Dockerfile

ARG BASE_IMAGE_REPO=debian
ARG BASE_IMAGE_VER=bullseye-slim

FROM ${BASE_IMAGE_REPO}:${BASE_IMAGE_VER}

ARG BUILD_UID=499
ARG BUILD_GID=499
ARG KEEP_BUILD_ARTIFACTS=FALSE
ARG TARGET_DIR=NON_EXISTENT_FILE
ARG BUILD_ARCH=armhf

COPY apt-ci-hardening /etc/apt/apt.conf.d/99-ci-hardening
COPY --chmod=0755 retry /usr/local/bin/retry
COPY --chmod=0755 apt_update /usr/local/bin/apt_update
COPY --chmod=0755 apt_install /usr/local/bin/apt_install
COPY --chmod=0755 apt_satisfy /usr/local/bin/apt_satisfy
RUN apt_update && apt_install -y curl wget iproute2 netcat-openbsd
RUN wget -O /usr/local/bin/apt_check https://raw.githubusercontent.com/EffectiveRange/infrastructure-configuration/refs/heads/main/aptrepo/repository/check_repo.sh \
    && chmod +x /usr/local/bin/apt_check
RUN apt_check

# Checks if the 'crossbuilder' user exists. 
RUN if ! id crossbuilder 2>/dev/null;then \
    groupadd -g $BUILD_GID crossbuilder && \
    useradd -d /home/crossbuilder -m -g $BUILD_GID -u $BUILD_UID -s /bin/bash crossbuilder \
    ;fi
COPY --chown=crossbuilder:crossbuilder ./build_tools /home/crossbuilder/build_tools
COPY --chown=crossbuilder:crossbuilder ./scripts /home/crossbuilder/scripts
COPY --chown=crossbuilder:crossbuilder $TARGET_DIR /home/crossbuilder/target
RUN touch /home/crossbuilder/target.$(basename $TARGET_DIR) && chmod 777 /home/crossbuilder/

# Non-interactive configuration of tzdata
ENV DEBIAN_FRONTEND=noninteractive
ENV DEBCONF_NONINTERACTIVE_SEEN=true
RUN { echo 'tzdata tzdata/Areas select Etc'; echo 'tzdata tzdata/Zones/Etc select UTC'; } | debconf-set-selections

RUN /bin/bash  -o pipefail -c " KEEP_BUILD_ARTIFACTS=$KEEP_BUILD_ARTIFACTS /home/crossbuilder/scripts/build_all $BUILD_ARCH 2>&1 | tee /tmp/build.log"

CMD ["/bin/bash"]