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# Copyright 2022-2024 ETSI OSG/SDG TeraFlowSDN (TFS) (https://tfs.etsi.org/)
#
# 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 logging, signal, sys, threading, time
from prometheus_client import start_http_server
from common.Constants import ServiceNameEnum
from common.Settings import (
ENVVAR_SUFIX_SERVICE_HOST, ENVVAR_SUFIX_SERVICE_PORT_GRPC, get_env_var_name, get_log_level, get_metrics_port,
wait_for_environment_variables)
from common.proto import monitoring_pb2
from monitoring.service.EventTools import EventsDeviceCollector # import updated
from monitoring.service.NameMapping import NameMapping # import updated
from .KpiManagerService import KpiManagerService
terminate = threading.Event()
LOGGER = None
def signal_handler(signal, frame): # pylint: disable=redefined-outer-name
LOGGER.warning('Terminate signal received')
terminate.set()
def start_kpi_manager(name_mapping : NameMapping):
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events_collector = EventsDeviceCollector(name_mapping)
events_collector.start()
# TODO: redesign this method to be more clear and clean
# Iterate while terminate is not set
while not terminate.is_set():
list_new_kpi_ids = events_collector.listen_events()
# Monitor Kpis
if bool(list_new_kpi_ids):
for kpi_id in list_new_kpi_ids:
# Create Monitor Kpi Requests
monitor_kpi_request = monitoring_pb2.MonitorKpiRequest()
monitor_kpi_request.kpi_id.CopyFrom(kpi_id)
monitor_kpi_request.monitoring_window_s = 86400
monitor_kpi_request.sampling_rate_s = 10
events_collector._monitoring_client.MonitorKpi(monitor_kpi_request)
time.sleep(0.5) # let other tasks run; do not overload CPU
else:
# Terminate is set, looping terminates
LOGGER.warning("Stopping execution...")
events_collector.start()
def main():
global LOGGER # pylint: disable=global-statement
log_level = get_log_level()
logging.basicConfig(level=log_level)
LOGGER = logging.getLogger(__name__)
wait_for_environment_variables([
get_env_var_name(ServiceNameEnum.CONTEXT, ENVVAR_SUFIX_SERVICE_HOST ),
get_env_var_name(ServiceNameEnum.CONTEXT, ENVVAR_SUFIX_SERVICE_PORT_GRPC),
get_env_var_name(ServiceNameEnum.DEVICE, ENVVAR_SUFIX_SERVICE_HOST ),
get_env_var_name(ServiceNameEnum.DEVICE, ENVVAR_SUFIX_SERVICE_PORT_GRPC),
])
signal.signal(signal.SIGINT, signal_handler)
signal.signal(signal.SIGTERM, signal_handler)
LOGGER.info('Starting...')
# Start metrics server
metrics_port = get_metrics_port()
start_http_server(metrics_port)
name_mapping = NameMapping()
# Starting monitoring service
# grpc_service = MonitoringService(name_mapping)
# grpc_service.start()
# start_monitoring(name_mapping)
grpc_service = KpiManagerService(name_mapping)
grpc_service.start()
start_kpi_manager(name_mapping)
# Wait for Ctrl+C or termination signal
while not terminate.wait(timeout=1.0): pass
LOGGER.info('Terminating...')
grpc_service.stop()
LOGGER.info('Bye')
return 0
if __name__ == '__main__':
sys.exit(main())