{variables, [{prefix, "{{prefix}}"},
             {core_dir, "{{prefix}}/dbcore"},
             {data_dir, "/srv/db"},
             {view_dir, "/srv/view_index"}]}.
{template, "./etc/default.ini", "rel/overlay/etc/default.ini"}.
{file, "rebar.config", "rebar.config"}.
{file, "/usr/local/lib/erlang/lib/erl_interface-3.6.5/bin/erl_call", "rel/overlay/erts-vsn/bin/erl_call"}.
{chmod, 8#755, "rel/overlay/erts-vsn/bin/erl_call"}.