buildspec.yml with Client Headers and CloudFront invalidation

buildspec.yml

version: 0.2
phases:
 install:
   commands:
     - echo "install step"
 pre_build:
   commands:
     - echo "pre_build step"
 build:
   commands:
     - aws s3 cp . "s3://<your-static-website-bucket>" --recursive --cache-control 'public, max-age=2628000'
 post_build:
   commands:
     - aws cloudfront create-invalidation --distribution-id <your-distribution-id> --paths '/*'