What is the purpose of docker manifest and multi-platform image builds?

Question

Docker Fundamentals — Hard

What is the purpose of docker manifest and multi-platform image builds?

Accepted Answer

The purpose of docker manifest and multi-platform image builds is to create a manifest list (fat manifest) that indexes platform-specific image variants, allowing Docker to automatically select the correct variant for your platform when pulling an image. This enables multi-platform builds using docker buildx to push all variants under a single tag.