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# Copyright 2017 ZTE Corporation.
#
# 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
import logging
import traceback
from threading import Thread
from lcm.nf.const import VNF_STATUS, RESOURCE_MAP
from lcm.pub.database.models import NfInstModel, VmInstModel, NetworkInstModel, StorageInstModel, \
PortInstModel, VNFCInstModel, FlavourInstModel, SubNetworkInstModel
from lcm.pub.exceptions import NFLCMException
from lcm.pub.msapi.gvnfmdriver import apply_grant_to_nfvo, notify_lcm_to_nfvo
from lcm.pub.utils.jobutil import JobUtil
from lcm.pub.utils.timeutil import now_time
from lcm.pub.utils.values import ignore_case_get
from lcm.pub.vimapi import adaptor
logger = logging.getLogger(__name__)
class TerminateVnf(Thread):
def __init__(self, data, nf_inst_id, job_id):
super(TerminateVnf, self).__init__()
self.data = data
self.nf_inst_id = nf_inst_id
self.job_id = job_id
self.terminationType = ignore_case_get(self.data, "terminationType")
self.gracefulTerminationTimeout = ignore_case_get(self.data, "gracefulTerminationTimeout")
self.inst_resource = {'volumn': [], 'network': [], 'subnet': [], 'port': [], 'flavor': [], 'vm': []}
def run(self):
try:
if self.term_pre():
self.grant_resource()
self.query_inst_resource()
self.query_notify_data()
self.delete_resource()
self.lcm_notify()
JobUtil.add_job_status(self.job_id, 100, "Terminate Vnf success.")
except NFLCMException as e:
self.vnf_term_failed_handle(e.message)
except Exception as e:
logger.error(e.message)
self.vnf_term_failed_handle(traceback.format_exc())
def term_pre(self):
vnf_insts = NfInstModel.objects.filter(nfinstid=self.nf_inst_id)
if not vnf_insts.exists():
logger.warn('VnfInst(%s) does not exist' % self.nf_inst_id)
return False
if self.terminationType == 'GRACEFUL' and not self.gracefulTerminationTimeout:
logger.warn("Set Graceful default termination timeout = 60")
self.gracefulTerminationTimeout = 60
NfInstModel.objects.filter(nfinstid=self.nf_inst_id).update(status=VNF_STATUS.TERMINATING)
JobUtil.add_job_status(self.job_id, 10, 'Nf terminating pre-check finish')
logger.info("Nf terminating pre-check finish")
return True
def grant_resource(self):
logger.info("Grant resource begin")
content_args = {
'vnfInstanceId': self.nf_inst_id,
'vnfDescriptorId': '',
'lifecycleOperation': 'Terminate',
'jobId': self.job_id,
'addResource': [],
'removeResource': [],
'placementConstraint': [],
'additionalParam': {}
}
vdus = VmInstModel.objects.filter(instid=self.nf_inst_id, is_predefined=1)
res_index = 1
for vdu in vdus:
res_def = {
'type': 'VDU',
'resDefId': str(res_index),
'resDesId': vdu.resouceid}
content_args['removeResource'].append(res_def)
res_index += 1
vnfInsts = NfInstModel.objects.filter(nfinstid=self.nf_inst_id)
content_args['additionalParam']['vnfmid'] = vnfInsts[0].vnfminstid
content_args['additionalParam']['vimid'] = vdus[0].vimid
logger.info('Grant request data=%s' % content_args)
self.apply_result = apply_grant_to_nfvo(json.dumps(content_args))
logger.info("Grant resource end, response: %s" % self.apply_result)
JobUtil.add_job_status(self.job_id, 20, 'Nf terminating grant_resource finish')
def query_inst_resource(self):
logger.info('Query resource begin')
for resource_type in RESOURCE_MAP.keys():
resource_table = globals().get(resource_type + 'InstModel')
resource_insts = resource_table.objects.filter(instid=self.nf_inst_id)
for resource_inst in resource_insts:
if not resource_inst.resouceid:
continue
self.inst_resource[RESOURCE_MAP.get(resource_type)].append(self.get_resource(resource_inst))
logger.info('Query resource end, resource=%s' % self.inst_resource)
def get_resource(self, resource):
return {
"vim_id": resource.vimid,
"tenant_id": resource.tenant,
"res_id": resource.resouceid,
"is_predefined": resource.is_predefined
}
def query_notify_data(self):
logger.info('Send notify request to nfvo')
affected_vnfcs = []
vnfcs = VNFCInstModel.objects.filter(instid=self.nf_inst_id)
for vnfc in vnfcs:
vm_resource = {}
if vnfc.vmid:
vm = VmInstModel.objects.filter(vmid=vnfc.vmid)
if vm:
vm_resource = {
'vimId': vm[0].vimid,
'resourceId': vm[0].resouceid,
'resourceProviderId': vm[0].vmname,
'vimLevelResourceType': 'vm'
}
affected_vnfcs.append({
'id': vnfc.vnfcinstanceid,
'vduId': vnfc.vduid,
'changeType': 'REMOVED',
'computeResource': vm_resource
})
affected_vls = []
networks = NetworkInstModel.objects.filter(instid=self.nf_inst_id)
for network in networks:
network_resource = {
'vimConnectionId': network.vimid,
'resourceId': network.resouceid,
'resourceProviderId': network.name,
'vimLevelResourceType': 'network'
}
affected_vls.append({
'id': network.networkid,
'virtualLinkDescId': network.nodeId,
'changeType': 'REMOVED',
'networkResource': network_resource
})
ext_link_ports = []
ports = PortInstModel.objects.filter(instid=self.nf_inst_id)
for port in ports:
ext_link_ports.append({
'id': port.portid,
'resourceHandle': {
'vimConnectionId': port.vimid,
'resourceId': port.resouceid,
'resourceProviderId': port.name,
'vimLevelResourceType': 'port'
},
'cpInstanceId': port.cpinstanceid
})
affected_vss = []
vss = StorageInstModel.objects.filter(instid=self.nf_inst_id)
for vs in vss:
affected_vss.append({
'id': vs.storageid,
'virtualStorageDescId': vs.nodeId,
'changeType': 'REMOVED',
'storageResource': {
'vimConnectionId': vs.vimid,
'resourceId': vs.resouceid,
'resourceProviderId': vs.name,
'vimLevelResourceType': 'volume'
}
})
FlavourInstModel.objects.filter(instid=self.nf_inst_id)
SubNetworkInstModel.objects.filter(instid=self.nf_inst_id)
self.notify_data = {
"notificationType": 'VnfLcmOperationOccurrenceNotification',
"notificationStatus": 'RESULT',
"vnfInstanceId": self.nf_inst_id,
"operation": 'TERMINATE',
"vnfLcmOpOccId": self.job_id,
'affectedVnfcs': affected_vnfcs,
'affectedVirtualLinks': affected_vls,
'affectedVirtualStorages': affected_vss,
'chengedExtConnectivity': [{
'id': None, # TODO
'resourceHandle': None, # TODO
'extLinkPorts': ext_link_ports
}]
}
vnfInsts = NfInstModel.objects.filter(nfinstid=self.nf_inst_id)
self.notify_data['vnfmInstId'] = vnfInsts[0].vnfminstid
logger.info('Notify request data=%s' % self.notify_data)
def delete_resource(self):
logger.info('Rollback resource begin')
adaptor.delete_vim_res(self.inst_resource, self.do_notify_delete)
logger.info('Rollback resource complete')
def do_notify_delete(self, res_type, res_id):
logger.error('Deleting [%s] resource, resourceid [%s]' % (res_type, res_id))
resource_type = RESOURCE_MAP.keys()[RESOURCE_MAP.values().index(res_type)]
resource_table = globals().get(resource_type + 'InstModel')
resource_table.objects.filter(instid=self.nf_inst_id, resouceid=res_id).delete()
def lcm_notify(self):
NfInstModel.objects.filter(nfinstid=self.nf_inst_id).update(status='NOT_INSTANTIATED', lastuptime=now_time())
logger.info('Send notify request to nfvo')
resp = notify_lcm_to_nfvo(json.dumps(self.notify_data))
logger.info('Lcm notify end, response: %s' % resp)
def vnf_term_failed_handle(self, error_msg):
logger.error('VNF termination failed, detail message: %s' % error_msg)
NfInstModel.objects.filter(nfinstid=self.nf_inst_id).update(status='failed', lastuptime=now_time())
JobUtil.add_job_status(self.job_id, 255, error_msg)
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