Amazon web services – How to correctly setup logging in AWS Lamda with Python

I am currently struggling to set up some basic logging in AWS Lambda. I have a function created from a container image where the main.py file looks like this:

import os

def lambda_handler(event, context):
    log_file = "/tmp/application.log"
    
    if os.path.exists(log_file):
        with open(log_file, "r") as f:
            file = f.read()
    else:
        file = "File does not exist"
    return {
        "statusCode": 200,
        "body": file
    }

The logging configuration is created in another file, logging_config.py:

import logging

LOG_FILE = "/tmp/application.log"

logging.basicConfig(
    level=logging.INFO,
    format="%(asctime)s - %(levelname)s - %(message)s",
    handlers=[
        logging.FileHandler(LOG_FILE),
        logging.StreamHandler(),
    ]
)

logger = logging.getLogger("my-logger")

The logger variable is then imported into other modules that should log on various levels (info, debug, error). However, I am not able to see the logs anywhere, nor do they get redirected to the /tmp/application.log file. When the function finishes executing, it returns:

{
  "statusCode": 200,
  "body": ""
}

So I am assuming that the log file gets created because the body is empty, but not populated with anything.
What I am missing? Thanks.

I tried the solution above but the logs were not redirected to the log file.