#!/bin/sh

SOURCE_DIR=$(realpath $(dirname "${0}"))/postgres

# Build Docker container
docker build -t postgres ${SOURCE_DIR}

# Create Postgres instance
mkdir /srv/postgres
chown -R 5432:5432 /srv/postgres
chmod 700 /srv/postgres
docker run --rm --name postgres -h postgres -v /srv/postgres:/var/lib/postgresql postgres initdb -D /var/lib/postgresql

# Configure Postgres
cp ${SOURCE_DIR}/srv/postgres/postgresql.conf /srv/postgres/postgresql.conf
cp ${SOURCE_DIR}/srv/postgres/pg_hba.conf /srv/postgres/pg_hba.conf

# Enable query logging. Only if the DEBUG environment variable is set
if [ ${DEBUG:-0} -eq 1 ]; then
    sed -i 's/^#log_destination/log_destination/' /srv/postgres/postgresql.conf
    sed -i 's/^#log_statement/log_statement/' /srv/postgres/postgresql.conf
fi

# Configure Postgres service
cp ${SOURCE_DIR}/etc/init.d/postgres /etc/init.d/postgres
rc-update add postgres boot
service postgres start