I can confirm AWS Lambda still has this problem. A dirty solution could be to time-trigger your function every x seconds to keep the container alive. For exampl

I can confirm AWS Lambda still has this problem. A dirty solution could be to time-trigger your function every x seconds to keep the container alive. For example, doing that every 10 seconds would produce 259200 request per 30-days month, so 0,05 USD per month for this in AWS.