content: #
  # example Dockerfile for http://docs.docker.com/examples/postgresql_service/
  #
  
  FROM ubuntu
  MAINTAINER SvenDowideit@docker.com
  
  # Add the PostgreSQL PGP key to verify their Debian packages.
  # It should be the same key as https://www.postgresql.org/media/keys/ACCC4CF8.asc 
  RUN apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys B97B0AFCAA1A47F044F244A07FCC7D46ACCC4CF8
  
  # Add PostgreSQL's repository. It contains the most recent stable release
  #     of PostgreSQL, ``9.3``.
  RUN echo "deb http://apt.postgresql.org/pub/repos/apt/ precise-pgdg main" > /etc/apt/sources.list.d/pgdg.list
  
  # Install ``python-software-properties``, ``software-properties-common`` and PostgreSQL 9.3
  #  There are some warnings (in red) that show up during the build. You can hide
  #  them by prefixing each apt-get statement with DEBIAN_FRONTEND=noninteractive
  RUN apt-get update && apt-get install -y python-software-properties software-properties-common postgresql-9.3 postgresql-client-9.3 postgresql-contrib-9.3
  
  # Note: The official Debian and Ubuntu images automatically ``apt-get clean``
  # after each ``apt-get``
  
  # Run the rest of the commands as the ``postgres`` user created by the ``postgres-9.3`` package when it was ``apt-get installed``
  USER postgres
  
  # Create a PostgreSQL role named ``docker`` with ``docker`` as the password and
  # then create a database `docker` owned by the ``docker`` role.
  # Note: here we use ``&&\`` to run commands one after the other - the ``\``
  #       allows the RUN command to span multiple lines.
  RUN    /etc/init.d/postgresql start &&\
      psql --command "CREATE USER docker WITH SUPERUSER PASSWORD 'docker';" &&\
      createdb -O docker docker
  
  # Adjust PostgreSQL configuration so that remote connections to the
  # database are possible. 
  RUN echo "host all  all    0.0.0.0/0  md5" >> /etc/postgresql/9.3/main/pg_hba.conf
  
  # And add ``listen_addresses`` to ``/etc/postgresql/9.3/main/postgresql.conf``
  RUN echo "listen_addresses='*'" >> /etc/postgresql/9.3/main/postgresql.conf
  
  # Expose the PostgreSQL port
  EXPOSE 5432
  
  # Add VOLUMEs to allow backup of config, logs and databases
  VOLUME	["/etc/postgresql", "/var/log/postgresql", "/var/lib/postgresql"]
  
  # Set the default command to run when starting the container
  CMD ["/usr/lib/postgresql/9.3/bin/postgres", "-D", "/var/lib/postgresql/9.3/main", "-c", "config_file=/etc/postgresql/9.3/main/postgresql.conf"]
  