ARG go_builder_image FROM $go_builder_image STOPSIGNAL SIGINT RUN apk add git gcc musl-dev make wget --no-cache && \ mkdir /opt/cross-builder && \ cd /opt/cross-builder && \ for arch in aarch64 x86_64; do \ wget \ https://musl.cc/${arch}-linux-musl-cross.tgz \ -O /opt/cross-builder/${arch}-musl.tgz \ --no-verbose && \ tar zxf ${arch}-musl.tgz -C ./ && \ rm /opt/cross-builder/${arch}-musl.tgz; \ done