# Docker file for the LADA database on Debian
#
# build with e.g. `docker build --force-rm=true -t koala/lada_db .',
# then run with e.g.
# `docker run --name lada_db -dp 2345:5432 koala/lada_db:latest'
#
# For easier testing of schema or example data changes, it can be useful to add
# `-v $PWD:/opt/lada_sql/' and run setup-db.sh within the container.
#

FROM debian:jessie
MAINTAINER tom.gottfried@intevation.de

#
# Use utf-8
#
RUN echo \
    "locales locales/locales_to_be_generated multiselect en_US.UTF-8 UTF-8" | \
    debconf-set-selections && \
    echo "locales locales/default_environment_locale select en_US.UTF-8" | \
    debconf-set-selections

RUN apt-get update -y && apt-get install -y locales

ENV LC_ALL en_US.UTF-8

#
# Install packages
#
RUN apt-get update && \
    apt-get install -y curl unzip make gcc
RUN echo "deb http://apt.postgresql.org/pub/repos/apt/ jessie-pgdg main" \
    >> /etc/apt/sources.list
RUN curl https://www.postgresql.org/media/keys/ACCC4CF8.asc | apt-key add -
RUN apt-get update && \
    apt-get install -y --no-install-recommends \
            postgresql-9.5-postgis-2.3 postgresql-9.5-postgis-scripts postgis \
            postgresql-server-dev-9.5 \
            libdbi-perl libdbd-pg-perl # for pgaudit/analyze

#
# Add context as working directory
#
ADD . /opt/lada_sql/
WORKDIR /opt/lada_sql/

#
# Set environment variables
#
ENV PGCONF /etc/postgresql/9.5/main/postgresql.conf
ENV PGDATA /var/lib/postgresql/9.5/main

#
# Install pgaudit
#
# run `git clone https://github.com/pgaudit/pgaudit.git' within context
# before building image!
RUN sed -i '/^USE_PGXS/b;1iUSE_PGXS = yes' pgaudit/Makefile
RUN cd pgaudit && make install
RUN echo "shared_preload_libraries = 'pgaudit'" >> $PGCONF

#
# Use user postgres to run the next commands
#
USER postgres

# XXX: Seems to fail on initdb issued by package installation
# (due to /usr/sbin/policy-rc.d ?).
# See also https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=739276
RUN mkdir /var/run/postgresql/9.5-main.pg_stat_tmp

#
# 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/9.5/main/pg_hba.conf
RUN echo "listen_addresses='*'" >> $PGCONF

#
# Configure logging collector
# (because we use postgres directly in CMD,
# the usual collection from stderr does not work)
#
RUN echo "logging_collector = on" >> $PGCONF
RUN echo "log_directory = '/var/log/postgresql'" >> $PGCONF
#RUN echo "log_filename = 'postgresql-9.5-main.log'" >> $PGCONF
# for pgaudit/analyze
RUN echo "log_filename = '%F'" >> $PGCONF
RUN echo "log_destination = 'csvlog'" >> $PGCONF
RUN echo "log_connections = on" >> $PGCONF

#
# Expose the PostgreSQL port
#
EXPOSE 5432

#
# Create database
#
# Don't mind scary messages like
# 'FATAL: the database system is starting up'.
# It's because of the -w
#
RUN /usr/lib/postgresql/9.5/bin/pg_ctl start -wo "--config_file=$PGCONF" && \
    /opt/lada_sql/setup-db.sh && \
    /usr/lib/postgresql/9.5/bin/pg_ctl stop

#
# Set the default command to run when starting the container
#
CMD ["/usr/lib/postgresql/9.5/bin/postgres", \
     "--config_file=/etc/postgresql/9.5/main/postgresql.conf"]

# To use pgaudit/analyze from within the container:
# cd pgaudit/analyze/bin
# ./pgaudit_analyze /var/log/postgresql/ \
#     --log-file /var/log/postgresql/pgaudit_analyze.log