Within create-react-app, the local dev server does indeed use Webpack. For deploying into prod, the recommend approach is to use the `build` script which will output the static files to be deployed to a host e.g. S3 or Zeit Now.

If you require server-side rendering, Next.js can be run just as any other Node server so will be fine in Docker. Alternatively, Next has support for running in AWS Lambda/Lambda@Edge do you don't need to have infra running 24/7.