FROM buildpack-deps:bullseye

ARG SRV_UID="1000"
ARG SRV_GID="100"
ARG SRV_VERSION="0"

ENV SRV_UID $SRV_UID
ENV SRV_GID $SRV_GID
ENV SRV_VERSION $SRV_VERSION

ENV DEBIAN_FRONTEND "noninteractive"
ENV PGDATA "/pgdata"

# explicitly set user/group IDs
RUN if [ -z "$( getent group $SRV_GID )" ] ; then groupadd -r postgres --gid=$SRV_GID ; fi && \
  useradd -r -g $SRV_GID --uid=$SRV_UID --home-dir=/var/lib/postgresql --shell=/bin/bash postgres && \
  mkdir -p /pgdata && chown -R $SRV_UID:$SRV_GID /pgdata && \
  apt-get update -y && apt-get install -y lsb-release && \
  ( curl https://www.postgresql.org/media/keys/ACCC4CF8.asc | gpg --dearmor > /etc/apt/trusted.gpg.d/apt.postgresql.org.gpg ) && \
  ( echo "deb http://apt.postgresql.org/pub/repos/apt $(lsb_release -cs)-pgdg main" > /etc/apt/sources.list.d/pgdg.list ) && \
  apt-get update -y && mkdir -p /docker-entrypoint-initdb.d && \
  apt-get install -y postgresql-14 postgresql-14-pglogical && \
  apt-get clean && rm -rf /var/lib/apt/lists/*

ENV PATH="/usr/lib/postgresql/14/bin:$PATH"

COPY docker-entrypoint.sh /usr/local/bin/

USER $SRV_UID:$SRV_GID

RUN ln -s /pgdata/.bash_history $HOME/.bash_history

VOLUME /pgdata

WORKDIR /pgdata

ENTRYPOINT ["docker-entrypoint.sh"]

STOPSIGNAL SIGINT

EXPOSE 5432

CMD ["postgres"]

HEALTHCHECK --interval=30s --timeout=3s --retries=4 \
  CMD pg_isready -U ${POSTGRES_USER:-postgres}