generate-cron-expression-for-aws-cloudwatch-events.py

from datetime import datetime, timedelta

def deletion_time(ttl):
    print("[DEBUG] The Current Time is: ",datetime.now())
    delete_at_time = datetime.now() + timedelta(minutes=int(ttl))
    print("[DEBUG] This Will be deleted at: ",delete_at_time)
    hh = delete_at_time.hour
    mm = delete_at_time.minute
    yyyy = delete_at_time.year
    month = delete_at_time.month
    dd = delete_at_time.day
    # minutes hours day month day-of-week year
    cron_exp = "cron({} {} {} {} ? {})".format(mm, hh, dd, month, yyyy)
    return cron_exp

# TTL is in minutes
calculated_expression = deletion_time(60)

print("The Calculated Cron Expression is: ",calculated_expression)