lcm/ns/views.py

   1 # Copyright 2016-2017 ZTE Corporation.
   2 #
   3 # Licensed under the Apache License, Version 2.0 (the "License");
   4 # you may not use this file except in compliance with the License.
   5 # You may obtain a copy of the License at
   6 #
   7 #         http://www.apache.org/licenses/LICENSE-2.0
   8 #
   9 # Unless required by applicable law or agreed to in writing, software
  10 # distributed under the License is distributed on an "AS IS" BASIS,
  11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 # See the License for the specific language governing permissions and
  13 # limitations under the License.
  14 import json
  15 import logging
  16 import os
  17 import traceback
  18
  19 from rest_framework import status
  20 from rest_framework.response import Response
  21 from rest_framework.views import APIView
  22
  23 from lcm.ns.ns_create import CreateNSService
  24 from lcm.ns.ns_delete import DeleteNsService
  25 from lcm.ns.ns_get import GetNSInfoService
  26 from lcm.ns.ns_heal import NSHealService
  27 from lcm.ns.ns_instant import InstantNSService
  28 from lcm.ns.ns_manual_scale import NSManualScaleService
  29 from lcm.ns.ns_terminate import TerminateNsService
  30 from lcm.pub.database.models import NSInstModel, ServiceBaseInfoModel
  31 from lcm.pub.utils.jobutil import JobUtil, JOB_TYPE
  32 from lcm.pub.utils.restcall import req_by_msb
  33 from lcm.pub.utils.values import ignore_case_get
  34
  35 logger = logging.getLogger(__name__)
  36
  37
  38 class CreateNSView(APIView):
  39     def get(self, request):
  40         logger.debug("CreateNSView::get")
  41         filter = None
  42         csarId = ignore_case_get(request.META, 'csarId')
  43         if csarId:
  44             filter = {"csarId": csarId}
  45
  46         ret = GetNSInfoService(filter).get_ns_info()
  47         logger.debug("CreateNSView::get::ret=%s", ret)
  48         return Response(data=ret, status=status.HTTP_200_OK)
  49
  50     def post(self, request):
  51         logger.debug("Enter CreateNS: %s", request.data)
  52         if ignore_case_get(request.data, 'test') == "test":
  53             return Response(data={'nsInstanceId': "test"}, status=status.HTTP_201_CREATED)
  54         # nsd_id = ignore_case_get(request.data, 'nsdId')
  55         csar_id = ignore_case_get(request.data, 'csarId')
  56         ns_name = ignore_case_get(request.data, 'nsName')
  57         description = ignore_case_get(request.data, 'description')
  58         context = ignore_case_get(request.data, 'context')
  59         try:
  60             ns_inst_id = CreateNSService(csar_id, ns_name, description, context).do_biz()
  61         except Exception as e:
  62             logger.error(traceback.format_exc())
  63             logger.error("Exception in CreateNS: %s", e.message)
  64             return Response(data={'error': e.message}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
  65         logger.debug("CreateNSView::post::ret={'nsInstanceId':%s}", ns_inst_id)
  66         return Response(data={'nsInstanceId': ns_inst_id}, status=status.HTTP_201_CREATED)
  67
  68
  69 class NSInstView(APIView):
  70     def post(self, request, ns_instance_id):
  71         ack = InstantNSService(ns_instance_id, request.data).do_biz()
  72         logger.debug("Leave NSInstView::post::ack=%s", ack)
  73         return Response(data=ack['data'], status=ack['status'])
  74
  75
  76 class TerminateNSView(APIView):
  77     def post(self, request, ns_instance_id):
  78         logger.debug("Enter TerminateNSView::post %s", request.data)
  79         termination_type = ignore_case_get(request.data, 'terminationType')
  80         graceful_termination_timeout = ignore_case_get(request.data, 'gracefulTerminationTimeout')
  81         job_id = JobUtil.create_job("VNF", JOB_TYPE.TERMINATE_VNF, ns_instance_id)
  82         try:
  83             TerminateNsService(ns_instance_id, termination_type, graceful_termination_timeout, job_id).start()
  84         except Exception as e:
  85             logger.error("Exception in CreateNS: %s", e.message)
  86             return Response(data={'error': e.message}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
  87         ret = {'jobId': job_id}
  88         logger.debug("Leave TerminateNSView::post ret=%s", ret)
  89         return Response(data=ret, status=status.HTTP_202_ACCEPTED)
  90
  91
  92 class NSHealView(APIView):
  93     def post(self, request, ns_instance_id):
  94         logger.debug("Enter HealNSView::post %s", request.data)
  95         job_id = JobUtil.create_job("VNF", JOB_TYPE.HEAL_VNF, ns_instance_id)
  96         try:
  97             NSHealService(ns_instance_id, request.data, job_id).start()
  98         except Exception as e:
  99             logger.error("Exception in HealNSView: %s", e.message)
 100             return Response(data={'error': e.message}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 101         ret = {'jobId': job_id}
 102         logger.debug("Leave HealNSView::post ret=%s", ret)
 103         return Response(data=ret, status=status.HTTP_202_ACCEPTED)
 104
 105
 106 class NSDetailView(APIView):
 107     def get(self, request, ns_instance_id):
 108         logger.debug("Enter NSDetailView::get ns(%s)", ns_instance_id)
 109         ns_filter = {"ns_inst_id": ns_instance_id}
 110         ret = GetNSInfoService(ns_filter).get_ns_info()
 111         if not ret:
 112             return Response(status=status.HTTP_404_NOT_FOUND)
 113         logger.debug("Leave NSDetailView::get::ret=%s", ret)
 114         return Response(data=ret, status=status.HTTP_200_OK)
 115
 116     def delete(self, request, ns_instance_id):
 117         logger.debug("Enter NSDetailView::delete ns(%s)", ns_instance_id)
 118         DeleteNsService(ns_instance_id).do_biz()
 119         return Response(data={}, status=status.HTTP_204_NO_CONTENT)
 120
 121
 122 class SwaggerJsonView(APIView):
 123     def get(self, request):
 124         json_file = os.path.join(os.path.dirname(__file__), 'swagger.json')
 125         f = open(json_file)
 126         json_data = json.JSONDecoder().decode(f.read())
 127         f.close()
 128         return Response(json_data)
 129
 130
 131 class NSInstPostDealView(APIView):
 132     def post(self, request, ns_instance_id):
 133         logger.debug("Enter NSInstPostDealView::post %s, %s", request.data, ns_instance_id)
 134         ns_post_status = ignore_case_get(request.data, 'status')
 135         ns_status = 'ACTIVE' if ns_post_status == 'true' else 'FAILED'
 136         ns_opr_status = 'success' if ns_post_status == 'true' else 'failed'
 137         try:
 138             NSInstModel.objects.filter(id=ns_instance_id).update(status=ns_status)
 139             ServiceBaseInfoModel.objects.filter(service_id=ns_instance_id).update(
 140                 active_status=ns_status, status=ns_opr_status)
 141             nsd_info = NSInstModel.objects.filter(id=ns_instance_id)
 142             nsd_id = nsd_info[0].nsd_id
 143             nsd_model = json.loads(nsd_info[0].nsd_model)
 144             if "policies" in nsd_model and nsd_model["policies"]:
 145                 policy = nsd_model["policies"][0]
 146                 if "properties" in policy and policy["properties"]:
 147                     file_url = ignore_case_get(policy["properties"][0], "drl_file_url")
 148                 else:
 149                     file_url = ""
 150                 self.send_policy_request(ns_instance_id, nsd_id, file_url)
 151         except:
 152             logger.error(traceback.format_exc())
 153             return Response(data={'error': 'Failed to update status of NS(%s)' % ns_instance_id},
 154                             status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 155         logger.debug("*****NS INST %s, %s******", ns_status, ns_opr_status)
 156         return Response(data={'success': 'Update status of NS(%s) to %s' % (ns_instance_id, ns_status)},
 157                         status=status.HTTP_202_ACCEPTED)
 158
 159     def send_policy_request(self, ns_instance_id, nsd_id, file_url):
 160         input_data = {
 161             "nsid": ns_instance_id,
 162             "nsdid": nsd_id,
 163             "fileUri": file_url
 164         }
 165         req_param = json.JSONEncoder().encode(input_data)
 166         policy_engine_url = 'api/polengine/v1/policyinfo'
 167         ret = req_by_msb(policy_engine_url, "POST", req_param)
 168         if ret[0] != 0:
 169             logger.error("Failed to send ns policy req")
 170
 171
 172 class NSManualScaleView(APIView):
 173     def post(self, request, ns_instance_id):
 174         logger.debug("Enter NSManualScaleView::post %s, %s", request.data, ns_instance_id)
 175         job_id = JobUtil.create_job("NS", JOB_TYPE.MANUAL_SCALE_VNF, ns_instance_id)
 176         try:
 177             NSManualScaleService(ns_instance_id, request.data, job_id).start()
 178         except Exception as e:
 179             logger.error(traceback.format_exc())
 180             JobUtil.add_job_status(job_id, 255, 'NS scale failed: %s' % e.message)
 181             return Response(data={'error': 'NS scale failed: %s' % ns_instance_id},
 182                             status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 183         return Response(data={'jobId': job_id}, status=status.HTTP_202_ACCEPTED)