> a burst of incoming traffic can share warm environments instead of mapping each request to a new one
But cold starts could still occur, especially in a low-traffic environment where requests come in seldomly?
Yes.
> Lambda scales down to zero environments when there is no traffic. The next request after that starts a new environment (a cold start).
https://docs.aws.amazon.com/lambda/latest/dg/web-functions-s...
Presumably it can be combined with SnapStart
There was also this a week ago, maybe you can combine this with containers? https://aws.amazon.com/blogs/compute/get-started-with-aws-la...