experimenting with postgres config

atdb/docker/postgres/Dockerfile

@@ -40,7 +40,7 @@ RUN echo "host all  all    0.0.0.0/0  md5" >> /etc/postgresql/9.4/main/pg_hba.co
 RUN echo "listen_addresses='*'" >> /etc/postgresql/9.4/main/postgresql.conf
 
 # Add VOLUMEs to allow backup of config, logs and databases
-#VOLUME  ["/etc/postgresql", "/var/log/postgresql", "/var/lib/postgresql"]
+VOLUME  ["/etc/postgresql", "/var/log/postgresql", "/var/lib/postgresql"]
 
 # Set the default command to run when starting the container
 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"]