AI BriefingHow to Integrate a CDN with Next.js and Slim Down Docker Images
Key point
This introduces CDN integration methods and Docker image lightweighting strategies that boost performance when running Next.js directly on AWS ECS.
Details
We share two optimization tips that can be applied when operating Next.js directly on AWS ECS or EKS, rather than a managed service like Vercel.
First, CDN (e.g. AWS CloudFront) integration. By using the assetPrefix option in next.config.js to configure the static file path, the Next.js server can focus solely on SSR (Server-Side Rendering) and image optimization. This provides benefits such as fast file delivery at edge points, improved compression performance, and utilization of the latest HTTP protocols.
Second, Docker image lightweighting. Using the output: standalone option generates a standalone folder containing only the files needed at build time. Building the image using this can reduce the existing image size of around 180MB down to 70MB, which leads to faster container deployment.
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