Containerfile

# Copyright 2023 The ChromiumOS Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

FROM docker.io/debian:bookworm as builder

RUN echo "\ndeb-src http://deb.debian.org/debian bookworm main non-free-firmware\n" >> /etc/apt/sources.list

RUN apt-get update
RUN apt-get install -y bash-static git meson linux-headers-amd64 wget bison gettext

# Download rust static coreutils
WORKDIR /root
RUN wget https://github.com/uutils/coreutils/releases/download/0.1.0/coreutils-0.1.0-x86_64-unknown-linux-musl.tar.gz -O coreutils.tar.gz
RUN tar -zxvf coreutils.tar.gz

# Download source code and build util-linux
RUN git clone https://github.com/util-linux/util-linux.git
WORKDIR /root/util-linux
RUN git checkout v2.41
RUN apt-get build-dep -y util-linux
RUN meson setup build -D static-programs="losetup, mount, umount" -D build-python=disabled -D cryptsetup=disabled -D build-chfn-chsh=disabled -D build-su=disabled -D build-runuser=disabled
RUN ninja -C build

FROM scratch

# Create /bin directory manually to avoid potential problems caused by implicit directory creation with COPY
COPY --from=builder /root/coreutils-0.1.0-x86_64-unknown-linux-musl/coreutils /coreutils
RUN ["/coreutils", "mkdir", "/bin"]

# Start populating /bin directory with bash and coreutils
COPY --from=builder /bin/bash-static /bin/bash
COPY --from=builder /root/coreutils-0.1.0-x86_64-unknown-linux-musl/coreutils /bin/coreutils

# Link /bin/bash to /bin/sh so podman can accept shell style RUN statements
RUN ["/coreutils", "ln", "-s", "/bin/bash", "/bin/sh"]

# Cleanup initially copied coreutils binary as it now lives in /bin
RUN coreutils rm /coreutils

# Coreutils multirun binary provides following sub-commands
RUN coreutils ln -s /bin/coreutils /bin/arch \
    && coreutils ln -s /bin/coreutils /bin/b2sum \
    && coreutils ln -s /bin/coreutils /bin/b3sum \
    && coreutils ln -s /bin/coreutils /bin/base32 \
    && coreutils ln -s /bin/coreutils /bin/base64 \
    && coreutils ln -s /bin/coreutils /bin/basename \
    && coreutils ln -s /bin/coreutils /bin/basenc \
    && coreutils ln -s /bin/coreutils /bin/cat \
    && coreutils ln -s /bin/coreutils /bin/chgrp \
    && coreutils ln -s /bin/coreutils /bin/chmod \
    && coreutils ln -s /bin/coreutils /bin/chown \
    && coreutils ln -s /bin/coreutils /bin/chroot \
    && coreutils ln -s /bin/coreutils /bin/cksum \
    && coreutils ln -s /bin/coreutils /bin/comm \
    && coreutils ln -s /bin/coreutils /bin/cp \
    && coreutils ln -s /bin/coreutils /bin/csplit \
    && coreutils ln -s /bin/coreutils /bin/cut \
    && coreutils ln -s /bin/coreutils /bin/date \
    && coreutils ln -s /bin/coreutils /bin/dd \
    && coreutils ln -s /bin/coreutils /bin/df \
    && coreutils ln -s /bin/coreutils /bin/dir \
    && coreutils ln -s /bin/coreutils /bin/dircolors \
    && coreutils ln -s /bin/coreutils /bin/dirname \
    && coreutils ln -s /bin/coreutils /bin/du \
    && coreutils ln -s /bin/coreutils /bin/echo \
    && coreutils ln -s /bin/coreutils /bin/env \
    && coreutils ln -s /bin/coreutils /bin/expand \
    && coreutils ln -s /bin/coreutils /bin/expr \
    && coreutils ln -s /bin/coreutils /bin/factor \
    && coreutils ln -s /bin/coreutils /bin/false \
    && coreutils ln -s /bin/coreutils /bin/fmt \
    && coreutils ln -s /bin/coreutils /bin/fold \
    && coreutils ln -s /bin/coreutils /bin/groups \
    && coreutils ln -s /bin/coreutils /bin/hashsum \
    && coreutils ln -s /bin/coreutils /bin/head \
    && coreutils ln -s /bin/coreutils /bin/hostid \
    && coreutils ln -s /bin/coreutils /bin/hostname \
    && coreutils ln -s /bin/coreutils /bin/id \
    && coreutils ln -s /bin/coreutils /bin/install \
    && coreutils ln -s /bin/coreutils /bin/join \
    && coreutils ln -s /bin/coreutils /bin/kill \
    && coreutils ln -s /bin/coreutils /bin/link \
    && coreutils ln -s /bin/coreutils /bin/ln \
    && coreutils ln -s /bin/coreutils /bin/logname \
    && coreutils ln -s /bin/coreutils /bin/ls \
    && coreutils ln -s /bin/coreutils /bin/md5sum \
    && coreutils ln -s /bin/coreutils /bin/mkdir \
    && coreutils ln -s /bin/coreutils /bin/mkfifo \
    && coreutils ln -s /bin/coreutils /bin/mknod \
    && coreutils ln -s /bin/coreutils /bin/mktemp \
    && coreutils ln -s /bin/coreutils /bin/more \
    && coreutils ln -s /bin/coreutils /bin/mv \
    && coreutils ln -s /bin/coreutils /bin/nice \
    && coreutils ln -s /bin/coreutils /bin/nl \
    && coreutils ln -s /bin/coreutils /bin/nohup \
    && coreutils ln -s /bin/coreutils /bin/nproc \
    && coreutils ln -s /bin/coreutils /bin/numfmt \
    && coreutils ln -s /bin/coreutils /bin/od \
    && coreutils ln -s /bin/coreutils /bin/paste \
    && coreutils ln -s /bin/coreutils /bin/pathchk \
    && coreutils ln -s /bin/coreutils /bin/pr \
    && coreutils ln -s /bin/coreutils /bin/printenv \
    && coreutils ln -s /bin/coreutils /bin/printf \
    && coreutils ln -s /bin/coreutils /bin/ptx \
    && coreutils ln -s /bin/coreutils /bin/pwd \
    && coreutils ln -s /bin/coreutils /bin/readlink \
    && coreutils ln -s /bin/coreutils /bin/realpath \
    && coreutils ln -s /bin/coreutils /bin/relpath \
    && coreutils ln -s /bin/coreutils /bin/rm \
    && coreutils ln -s /bin/coreutils /bin/rmdir \
    && coreutils ln -s /bin/coreutils /bin/seq \
    && coreutils ln -s /bin/coreutils /bin/sha1sum \
    && coreutils ln -s /bin/coreutils /bin/sha224sum \
    && coreutils ln -s /bin/coreutils /bin/sha256sum \
    && coreutils ln -s /bin/coreutils /bin/sha3-224sum \
    && coreutils ln -s /bin/coreutils /bin/sha3-256sum \
    && coreutils ln -s /bin/coreutils /bin/sha3-384sum \
    && coreutils ln -s /bin/coreutils /bin/sha3-512sum \
    && coreutils ln -s /bin/coreutils /bin/sha384sum \
    && coreutils ln -s /bin/coreutils /bin/sha3sum \
    && coreutils ln -s /bin/coreutils /bin/sha512sum \
    && coreutils ln -s /bin/coreutils /bin/shake128sum \
    && coreutils ln -s /bin/coreutils /bin/shake256sum \
    && coreutils ln -s /bin/coreutils /bin/shred \
    && coreutils ln -s /bin/coreutils /bin/shuf \
    && coreutils ln -s /bin/coreutils /bin/sleep \
    && coreutils ln -s /bin/coreutils /bin/sort \
    && coreutils ln -s /bin/coreutils /bin/split \
    && coreutils ln -s /bin/coreutils /bin/stat \
    && coreutils ln -s /bin/coreutils /bin/stty \
    && coreutils ln -s /bin/coreutils /bin/sum \
    && coreutils ln -s /bin/coreutils /bin/sync \
    && coreutils ln -s /bin/coreutils /bin/tac \
    && coreutils ln -s /bin/coreutils /bin/tail \
    && coreutils ln -s /bin/coreutils /bin/tee \
    && coreutils ln -s /bin/coreutils /bin/test \
    && coreutils ln -s /bin/coreutils /bin/timeout \
    && coreutils ln -s /bin/coreutils /bin/touch \
    && coreutils ln -s /bin/coreutils /bin/tr \
    && coreutils ln -s /bin/coreutils /bin/true \
    && coreutils ln -s /bin/coreutils /bin/truncate \
    && coreutils ln -s /bin/coreutils /bin/tsort \
    && coreutils ln -s /bin/coreutils /bin/tty \
    && coreutils ln -s /bin/coreutils /bin/uname \
    && coreutils ln -s /bin/coreutils /bin/unexpand \
    && coreutils ln -s /bin/coreutils /bin/uniq \
    && coreutils ln -s /bin/coreutils /bin/unlink \
    && coreutils ln -s /bin/coreutils /bin/vdir \
    && coreutils ln -s /bin/coreutils /bin/wc \
    && coreutils ln -s /bin/coreutils /bin/whoami \
    && coreutils ln -s /bin/coreutils /bin/yes

# Install statically linked util-linux tools
COPY --from=builder /root/util-linux/build/mount.static /bin/mount
COPY --from=builder /root/util-linux/build/umount.static /bin/umount
COPY --from=builder /root/util-linux/build/losetup.static /bin/losetup

# Install delegate
COPY ./delegate /bin/delegate

# Populate root directory with other empty folders
WORKDIR /
RUN mkdir -p usr dev etc lib lib64 mnt proc root sbin sys newroot; exit 0

COPY ./init.sh /init

RUN chmod +x /init

CMD /bin/bash