FROM debian:jessie-slim as builder ARG ARCH=x86_64 ARG PACKAGES="core/glibc" ARG DEBIAN_FRONTEND=noninteractive ARG BUSYB_VER=1.26.2 ARG SU_EXEC_VER=v0.2 ARG TINI_VER=v0.14.0 WORKDIR /output #Set up our dependencies, configure the output filesystem a bit RUN apt-get update -qy && \ apt-get install -qy curl build-essential && \ mkdir -p usr/bin usr/lib dev proc root etc && \ ln -sv usr/bin bin && \ ln -sv usr/bin sbin && \ ln -sv usr/lib lib && \ ln -sv lib lib64 # Removing this :P RUN for pkg in $PACKAGES; do \ repo=$(echo $pkg | cut -d/ -f1); \ name=$(echo $pkg | cut -d/ -f2); \ curl -L https://archlinux.org/packages/$repo/$ARCH/$name/download \ | tar xJ -C . ; \ done && \ rm -f .BUILDINFO .INSTALL .PKGINFO .MTREE && \ rm -rf usr/share usr/include lib/*.a lib/*.o lib/gconv \ bin/ldconfig bin/sln bin/localedef bin/nscd # Pull busybox and some other utilities RUN curl -L https://busybox.net/downloads/binaries/$BUSYB_VER-defconfig-multiarch/busybox-$ARCH > /output/usr/bin/busybox && \ curl -L https://github.com/javabean/su-exec/releases/download/${SU_EXEC_VER}/su-exec.amd64 > /output/sbin/su-exec && \ curl -L https://github.com/krallin/tini/releases/download/${TINI_VER}/tini-amd64 > /output/bin/tini && \ chmod +x /output/bin/busybox /output/bin/su-exec /output/sbin/tini WORKDIR /tmp # Build and install openssl ARG DESTDIR=/output/libressl RUN curl -L https://www.openssl.org/source/openssl-1.1.0e.tar.gz | \ tar xz -C /tmp --strip-components=1 && \ ./config --prefix=/output && \ make install_sw && \ rm /output/lib/*.a && \ rm -r /output/include # ============= FROM scratch WORKDIR / COPY --from=builder /output/ / # Needed cos we dont have /bin/sh yet RUN ["/bin/busybox", "--install", "-s", "/bin"] CMD ["sh"]