Question: How can I build a multi-arch image distributed

[njucjc]

I want to build images of different architectures on hosts with different architectures, and then finally combine them into a multi-architecture image. Does BuildKit have a similar solution?

[AkihiroSuda]

Like this:

docker buildx create --name remote --use

docker buildx create --name remote \
  --append ssh://me@my-arm-instance

docker buildx build \
  --push -t example.com/hello:latest \
  --platform=linux/amd64,linux/arm64 .

https://medium.com/nttlabs/buildx-multiarch-2c6c2df00ca2

[njucjc]

Thanks, it seems to only use ARM machines to build multi-architecture images. Is there any performance improvement compared to directly using AMD machine machines to build multi-architecture images? If I misunderstand, please correct me.

My initial intention is to use an AMD machine to build AMD images and an ARM machine to build ARM images, and then combine them into a multi-architecture image.

[AkihiroSuda]

The commands uses an AMD machine to build AMD images and an ARM machine to build ARM images, and then combine them into a multi-architecture image.

Benchmark result can be found in my blog URL above.

[njucjc]

I got it！