AWS Lambda function to log salient details then exit...

lambda_function.py

import logging
import os

log_level = os.environ['LOG_LEVEL'] if 'LOG_LEVEL' in os.environ else 'INFO'
logging_levels = {"DEBUG": logging.DEBUG, "INFO": logging.INFO, "WARNING": logging.WARNING, "ERROR": logging.ERROR, "CRITICAL": logging.CRITICAL} # https://docs.python.org/3/library/logging.html#levels
logging_level = logging_levels[log_level] if log_level in logging_levels else logging.INFO

logger = logging.getLogger()
logger.setLevel(logging_level)

# if the function uses boto3
##for package in ['boto3', 'botocore', 'urllib3']:
##    logging.getLogger(package).setLevel(logging.CRITICAL)

def lambda_handler(event, context):
    logger.info(f"{context.function_name} ({context.function_version}) with event: {event}") # https://docs.aws.amazon.com/lambda/latest/dg/python-context-object.html
    return