Can't load the cjson module into luajit CLI

[ADUDevEx]

Environment

Computer : Mac Book M2 Docker : 24.0.6, build ed223bc820 Docker image : openresty/openresty:1.21.4.1-8-alpine-fat

Issue

CJSON is supposed to be available on the Docker image

Demo

~ $ docker run -ti openresty/openresty:1.21.4.1-8-alpine-fat sh

/ # env
HOSTNAME=6a0edb9ed3dc
LUA_PATH=/usr/local/openresty/site/lualib/?.ljbc;/usr/local/openresty/site/lualib/?/init.ljbc;/usr/local/openresty/lualib/?.ljbc;/usr/local/openresty/lualib/?/init.ljbc;/usr/local/openresty/site/lualib/?.lua;/usr/local/openresty/site/lualib/?/init.lua;/usr/local/openresty/lualib/?.lua;/usr/local/openresty/lualib/?/init.lua;./?.lua;/usr/local/openresty/luajit/share/luajit-2.1.0-beta3/?.lua;/usr/local/share/lua/5.1/?.lua;/usr/local/share/lua/5.1/?/init.lua;/usr/local/openresty/luajit/share/lua/5.1/?.lua;/usr/local/openresty/luajit/share/lua/5.1/?/init.lua
SHLVL=1
HOME=/root
TERM=xterm
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/local/openresty/luajit/bin:/usr/local/openresty/nginx/sbin:/usr/local/openresty/bin
LUA_CPATH=/usr/local/openresty/site/lualib/?.so;/usr/local/openresty/lualib/?.so;./?.so;/usr/local/lib/lua/5.1/?.so;/usr/local/openresty/luajit/lib/lua/5.1/?.so;/usr/local/lib/lua/5.1/loadall.so;/usr/local/openresty/luajit/lib/lua/5.1/?.so
PWD=/
/ # find / -name "*cjson*"
/usr/local/openresty/lualib/cjson.so
/usr/local/openresty/pod/lua-cjson-2.1.0.10
/usr/local/openresty/pod/lua-cjson-2.1.0.10/lua-cjson-2.1.0.10.pod
/ # luajit
LuaJIT 2.1.0-beta3 -- Copyright (C) 2005-2022 Mike Pall. https://luajit.org/
JIT: ON fold cse dce fwd dse narrow loop abc sink fuse
> local cjson = require("cjson")
> if not cjson then
>> print("no")
>> end
no

/ # luarocks install lua-cjson
Installing https://luarocks.org/lua-cjson-2.1.0.10-1.src.rock
lua-cjson 2.1.0.10-1 depends on lua >= 5.1 (5.1-1 provided by VM)
gcc -O2 -fPIC -I/usr/local/openresty/luajit/include/luajit-2.1 -c lua_cjson.c -o lua_cjson.o
gcc -O2 -fPIC -I/usr/local/openresty/luajit/include/luajit-2.1 -c strbuf.c -o strbuf.o
gcc -O2 -fPIC -I/usr/local/openresty/luajit/include/luajit-2.1 -c fpconv.c -o fpconv.o
gcc  -shared -o cjson.so lua_cjson.o strbuf.o fpconv.o
No existing manifest. Attempting to rebuild...
lua-cjson 2.1.0.10-1 is now installed in /usr/local/openresty/luajit (license: MIT)

/ # find / -name "*cjson*"
/usr/local/openresty/luajit/share/lua/5.1/cjson
/usr/local/openresty/luajit/lib/lua/5.1/cjson.so
/usr/local/openresty/luajit/lib/luarocks/rocks-5.1/lua-cjson
/usr/local/openresty/luajit/lib/luarocks/rocks-5.1/lua-cjson/2.1.0.10-1/lua-cjson-2.1.0.10-1.rockspec
/usr/local/openresty/lualib/cjson.so
/usr/local/openresty/pod/lua-cjson-2.1.0.10
/usr/local/openresty/pod/lua-cjson-2.1.0.10/lua-cjson-2.1.0.10.pod
/var/cache/luarocks/https___luarocks.org/lua-cjson-2.1.0.10-1.src.rock

/ # luajit
LuaJIT 2.1.0-beta3 -- Copyright (C) 2005-2022 Mike Pall. https://luajit.org/
JIT: ON fold cse dce fwd dse narrow loop abc sink fuse
> local cjson = require("cjson")
> if not cjson then
>> print("no")
>> end
no

I hope I'm not just overlooking a step to load it. Let me know if you need more information and thanks in advance for your help.

[neomantra]

The LuaRocks CJSON won't work without pat adjustment, but CJSON should be built-in.

Try these commands to verify:

> docker run -ti --rm openresty/openresty:1.21.4.1-8-alpine-fat sh -c "luajit -e \"print(require('cjson'))\""
table: 0x581979746f08

> docker run -ti --rm openresty/openresty:1.21.4.1-8-alpine-fat sh -c "luajit -e \"for k, v in pairs(require('cjson')) do print(k,v) end\""
new function: 0x23f05180eef0
null    userdata: NULL
empty_array_mt  table: 0x23f05180e0a8
array_mt    table: 0x23f05180e0f0
empty_array userdata: 0x7fffb48bd988
_NAME   cjson
_VERSION    2.1.0.10
encode  function: 0x23f05180e7c0
decode  function: 0x23f05180e838
encode_empty_table_as_object    function: 0x23f05180e8a0
decode_array_with_array_mt  function: 0x23f05180e988
encode_sparse_array function: 0x23f05180ea08
encode_max_depth    function: 0x23f05180e920
decode_max_depth    function: 0x23f05180eb48
encode_number_precision function: 0x23f05180ebc0
encode_keep_buffer  function: 0x23f05180ec38
encode_invalid_numbers  function: 0x23f05180ea48
decode_invalid_numbers  function: 0x23f05180eac0
encode_escape_forward_slash function: 0x23f05180ee70