Long running process that terminates on different (Windows compatible) signals

signals.py

import logging
import os
import signal
import sys
import time
import timeit

start_time = timeit.default_timer()

logger = logging.getLogger(__name__)
logger.setLevel(logging.DEBUG)

formatter = logging.Formatter('[%(process)d] %(asctime)s: %(message)s')

for handler in (
    logging.StreamHandler(sys.stdout),
    logging.FileHandler(f'{os.environ.get("CI_BUILDS_DIR", ".")}/signal_handler.log')
):
    handler.setLevel(logging.DEBUG)
    handler.setFormatter(formatter)
    logger.addHandler(handler)

logger.info('! ------- start ------- !')
for key in ('CI_PROJECT_ID', 'CI_PIPELINE_ID', 'CI_JOB_ID'):
    logger.info(f'{key}={os.environ.get(key)}')


def signal_handler(signum, frame):
    runtime = timeit.default_timer() - start_time
    logger.info(f'terminated after {runtime:.1f}s with {signal.Signals(signum).name}')
    exit(1)


for sig in (signal.SIGINT, signal.SIGABRT, signal.SIGSEGV, signal.SIGTERM):
    signal.signal(sig, signal_handler)

logger.debug(sys.argv)

while True:
    logger.debug(f'heartbeat: {timeit.default_timer() - start_time:.1f}')
    time.sleep(1)