_type):
- if "onap.policies.optimization.AttributePolicy" == policy_type:
- return "attribute"
- if "onap.policies.optimization.DistancePolicy" == policy_type:
- return "distance_to_location"
- if "onap.policies.optimization.InventoryGroupPolicy" == policy_type:
- return "inventory_group"
- if "onap.policies.optimization.ResourceInstancePolicy" == policy_type:
- return "instance_fit"
- if "onap.policies.optimization.ResourceRegionPolicy" == policy_type:
- return "region_fit"
- if "onap.policies.optimization.AffinityPolicy" == policy_type:
- return "zone"
- if "onap.policies.optimization.InstanceReservationPolicy" == policy_type:
- return "instance_reservation"
- if "onap.policies.optimization.Vim_fit" == policy_type:
- return "vim_fit"
- if "onap.policies.optimization.HpaPolicy" == policy_type:
- return "hpa"
-
- return policy_type
-
-
-def gen_cloud_region(property):
- prop = {"cloud_region_attributes": dict()}
- if 'cloudRegion' in property:
- for k,v in property['cloudRegion'].items():
- update_converted_attribute(k, v, prop, 'cloud_region_attributes')
- return prop["cloud_region_attributes"]