対応可能一覧を確認

docker buildx ls

build環境の用意

docker buildx create --name <buildername>
docker buildx use <buildername>
docker buildx inspect --bootstrap

build

docker buildx build --platform linux/arm64,linux/amd64,linux/386,linux/s390x,linux/arm/v7,linux/arm/v6 -t <username>/<image name>:<version> --push .

build環境の削除

docker buildx use default
docker buildx inspect --bootstrap
docker buildx stop <buildername>
docker buildx rm <buildername>