Installing crowdsec-nginx-bouncer failed with lua.h issue about cs-nginx-bouncer HOT 11 CLOSED

Hey it is not directly the bouncer, some reason the dependency lua_cjson is failing to compile cause it cant find the file

Could you run sudo find / -name "lua.h"

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sudo find / -name "lua.h"
/usr/include/lua5.2/lua.h

So install script is looking for lua.h in /usr/include/lua5.1!

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sudo apt install lua5.2 seems to solve this issue. However sudo nginx -t gives
sudo nginx -t
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: [error] init_by_lua error: /usr/lib/crowdsec/lua/plugins/crowdsec/iputils.lua:22: module 'ffi' not found:
no field package.preload['ffi']
no file '/usr/lib/crowdsec/lua/ffi.lua'
no file './ffi.lua'
no file '/usr/local/share/lua/5.1/ffi.lua'
no file '/usr/local/share/lua/5.1/ffi/init.lua'
no file '/usr/local/lib/lua/5.1/ffi.lua'
no file '/usr/local/lib/lua/5.1/ffi/init.lua'
no file '/usr/share/lua/5.1/ffi.lua'
no file '/usr/share/lua/5.1/ffi/init.lua'
no file './ffi.lua'
no file './ffi.so'
no file '/usr/local/lib/lua/5.1/ffi.so'
no file '/usr/lib/aarch64-linux-gnu/lua/5.1/ffi.so'
no file '/usr/lib/lua/5.1/ffi.so'
no file '/usr/local/lib/lua/5.1/loadall.so'
stack traceback:
[C]: in function 'require'
/usr/lib/crowdsec/lua/plugins/crowdsec/iputils.lua:22: in main chunk
[C]: in function 'require'
/usr/lib/crowdsec/lua/crowdsec.lua:4: in main chunk
[C]: in function 'require'
init_by_lua:2: in main chunk
nginx: configuration file /etc/nginx/nginx.conf test failed

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Starting from here: https://stackoverflow.com/questions/74914141/cannot-install-ffi-library-for-lua-luajit
I bypass the problen this way:

git clone https://github.com/facebookarchive/luaffifb
cd luaffifb
luarocks make
chmod '0755' '/usr/local/lib/lua/5.1/ffi.so'

after that nginx stop complaining...
Hope this helps...

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sudo luarocks make
gcc -O2 -fPIC -I/usr/include/lua5.1 -c call.c -o call.o -Idynasm
In file included from call.c:9:
ffi.h:30:11: fatal error: lua.h: Aucun fichier ou dossier de ce type
30 | # include <lua.h>
| ^~~~~~~
compilation terminated.

Error: Build error: Failed compiling object call.o

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Have you tried sudo apt install libffi-dev?

Maybe you're missing /usr/include/lua5.x/lua.h...

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Sorry, the correct package is liblua5.x-dev not libffi-dev.. My bad...😏

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Thanks for you help!
I have to install first liblua5.1-0.dev and then install luaffifb as suggested

But nginx -t throws

nginx: [error] [lua] crowdsec.lua:46: init(): error loading recaptcha plugin: no recaptcha site key provided, can't use recaptcha

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Ok. I can disable recaptcha temporaly and look at its configuration...

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Check this https://github.com/crowdsecurity/lua-cs-bouncer

git clone https://github.com/crowdsecurity/lua-cs-bouncer.git
Read the README.md, I had to install manually, but seems to do the trick...

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Check this https://github.com/crowdsecurity/lua-cs-bouncer

git clone https://github.com/crowdsecurity/lua-cs-bouncer.git Read the README.md, I had to install manually, but seems to do the trick...

You mean installing lua-cs-bouncer will fix nginx error? I can't disable recapcha plugin.

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