Optimizing multi-platform Docker builds (amd64 & arm64) with registry Cache

In modern CI/CD pipelines, supporting multiple architectures for Docker image builds, specifically amd64 and arm64, is crucial. This ensures compatibility for your team, whether they're on Apple silicon or Intel machines, and aligns with your production infrastructure.

If you don’t have access to Github Runners or Machines in your CI/CD with both architectures, you might be using emulation, like QEMU and it can be quite slow to build an arm64 image on an amd64 machine.

That’s why you can optimize your builds and use cache to make it faster.

This article details a robust 3-step workflow for achieving efficient multiplatform builds and covers best practices for frontend (FE) projects where static assets should be built only once for amd64.