fail-handler.py

import time
import random
import boto3
from botocore.exceptions import ClientError

s3 = boto3.client("s3")

def upload_with_retry(local_path: str, bucket: str, s3_key: str, max_retries: int = 5) -> bool:
    for attempt in range(max_retries):
        try:
            s3.upload_file(local_path, bucket, s3_key)
            return True
        except ClientError as error:
            wait_time = (2 ** attempt) + random.uniform(0, 1)
            print(f"Attempt {attempt + 1} failed: {error}. Retrying in {wait_time:.1f}s")
            time.sleep(wait_time)

    print(f"Failed to upload {local_path} after {max_retries} attempts")
    return False