Haproxy can load socket.http.module 'socket.http' not found - lua

Question

i already install luasocket
Lua 5.3.1 Copyright (C) 1994-2015 Lua.org, PUC-Rio
> require("socket.http")
table: 0x9b2d80
>
debian:/usr/local/share/lua/5.3/socket# ll
total 56
-rw-r--r-- 1 root root 10640 Dec 22 17:47 ftp.lua
-rw-r--r-- 1 root root 3698 Dec 22 17:47 headers.lua
-rw-r--r-- 1 root root 13216 Dec 22 17:47 http.lua
-rw-r--r-- 1 root root 8074 Dec 22 17:47 smtp.lua
-rw-r--r-- 1 root root 3766 Dec 22 17:47 tp.lua
-rw-r--r-- 1 root root 11105 Dec 22 17:47 url.lua
in Haproxy Lua code:
local http = require("socket.http")
When i request web,
runtime error: /etc/haproxy/waf/lib.lua:7: module 'socket.http' not found:#012#011no field package.preload['socket.http']#012#011no file '/usr/local/share/lua/5.3/socket/http.lua'#012#011no file '/usr/local/share/lua/5.3/socket/http/init.lua'#012#011no file '/usr/local/lib/lua/5.3/socket/http.lua'#012#011no file '/usr/local/lib/lua/5.3/socket/http/init.lua'#012#011no file '/usr/share/lua/5.3/socket/http.lua'#012#011no file '/usr/share/lua/5.3/socket/http/init.lua'#012#011no file './socket/http.lua'#012#011no file './socket/http/init.lua'#012#011no file '/etc/haproxy/waf/socket/http.lua'#012#011no file '/etc/haproxy/waf/socket/http.lua'#012#011no file '/usr/local/lib/lua/5.3/socket/http.so'#012#011no file '/usr/lib/x86_64-linux-gnu/lua/5.3/socket/http.so'#012#011no file '/usr/lib/lua/5.3/socket/http.so'#012#011no file '/usr/local/lib/lua/5.3/loadall.so'#012#011no file './socket/http.so'#012#011no file '/usr/local/lib/lua/5.3/socket.so'#012#011no file '/usr/lib/x86_64-linux-gnu/lua/5.3/socket.so'#012#011no file '/usr/lib/lua/5.3/socket.so'#012#011no file '/usr/lo
who can help me. thx

Answer 1

Your computer cannot find the required files.
https://www.lua.org/pil/8.1.html
To determine its path, require first checks the global variable
LUA_PATH. If the value of LUA_PATH is a string, that string is the
path. Otherwise, require checks the environment variable LUA_PATH.
Finally, if both checks fail, require uses a fixed path (typically
"?;?.lua", although it is easy to change that when you compile Lua).
The content of LUA_PATH will be copied into package.path. So either add the location of that module to the system variable befor running Lua or add it to package.path befor require.