# syntax=docker/dockerfile:1

FROM alpine:3.23 AS rootfs-stage

ARG TARGETARCH
ARG S6_OVERLAY_VERSION="3.2.2.0"
ARG ROOTFS=/root-out
ARG REL=v3.23
ARG MIRROR=http://dl-cdn.alpinelinux.org/alpine
ARG PACKAGES=alpine-baselayout,alpine-keys,apk-tools,busybox,libc-utils

RUN apk add --no-cache bash xz curl ca-certificates

# map arch
RUN case "${TARGETARCH}" in \
      amd64)  echo "x86_64"  > /arch ;; \
      arm64)  echo "aarch64" > /arch ;; \
      *) echo "unsupported arch" && exit 1 ;; \
    esac

# build rootfs
RUN mkdir -p "${ROOTFS}/etc/apk" && \
    echo "${MIRROR}/${REL}/main" > "${ROOTFS}/etc/apk/repositories" && \
    echo "${MIRROR}/${REL}/community" >> "${ROOTFS}/etc/apk/repositories" && \
    apk --root "${ROOTFS}" --no-cache add ${PACKAGES//,/ } && \
    sed -i 's/^root::/root:!:/' "${ROOTFS}/etc/shadow"

# s6 overlay
RUN ARCH="$(cat /arch)" && \
    curl -fsSL https://github.com/just-containers/s6-overlay/releases/download/v${S6_OVERLAY_VERSION}/s6-overlay-noarch.tar.xz \
      | tar -C "${ROOTFS}" -Jxpf - && \
    curl -fsSL https://github.com/just-containers/s6-overlay/releases/download/v${S6_OVERLAY_VERSION}/s6-overlay-${ARCH}.tar.xz \
      | tar -C "${ROOTFS}" -Jxpf -

# add s6 optional symlinks
ADD https://github.com/just-containers/s6-overlay/releases/download/v${S6_OVERLAY_VERSION}/s6-overlay-symlinks-noarch.tar.xz /tmp
RUN tar -C /root-out -Jxpf /tmp/s6-overlay-symlinks-noarch.tar.xz && unlink /root-out/usr/bin/with-contenv
ADD https://github.com/just-containers/s6-overlay/releases/download/v${S6_OVERLAY_VERSION}/s6-overlay-symlinks-arch.tar.xz /tmp
RUN tar -C /root-out -Jxpf /tmp/s6-overlay-symlinks-arch.tar.xz

# Runtime stage
FROM scratch
COPY --from=rootfs-stage /root-out/ /
ARG BUILD_DATE
ARG VERSION
ARG MODS_VERSION="v3"
ARG PKG_INST_VERSION="v1"
ARG LSIOWN_VERSION="v1"
ARG WITHCONTENV_VERSION="v1"
LABEL build_version="Pi-Farm version:- ${VERSION} Build-date:- ${BUILD_DATE}"
LABEL maintainer="Pi-Farm"

ADD --chmod=755 "https://raw.githubusercontent.com/linuxserver/docker-mods/mod-scripts/docker-mods.${MODS_VERSION}" "/docker-mods"
ADD --chmod=755 "https://raw.githubusercontent.com/linuxserver/docker-mods/mod-scripts/package-install.${PKG_INST_VERSION}" "/etc/s6-overlay/s6-rc.d/init-mods-package-install/run"
ADD --chmod=755 "https://raw.githubusercontent.com/linuxserver/docker-mods/mod-scripts/lsiown.${LSIOWN_VERSION}" "/usr/bin/lsiown"
ADD --chmod=755 "https://raw.githubusercontent.com/linuxserver/docker-mods/mod-scripts/with-contenv.${WITHCONTENV_VERSION}" "/usr/bin/with-contenv"

# environment variables
ENV PS1="$(whoami)@$(hostname):$(pwd)\\$ " \
  HOME="/root" \
  TERM="xterm" \
  S6_CMD_WAIT_FOR_SERVICES_MAXTIME="0" \
  S6_VERBOSITY=1 \
  S6_STAGE2_HOOK=/docker-mods \
  VIRTUAL_ENV=/lsiopy \
  PATH="/lsiopy/bin:$PATH"

RUN \
  echo "**** install runtime packages ****" && \
  apk add --no-cache \
    alpine-release \
    bash \
    ca-certificates \
    catatonit \
    coreutils \
    curl \
    findutils \
    jq \
    netcat-openbsd \
    procps-ng \
    shadow \
    tzdata && \
  echo "**** create abc user and make our folders ****" && \
  groupmod -g 1000 users && \
  useradd -u 911 -U -d /config -s /bin/false abc && \
  usermod -G users abc && \
  mkdir -p \
    /app \
    /config \
    /defaults \
    /lsiopy && \
  echo "**** cleanup ****" && \
  rm -rf \
    /tmp/*

# add local files
COPY root/ /

ENTRYPOINT ["/init"]