foo.dockerfile

FROM --platform=$BUILDPLATFORM debian:10 AS build
RUN apt-get update && \
  apt-get install -y curl gcc make
RUN curl -o /cross.sh https://raw.githubusercontent.com/tonistiigi/binfmt/18c3d40ae2e3485e4de5b453e8460d6872b24d6b/binfmt/scripts/cross.sh && chmod +x /cross.sh
RUN curl https://ftp.gnu.org/gnu/hello/hello-2.10.tar.gz | tar xz
WORKDIR hello-2.10
ARG TARGETPLATFORM
RUN /cross.sh install gcc | sh
RUN LDFLAGS=-static \
  ./configure --host $(/cross.sh cross-prefix) && \
  make && \
  mkdir -p /out && \
  mv hello /out
FROM scratch
COPY --from=build /out/hello /hello
ENTRYPOINT ["/hello"]