How to add luamqtt luarocks module in handeler.lua? Actually spend whole day but still not succed.I want to use mqtt protocol with kong

[Kibria7533]

local mqtt= require "resty.http"
local con = require "mqtt"





local plugin = {
  PRIORITY = 1000, -- set the plugin priority, which determines plugin execution order
  VERSION = "0.1", -- version in X.Y.Z format. Check hybrid-mode compatibility requirements.
}


function plugin:init_worker()
  -- your custom code here
  kong.log.debug("saying hi from the 'init_worker' handler")

end --]]



-- runs in the 'access_by_lua_block'
function plugin:access(plugin_conf)

  -- your custom code here
  kong.log.debug("llllllllllllllllllllllllllllllll*************************************************************************************************************************************************************")
  kong.log.inspect(mqtt)
   kong.log.debug("qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq")
  kong.log.inspect(plugin_conf)   -- check the logs for a pretty-printed config!
  kong.service.request.set_header(plugin_conf.request_header, "this is on a request")

end


return plugin

But the error

 error loading module 'kong.plugins.myplugin.handler':
/kong-plugin/kong/plugins/myplugin/handler.lua:2: module 'luamqtt.mqtt' not found:No LuaRocks module found for luamqtt.mqtt
        no field package.preload['luamqtt.mqtt']
        no file './luamqtt/mqtt.lua'
        no file './luamqtt/mqtt/init.lua'
        no file '/usr/local/openresty/site/lualib/luamqtt/mqtt.ljbc'
        no file '/usr/local/openresty/site/lualib/luamqtt/mqtt/init.ljbc'
        no file '/usr/local/openresty/lualib/luamqtt/mqtt.ljbc'
        no file '/usr/local/openresty/lualib/luamqtt/mqtt/init.ljbc'
        no file '/usr/local/openresty/site/lualib/luamqtt/mqtt.lua'
        no file '/usr/local/openresty/site/lualib/luamqtt/mqtt/init.lua'
        no file '/usr/local/openresty/lualib/luamqtt/mqtt.lua'
        no file '/usr/local/openresty/lualib/luamqtt/mqtt/init.lua'
        no file '/kong-plugin/luamqtt/mqtt.lua'
        no file '/kong-plugin/luamqtt/mqtt/init.lua'
        no file '/usr/local/openresty/luajit/share/luajit-2.1.0-beta3/luamqtt/mqtt.lua'
        no file '/usr/local/share/lua/5.1/luamqtt/mqtt.lua'
        no file '/usr/local/share/lua/5.1/luamqtt/mqtt/init.lua'
        no file '/usr/local/openresty/luajit/share/lua/5.1/luamqtt/mqtt.lua'
        no file '/usr/local/openresty/luajit/share/lua/5.1/luamqtt/mqtt/init.lua'
        no file '/root/.luarocks/share/lua/5.1/luamqtt/mqtt.lua'
        no file '/root/.luarocks/share/lua/5.1/luamqtt/mqtt/init.lua'
        no file '/usr/local/openresty/lualib/luamqtt/mqtt.so'
        no file '/usr/local/openresty/site/lualib/luamqtt/mqtt.so'
        no file './luamqtt/mqtt.so'
        no file '/usr/local/lib/lua/5.1/luamqtt/mqtt.so'
        no file '/usr/local/openresty/luajit/lib/lua/5.1/luamqtt/mqtt.so'
        no file '/usr/local/lib/lua/5.1/loadall.so'
        no file '/root/.luarocks/lib/lua/5.1/luamqtt/mqtt.so'
        no file '/usr/local/openresty/lualib/luamqtt.so'
        no file '/usr/local/openresty/site/lualib/luamqtt.so'
        no file './luamqtt.so'
        no file '/usr/local/lib/lua/5.1/luamqtt.so'
        no file '/usr/local/openresty/luajit/lib/lua/5.1/luamqtt.so'
        no file '/usr/local/lib/lua/5.1/loadall.so'
        no file '/root/.luarocks/lib/lua/5.1/luamqtt.so'
stack traceback:
        [C]: in function 'require'
        /kong-plugin/kong/plugins/myplugin/handler.lua:2: in main chunk
        [C]: at 0x7ff305696410
        [C]: in function 'xpcall'
        /usr/local/share/lua/5.1/kong/tools/utils.lua:691: in function 'load_module_if_exists'
        /usr/local/share/lua/5.1/kong/db/dao/plugins.lua:154: in function 'load_plugin_handler'
        /usr/local/share/lua/5.1/kong/db/dao/plugins.lua:260: in function 'load_plugin'
        /usr/local/share/lua/5.1/kong/db/dao/plugins.lua:312: in function 'load_plugin_schemas'
        /usr/local/share/lua/5.1/kong/init.lua:622: in function 'init'
        init_by_lua:3: in main chunk
stack traceback:
        [C]: in function 'error'
        /usr/local/share/lua/5.1/kong/tools/utils.lua:700: in function 'load_module_if_exists'
        /usr/local/share/lua/5.1/kong/db/dao/plugins.lua:154: in function 'load_plugin_handler'
        /usr/local/share/lua/5.1/kong/db/dao/plugins.lua:260: in function 'load_plugin'
        /usr/local/share/lua/5.1/kong/db/dao/plugins.lua:312: in function 'load_plugin_schemas'
        /usr/local/share/lua/5.1/kong/init.lua:622: in function 'init'
        init_by_lua:3: in main chunk