Dockerfile

# PostgreSQL

FROM ubuntu:utopic
MAINTAINER David Zumbrunnen <zumbrunnen@gmail.com>

ENV DEBIAN_FRONTEND noninteractive

RUN apt-get update && apt-get -y install language-pack-en python-software-properties \
      software-properties-common postgresql-common postgresql-9.4 postgresql-client-9.4 \
      postgresql-contrib-9.4 \
    && rm -rf /var/lib/apt/lists/* \
    && localedef -i en_US -c -f UTF-8 -A /usr/share/locale/locale.alias en_US.UTF-8

ENV LANG en_US.utf8

USER postgres
RUN  pg_dropcluster --stop 9.4 main && \
      pg_createcluster --start -e UTF-8 9.4 main && \
      psql --command "CREATE USER docker WITH SUPERUSER PASSWORD 'docker';" && \
      createdb -O docker docker && \
      /usr/lib/postgresql/9.4/bin/pg_ctl stop -D /var/lib/postgresql/9.4/main

ADD postgresql.conf /etc/postgresql/9.4/main/postgresql.conf
ADD pg_hba.conf /etc/postgresql/9.4/main/pg_hba.conf

VOLUME ["/etc/postgresql", "/var/log/postgresql", "/var/lib/postgresql"]
EXPOSE 5432

CMD ["/usr/lib/postgresql/9.4/bin/postgres", "-D", "/var/lib/postgresql/9.4/main", "-c", "config_file=/etc/postgresql/9.4/main/postgresql.conf"]