Dockerfile

# Pgpool2.

FROM alpine:3.5

ENV PGPOOL_VERSION 3.6.1

ENV PG_VERSION 9.6.1-r0

ENV LANG en_US.utf8
    
RUN apk --update --no-cache add libpq=${PG_VERSION} postgresql-dev=${PG_VERSION} postgresql-client=${PG_VERSION} \
                                linux-headers gcc make libgcc g++ \
                                libffi-dev python python-dev py2-pip libffi-dev && \
    cd /tmp && \ 
    wget http://www.pgpool.net/mediawiki/images/pgpool-II-${PGPOOL_VERSION}.tar.gz -O - | tar -xz && \
    chown root:root -R /tmp/pgpool-II-${PGPOOL_VERSION} && \
    cd /tmp/pgpool-II-${PGPOOL_VERSION} && \
    ./configure --prefix=/usr \
                --sysconfdir=/etc \
                --mandir=/usr/share/man \
                --infodir=/usr/share/info && \
    make && \
    make install && \
    rm -rf /tmp/pgpool-II-${PGPOOL_VERSION} && \
    apk del postgresql-dev linux-headers gcc make libgcc g++

RUN pip install Jinja2

RUN mkdir /etc/pgpool2 /var/run/pgpool /var/log/pgpool /var/run/postgresql /var/log/postgresql/ && \
    chown postgres /etc/pgpool2 /var/run/pgpool /var/log/pgpool /var/run/postgresql /var/log/postgresql

# Post Install Configuration.
ADD bin/configure-pgpool2 /usr/bin/configure-pgpool2
RUN chmod +x /usr/bin/configure-pgpool2
ADD conf/pcp.conf.template /usr/share/pgpool2/pcp.conf.template
ADD conf/pgpool.conf.template /usr/share/pgpool2/pgpool.conf.template

# Start the container.
COPY docker-entrypoint.sh /
RUN chmod +x /docker-entrypoint.sh
ENTRYPOINT ["/docker-entrypoint.sh"]

EXPOSE 9999 9898

CMD ["pgpool","-n", "-f", "/etc/pgpool2/pgpool.conf", "-F", "/etc/pgpool2/pcp.conf"]