Dockerfile

FROM debian:bullseye-slim

ARG DEBIAN_VERSION
ARG DEBIAN_FRONTEND=noninteractive 
ARG DEBCONF_NONINTERACTIVE_SEEN=true
ARG S6_VERSION=v2.2.0.3

LABEL org.opencontainers.image.created=$BUILD_DATE \
    org.opencontainers.image.title="samba-ldap" \
    org.opencontainers.image.description="Debian bullseyes based docker image for SAMBA with ldap authentication" \
    org.opencontainers.image.revision=$VCS_REF \
    org.opencontainers.image.source="https://github.com/guillaumedsde/samba-ldap" \
    org.opencontainers.image.authors="guillaumedsde" \
    org.opencontainers.image.vendor="guillaumedsde"

ENV S6_BEHAVIOUR_IF_STAGE2_FAILS=2 \
  SAMBA_CONFIG=/etc/samba/smb.conf \
  NSLCD_CONFIG=/etc/nslcd.conf

RUN apt-get update \
  && apt-get install -y --no-install-recommends \
  samba \
  libnss-ldapd \
  wget \
  samba-vfs-modules\
  debconf-utils \
  && ARCH="$(uname -m)" \
  && if [ "${ARCH}" = "x86_64" ]; then S6_ARCH=amd64; \
  elif [ "${ARCH}" = "i386" ]; then S6_ARCH=X86; \
  elif echo "${ARCH}" | grep -E -q "armv6|armv7"; then S6_ARCH=arm; \
  else S6_ARCH="${ARCH}"; \
  fi \
  && echo using architecture "${S6_ARCH}" for S6 Overlay \
  && wget -O "s6.tgz" "https://github.com/just-containers/s6-overlay/releases/download/${S6_VERSION}/s6-overlay-${S6_ARCH}.tar.gz" \
  && tar xzf "s6.tgz" -C / \
  && echo libnss-ldapd libnss-ldapd/nsswitch multiselect passwd, group, shadow | debconf-set-selections -v \
  && echo libnss-ldapd libnss-ldapd/clean_nsswitch boolean true | debconf-set-selections -v \
  && DEBIAN_FRONTEND=noninteractive dpkg-reconfigure libnss-ldapd \
  && rm "s6.tgz" \
  && apt-get remove --purge -y wget debconf-utils \
  && apt-get --purge -y autoremove \
  && apt-get clean \
  && rm -rf "/var/lib/apt/lists/*" \
  && rm "${SAMBA_CONFIG}" \
  && rm "${NSLCD_CONFIG}"

COPY rootfs/ /

EXPOSE 139 445

ENTRYPOINT ["/init"]