A lambda function that async summarizes every object in every bucket

YouTube AWS Lambda Walkthrough

It requires you to deploy with a role that can access S3. Then do make invoke

{
  "req_id": "46ce6303-f0f3-48cd-9d80-118538f41458",
  "msg": "Event Payload size.",
  "size": "Total size of all buckets: 114.20 GB"
}

Docker version

If you want to deploy via Docker do the following command:

https://github.com/awslabs/aws-lambda-rust-runtime#25-docker

# build and package deploy-ready artifact
$ docker run --rm \
    -v ${PWD}:/code \
    -v ${HOME}/.cargo/registry:/root/.cargo/registry \
    -v ${HOME}/.cargo/git:/root/.cargo/git \
    rustserverless/lambda-rust