{variables, [{prefix, "{{prefix}}"},
             {core_dir, "{{prefix}}/dbcore"},
             {data_dir, "/srv/db"},
             {view_dir, "/srv/view_index"},
             {user, "dbcore"}]}.
{template, "./Makefile", "Makefile"}.
{template, "./etc/default.ini", "rel/overlay/etc/default.ini"}.
{file, "rebar.config", "rebar.config"}.