FROM alpine:3.15 as rootfs-stage

# environment
ENV REL=focal
ENV ARCH=amd64
# install packages
RUN \
  apk add --no-cache \
    bash \
    curl \
    tzdata \
    xz

# grab base tarball
RUN \
  mkdir /root-out && \
  curl -o \
    /rootfs.tar.gz -L \
    https://partner-images.canonical.com/core/${REL}/current/ubuntu-${REL}-core-cloudimg-${ARCH}-root.tar.gz && \
  tar xf \
    /rootfs.tar.gz -C \
    /root-out

# Runtime stage
FROM scratch
COPY --from=rootfs-stage /root-out/ /
ARG BUILD_DATE
ARG VERSION
LABEL build_version="Linuxserver.io version:- ${VERSION} Build-date:- ${BUILD_DATE}"
LABEL maintainer="TheLamer"

# set version for s6 overlay
ARG OVERLAY_VERSION="v2.2.0.3"
ARG OVERLAY_ARCH="amd64"

# add s6 overlay
ADD https://github.com/just-containers/s6-overlay/releases/download/${OVERLAY_VERSION}/s6-overlay-${OVERLAY_ARCH}-installer /tmp/
RUN chmod +x /tmp/s6-overlay-${OVERLAY_ARCH}-installer && /tmp/s6-overlay-${OVERLAY_ARCH}-installer / && rm /tmp/s6-overlay-${OVERLAY_ARCH}-installer
COPY patch/ /tmp/patch

# set environment variables
ARG DEBIAN_FRONTEND="noninteractive"
ENV HOME="/root" \
LANGUAGE="en_US.UTF-8" \
LANG="en_US.UTF-8" \
TERM="xterm"

# copy sources
COPY sources.list /etc/apt/

RUN \
  echo "**** Ripped from Ubuntu Docker Logic ****" && \
  set -xe && \
  echo '#!/bin/sh' \
    > /usr/sbin/policy-rc.d && \
  echo 'exit 101' \
    >> /usr/sbin/policy-rc.d && \
  chmod +x \
    /usr/sbin/policy-rc.d && \
  dpkg-divert --local --rename --add /sbin/initctl && \
  cp -a \
    /usr/sbin/policy-rc.d \
    /sbin/initctl && \
  sed -i \
    's/^exit.*/exit 0/' \
    /sbin/initctl && \
  echo 'force-unsafe-io' \
    > /etc/dpkg/dpkg.cfg.d/docker-apt-speedup && \
  echo 'DPkg::Post-Invoke { "rm -f /var/cache/apt/archives/*.deb /var/cache/apt/archives/partial/*.deb /var/cache/apt/*.bin || true"; };' \
    > /etc/apt/apt.conf.d/docker-clean && \
  echo 'APT::Update::Post-Invoke { "rm -f /var/cache/apt/archives/*.deb /var/cache/apt/archives/partial/*.deb /var/cache/apt/*.bin || true"; };' \
    >> /etc/apt/apt.conf.d/docker-clean && \
  echo 'Dir::Cache::pkgcache ""; Dir::Cache::srcpkgcache "";' \
    >> /etc/apt/apt.conf.d/docker-clean && \
  echo 'Acquire::Languages "none";' \
    > /etc/apt/apt.conf.d/docker-no-languages && \
  echo 'Acquire::GzipIndexes "true"; Acquire::CompressionTypes::Order:: "gz";' \
    > /etc/apt/apt.conf.d/docker-gzip-indexes && \
  echo 'Apt::AutoRemove::SuggestsImportant "false";' \
    > /etc/apt/apt.conf.d/docker-autoremove-suggests && \
  mkdir -p /run/systemd && \
  echo 'docker' \
    > /run/systemd/container && \
  echo "**** install apt-utils and locales ****" && \
  apt-get update && \
  apt-get install -y \
    apt-utils \
    locales && \
  echo "**** install packages ****" && \
  apt-get install -y \
    curl \
    gnupg \
    patch \
    tzdata && \
  echo "**** generate locale ****" && \
  locale-gen en_US.UTF-8 && \
  echo "**** create abc user and make our folders ****" && \
  useradd -u 911 -U -d /config -s /bin/false abc && \
  usermod -G users abc && \
  mkdir -p \
    /app \
    /config \
    /defaults && \
  mv /usr/bin/with-contenv /usr/bin/with-contenvb && \
  patch -u /etc/s6/init/init-stage2 -i /tmp/patch/etc/s6/init/init-stage2.patch && \
  echo "**** cleanup ****" && \
  apt-get remove -y patch && \
  apt-get autoremove && \
  apt-get clean && \
  rm -rf \
    /tmp/* \
    /var/lib/apt/lists/* \
    /var/tmp/*

# add local files
COPY root/ /

ENTRYPOINT ["/init"]
