kubesphere/docs/build-multiarch-images.md

build mulit-arch image with docker buildx

set up env for docker buildx

run follow commands

docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
docker buildx rm arm64builder
docker buildx create --name arm64builder
docker buildx use arm64builder
docker buildx inspect --bootstrap

build images

If build multi platform one time, can not use --load param, You must have privileges to push images to $REPO

docker buildx build --platform="linux/amd64,linux/arm64" . -t $REPO/ks-apiserver:$TAG -f build-multiarch/Dockerfile --target=ks-apiserver --push
docker buildx build --platform="linux/amd64,linux/arm64" . -t $REPO/ks-controller-manager:$TAG -f build-multiarch/Dockerfile --target=ks-controller-manager --push

Also you can build a image for local build with only one arch

docker buildx build --platform="linux/arm64" . -t "ks-apiserver:arm64" -f build-multiarch/Dockerfile --target=ks-apiserver --load
docker buildx build --platform="linux/amd64" . -t "ks-apiserver:amd64" -f build-multiarch/Dockerfile --target=ks-apiserver --load