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-rwxr-xr-x[-rw-r--r--]osdf/optimizers/placementopt/conductor/conductor.py396
1 files changed, 202 insertions, 194 deletions
diff --git a/osdf/optimizers/placementopt/conductor/conductor.py b/osdf/optimizers/placementopt/conductor/conductor.py
index f40ee95..29f0bbc 100644..100755
--- a/osdf/optimizers/placementopt/conductor/conductor.py
+++ b/osdf/optimizers/placementopt/conductor/conductor.py
@@ -1,194 +1,202 @@
-# -------------------------------------------------------------------------
-# 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 osdf.logging.osdf_logging import debug_log
-from osdf.optimizers.placementopt.conductor.api_builder import conductor_api_builder
-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)
-
- 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"}
- 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))
-
-
+# -------------------------------------------------------------------------
+# 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 osdf.logging.osdf_logging import debug_log
+from osdf.optimizers.placementopt.conductor.api_builder import conductor_api_builder
+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"}
+ 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))
+
+