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_get import GetNSInfoService
  25 from lcm.ns.ns_instant import InstantNSService
  26 from lcm.ns.ns_manual_scale import NSManualScaleService
  27 from lcm.ns.ns_heal import NSHealService
  28 from lcm.ns.ns_terminate import TerminateNsService, DeleteNsService
  29 from lcm.pub.database.models import NSInstModel, ServiceBaseInfoModel
  30 from lcm.pub.utils.jobutil import JobUtil, JOB_TYPE
  31 from lcm.pub.utils.values import ignore_case_get
  32 from lcm.pub.utils.restcall import req_by_msb
  33 from lcm.pub.exceptions import NSLCMException
  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 ={
  45             "csarId":csarId
  46             }
  47
  48         ret = GetNSInfoService(filter).get_ns_info()
  49         logger.debug("CreateNSView::get::ret=%s", ret)
  50         return Response(data=ret, status=status.HTTP_200_OK)
  51
  52     def post(self, request):
  53         logger.debug("Enter CreateNS: %s", request.data)
  54         if ignore_case_get(request.data, 'test') == "test":
  55             return Response(data={'nsInstanceId': "test"}, status=status.HTTP_201_CREATED)
  56         nsd_id = ignore_case_get(request.data, 'nsdId')
  57         ns_name = ignore_case_get(request.data, 'nsName')
  58         description = ignore_case_get(request.data, 'description')
  59         try:
  60             ns_inst_id = CreateNSService(nsd_id, ns_name, description).do_biz()
  61         except Exception as e:
  62             logger.error("Exception in CreateNS: %s", e.message)
  63             return Response(data={'error': e.message}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
  64         logger.debug("CreateNSView::post::ret={'nsInstanceId':%s}", ns_inst_id)
  65         return Response(data={'nsInstanceId': ns_inst_id}, status=status.HTTP_201_CREATED)
  66
  67
  68 class NSInstView(APIView):
  69     def post(self, request, ns_instance_id):
  70         ack = InstantNSService(ns_instance_id, request.data).do_biz()
  71         logger.debug("Leave NSInstView::post::ack=%s", ack)
  72         return Response(data=ack['data'], status=ack['status'])
  73
  74
  75 class TerminateNSView(APIView):
  76     def post(self, request, ns_instance_id):
  77         logger.debug("Enter TerminateNSView::post %s", request.data)
  78         termination_type = ignore_case_get(request.data, 'terminationType')
  79         graceful_termination_timeout = ignore_case_get(request.data, 'gracefulTerminationTimeout')
  80         job_id = JobUtil.create_job("VNF", JOB_TYPE.TERMINATE_VNF, ns_instance_id)
  81         try:
  82             TerminateNsService(ns_instance_id, termination_type, graceful_termination_timeout, job_id).start()
  83         except Exception as e:
  84             logger.error("Exception in CreateNS: %s", e.message)
  85             return Response(data={'error': e.message}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
  86         ret = {'jobId': job_id}
  87         logger.debug("Leave TerminateNSView::post ret=%s", ret)
  88         return Response(data=ret, status=status.HTTP_202_ACCEPTED)
  89
  90
  91 class NSHealView(APIView):
  92     def post(self, request, ns_instance_id):
  93         logger.debug("Enter HealNSView::post %s", request.data)
  94         job_id = JobUtil.create_job("VNF", JOB_TYPE.HEAL_VNF, ns_instance_id)
  95         try:
  96             NSHealService(ns_instance_id, request.data, job_id).start()
  97         except Exception as e:
  98             logger.error("Exception in HealNSView: %s", e.message)
  99             return Response(data={'error': e.message}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 100         ret = {'jobId': job_id}
 101         logger.debug("Leave HealNSView::post ret=%s", ret)
 102         return Response(data=ret, status=status.HTTP_202_ACCEPTED)
 103
 104
 105 class NSDetailView(APIView):
 106     def get(self, request, ns_instance_id):
 107         logger.debug("Enter NSDetailView::get ns(%s)", ns_instance_id)
 108         ns_filter ={"ns_inst_id":ns_instance_id}
 109         ret = GetNSInfoService(ns_filter).get_ns_info()
 110         if not ret:
 111             return Response(status=status.HTTP_404_NOT_FOUND)
 112         logger.debug("Leave NSDetailView::get::ret=%s", ret)
 113         return Response(data=ret, status=status.HTTP_200_OK)
 114
 115     def delete(self, request, ns_instance_id):
 116         logger.debug("Enter NSDetailView::delete ns(%s)", ns_instance_id)
 117         DeleteNsService(ns_instance_id).do_biz()
 118         return Response(data={}, status=status.HTTP_204_NO_CONTENT)
 119
 120
 121 class SwaggerJsonView(APIView):
 122     def get(self, request):
 123         json_file = os.path.join(os.path.dirname(__file__), 'swagger.json')
 124         f = open(json_file)
 125         json_data = json.JSONDecoder().decode(f.read())
 126         f.close()
 127         return Response(json_data)
 128
 129
 130 class NSInstPostDealView(APIView):
 131
 132
 133     def post(self, request, ns_instance_id):
 134         logger.debug("Enter NSInstPostDealView::post %s, %s", request.data, ns_instance_id)
 135         ns_post_status = ignore_case_get(request.data, 'status')
 136         ns_status = 'ACTIVE' if ns_post_status == 'true' else 'FAILED'
 137         ns_opr_status = 'success' if ns_post_status == 'true' else 'failed'
 138         try:
 139             NSInstModel.objects.filter(id=ns_instance_id).update(status=ns_status)
 140             ServiceBaseInfoModel.objects.filter(service_id=ns_instance_id).update(
 141                 active_status=ns_status, status=ns_opr_status)
 142             nsd_info = NSInstModel.objects.filter(id=ns_instance_id)
 143             nsd_id = nsd_info[0].nsd_id
 144             nsd_model = json.loads(nsd_info[0].nsd_model)
 145             if "policies" in nsd_model and nsd_model["policies"]:
 146                 policy = nsd_model["policies"][0]
 147                 if "properties" in policy and policy["properties"]:
 148                     file_url = ignore_case_get(policy["properties"][0], "drl_file_url")
 149                 else:
 150                     file_url = ""
 151                 self.send_policy_request(ns_instance_id, nsd_id, file_url)
 152         except:
 153             logger.error(traceback.format_exc())
 154             return Response(data={'error': 'Failed to update status of NS(%s)' % ns_instance_id},
 155                             status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 156         logger.debug("*****NS INST %s, %s******", ns_status, ns_opr_status)
 157         return Response(data={'success': 'Update status of NS(%s) to %s' % (ns_instance_id, ns_status)},
 158                         status=status.HTTP_202_ACCEPTED)
 159
 160     def send_policy_request(self,ns_instance_id, nsd_id, file_url):
 161         input_data = {
 162             "nsid": ns_instance_id,
 163             "nsdid": nsd_id,
 164             "fileUri":file_url
 165         }
 166         req_param = json.JSONEncoder().encode(input_data)
 167         policy_engine_url = 'api/polengine/v1/policyinfo'
 168         ret = req_by_msb(policy_engine_url, "POST", req_param)
 169         if ret[0] != 0:
 170             logger.error("Failed to send ns policy req")
 171             #raise NSLCMException('Failed to send ns policy req)')
 172
 173
 174 class NSManualScaleView(APIView):
 175     def post(self, request, ns_instance_id):
 176         logger.debug("Enter NSManualScaleView::post %s, %s", request.data, ns_instance_id)
 177         job_id = JobUtil.create_job("NS", JOB_TYPE.MANUAL_SCALE_VNF, ns_instance_id)
 178         try:
 179             NSManualScaleService(ns_instance_id, request.data, job_id).start()
 180         except Exception as e:
 181             logger.error(traceback.format_exc())
 182             JobUtil.add_job_status(job_id, 255, 'NS scale failed: %s' % e.message)
 183             return Response(data={'error': 'NS scale failed: %s' % ns_instance_id},
 184                             status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 185         return Response(data={'jobId': job_id}, status=status.HTTP_202_ACCEPTED)