Install

npm install serverless -g

npm install

Modify servelrss.yml Update the environment section with your values and region: to match where your WAF is

  environment:
    WebACL_ID: 2c39d8e7-1b8c-4a3d-9f03-ebf123274e9d
    MAX_REQUESTS_PER_IP: 200

MAX_REQUESTS_PER_IP: This value is per 5 min as logs get generated every 5 min.

Say X is that required maximum load for the application 0 < Light Load < X/2 < Regular Load < 2X/3 < High Load < X <= Heavy Load

Deployment

npm install --only prod
AWS_PROFILE=YOUR_AWS_PROFILE  sls deploy
npm install

AWS Config

Set up a trigger for this function, from S3 bucket where ALB logs are stored. Dont forget to user Prefix if its stored in a "sub directory" of a bucket

Testing

To see how this reacts to the load, use siege