Adding support for Lua
Special mention should be made here of the ngx_lua third-party module. The ngx_lua module serves to enable Lua instead of Perl as a configuration time embedded scripting language. The great advantage this module has over the perl module is its non-blocking nature and tight integration with other third-party modules. The installation instructions are fully described at https://github.com/openresty/lua-nginx-module#installation. We will be using this module as an example of installing a third-party module in the next section.
