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import time
import re
from typing import Iterable
from uuid import uuid4
from yaml import load
from onapsdk.aai.business import Customer, ServiceInstance, ServiceSubscription
from onapsdk.configuration import settings
from onapsdk.so.instantiation import Subnet
from onapsdk.sdc.service import Service
from onapsdk.vid import LineOfBusiness, Platform
import onaptests.utils.exceptions as onap_test_exceptions
from ..base import YamlTemplateBaseStep
from .service_ala_carte import YamlTemplateServiceAlaCarteInstantiateStep
class YamlTemplateVlAlaCarteInstantiateStep(YamlTemplateBaseStep):
"""Instantiate vl a'la carte using YAML template."""
def __init__(self, cleanup=False):
"""Initialize step.
Substeps:
- YamlTemplateServiceAlaCarteInstantiateStep.
"""
super().__init__(cleanup=cleanup)
self._yaml_template: dict = None
self._service_instance_name: str = None
self._service_instance: ServiceInstance = None
self.add_step(YamlTemplateServiceAlaCarteInstantiateStep(cleanup))
@property
def yaml_template(self) -> dict:
"""Step YAML template.
Load from file if it's a root step, get from parent otherwise.
Returns:
dict: Step YAML template
"""
if self.is_root:
if not self._yaml_template:
with open(settings.SERVICE_YAML_TEMPLATE, "r") as yaml_template:
self._yaml_template: dict = load(yaml_template)
return self._yaml_template
return self.parent.yaml_template
@property
def service_name(self) -> str:
"""Service name.
Get from YAML template if it's a root step, get from parent otherwise.
Returns:
str: Service name
"""
if self.is_root:
return next(iter(self.yaml_template.keys()))
return self.parent.service_name
@property
def service_instance_name(self) -> str:
"""Service instance name.
Generate using `service_name` and `uuid4()` function if it's a root step,
get from parent otherwise.
Returns:
str: Service instance name
"""
if self.is_root:
if not self._service_instance_name:
self._service_instance_name: str = f"{self.service_name}-{str(uuid4())}"
return self._service_instance_name
return self.parent.service_instance_name
def get_subnets(self, network_name: str) -> Iterable[Subnet]:
"""Get Network parameters from YAML template.
Args:
network_name (str): Network name to get parameters for.
Yields:
Iterator[Iterable[Subnet]]: Subnets
"""
# workaround, as Network name differs from model name (added " 0")
network_name=re.sub(r"\s\d$", r"", network_name)
for net in self.yaml_template[self.service_name]["networks"]:
if net["vl_name"] == network_name:
if net['subnets'] is None:
print("No Subnet defined")
else:
for subnet in net['subnets']:
yield Subnet(
name=subnet['subnet-name'],
start_address=subnet['start-address'],
gateway_address=subnet['gateway-address'],
cidr_mask=subnet['cidr-mask'],
ip_version=subnet['ip-version'],
dhcp_enabled=subnet['dhcp-enabled'])
@YamlTemplateBaseStep.store_state
def execute(self) -> None:
"""Instantiate Vl.
Use settings values:
- GLOBAL_CUSTOMER_ID.
Raises:
Exception: Vl instantiation failed
"""
super().execute()
service: Service = Service(self.service_name)
customer: Customer = Customer.get_by_global_customer_id(settings.GLOBAL_CUSTOMER_ID)
service_subscription: ServiceSubscription = customer.get_service_subscription_by_service_type(self.service_name)
service_instance: ServiceInstance = service_subscription.get_service_instance_by_name(self.service_instance_name)
self._service_instance = service_instance
line_of_business: LineOfBusiness = LineOfBusiness(settings.LINE_OF_BUSINESS)
platform: Platform = Platform(settings.PLATFORM)
for idx, network in enumerate(service.networks):
#for network in self.yaml_template[self.service_name]["networks"]:
net_instantiation = service_instance.add_network(
network,
line_of_business,
platform,
network_instance_name=f"{self.service_instance_name}_net_{idx}",
subnets=self.get_subnets(network.name))
while not net_instantiation.finished:
time.sleep(10)
if net_instantiation.failed:
raise onap_test_exceptions.NetworkInstantiateException
def cleanup(self) -> None:
"""Cleanup VL.
Raises:
Exception: VL cleaning failed
"""
if settings.CLEANUP_FLAG:
for net_instance in self._service_instance.network_instances:
self._logger.info("Start network deletion %s",net_instance.name)
net_deletion = net_instance.delete()
try:
net_deletion.wait_for_finish()
except TimeoutError:
raise onap_test_exceptions.NetworkCleanupException
super().cleanup()
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