Producing multi-architecture repos on hub.docker.com

For this guild, I’ll be using an AMD64 and ARM64 architecture for a project named my-project. I’ll be using the hub.docker username: red.

1. Create repos for each target architecture

Create the images with the tag names:

• red/my-project-amd64
• red/my-project-arm64

2. Build the images locally

AMD64

docker build \
 --tag red/my-project-amd64:latest \
 --platform linux/amd64 .

ARM64

docker build \
 --tag red/my-project-arm64:latest \
 --platform linux/arm64/v8 .

3. Push the images

AMD64

docker push red/my-project-amd64:latest

ARM64

docker push red/my-project-arm64:latest

4. Create manifest

docker manifest create red/my-project:latest \
    red/my-project-arm64:latest \
    red/my-project-amd64:latest

5. Push manifest

docker manifest push red/my-project:latest