1、编写 dockerfile
FROM alpine
RUN touch ttt
2、构建
docker buildx build --platform arm64 -t hausen1012/test --push .
前提：需要基础镜像也有 arm64 的镜像
3、运行
docker run -it --rm -v /usr/bin/qemu-aarch64-static:/usr/bin/qemu-aarch64-static hausen1012/test sh
如：
FROM mysql:8.0
RUN mkdir /ttt
docker buildx build --platform arm64 -t hausen1012/test --push .
则会构建失败，提示：
error: failed to solve: rpc error: code = Unknown desc = mysql:8.0: no match for platform in manifest sha256:a0805d37d4d298bd61e0dfa61f0ddf6f4680b453fa25d7aad420485a62417eab:
FROM mysql:8-oracle
RUN touch ttt
docker buildx build --platform arm64 -t hausen1012/test --push .
则能构建成功