nginx: [warn] [lua] http_connect.lua:21: failed to load module resty.openssl.*, mTLS isn't supported without lua-resty-openssl

[JIFVGWHvAseSovQ]

It seems like there's an issue with loading the required Lua modules resty.acme.autossl, and it's indicating that resty.openssl.* modules are not found, which implies that mTLS isn't supported due to the absence of lua-resty-openssl.
Considering that both lua-resty-acme and lua-resty-openssl are installed and located in /usr/local/lib/resty/, and the lua_package_path is correctly set to include this directory, it's perplexing why the modules cannot be found.

https://github.com/openresty/luajit2/archive/refs/tags/v2.1-20240314.tar.gz
https://github.com/vision5/ngx_devel_kit/archive/refs/tags/v0.3.3.tar.gz
https://github.com/openresty/lua-nginx-module/archive/refs/tags/v0.10.26.tar.gz
https://github.com/openresty/lua-resty-core/archive/refs/tags/v0.1.28.tar.gz
https://github.com/fffonion/lua-resty-acme/archive/refs/tags/0.13.0.tar.gz
https://github.com/fffonion/lua-resty-openssl/archive/refs/tags/1.3.1.tar.gz

https://freenginx.org/download/freenginx-1.26.0.tar.gz

user www-data;
worker_processes 1;
events {
  worker_connections 500;
}
http {
  lua_package_cpath '/usr/local/lua/?.so;';
  lua_package_path '/usr/local/lib/?.lua;/usr/local/lib/resty/?.lua;';
  init_by_lua_block {
    require("resty.acme.autossl").init({
      -- the ACME v2 API endpoint to use
      api_uri = "https://acme-v02.api.letsencrypt.org/directory",
      -- setting the following to true
      -- implies that you read and accepted https://letsencrypt.org/repository/
      tos_accepted = true,
      -- uncomment following for first time setup
      staging = true,
      -- uncomment following to enable RSA + ECC double cert
      domain_key_types = {'ecc'},
      -- uncomment following to enable tls-alpn-01 challenge
      -- enabled_challenge_handlers = { 'http-01', 'tls-alpn-01' },
      account_key_path = "/etc/nginx/ssl/account.key",
      account_email = "admin@domain.com",
      domain_whitelist = {"domain.com", "www.domain.com"}
    })
  }
  server {
    listen 400;
    location / {
      content_by_lua_block {
        require("cjson")
        require("resty.http")
        ngx.say(package.path)
      }
    }
  }
}

|  | nginx: [warn] [lua] http_connect.lua:21: failed to load module `resty.openssl.*`, mTLS isn't supported without lua-resty-openssl:
|  | /usr/local/lib/resty/openssl/x509/chain.lua:6: module 'resty.openssl.x509' not found:
|  |   no field package.preload['resty.openssl.x509']
|  |   no file '/usr/local/lib/resty/openssl/x509.lua'
|  |   no file '/usr/local/lib/resty/resty/openssl/x509.lua'
|  |   no file '/usr/local/lua/resty/openssl/x509.so'
|  |   no file '/usr/local/lua/resty.so'
|  | stack traceback:
|  |   [C]: in function 'require'
|  |   /usr/local/lib/resty/openssl/x509/chain.lua:6: in main chunk
|  |   [C]: in function 'require'
|  |   /usr/local/lib/resty/http_connect.lua:15: in function </usr/local/lib/resty/http_connect.lua:14>
|  |   [C]: in function 'xpcall'
|  |   /usr/local/lib/resty/http_connect.lua:14: in main chunk
|  |   [C]: in function 'require'
|  |   /usr/local/lib/resty/http.lua:166: in main chunk
|  |   [C]: in function 'require'
|  |   init_by_lua(nginx.conf:9):3: in main chunk
|  | nginx: [error] init_by_lua error: /usr/local/lib/resty/openssl/pkey.lua:13: module 'resty.openssl.include.x509' not found:
|  |   no field package.preload['resty.openssl.include.x509']
|  |   no file '/usr/local/lib/resty/openssl/include/x509.lua'
|  |   no file '/usr/local/lib/resty/resty/openssl/include/x509.lua'
|  |   no file '/usr/local/lua/resty/openssl/include/x509.so'
|  |   no file '/usr/local/lua/resty.so'
|  | stack traceback:
|  |   [C]: in function 'require'
|  |   /usr/local/lib/resty/openssl/pkey.lua:13: in main chunk
|  |   [C]: in function 'require'
|  |   /usr/local/lib/resty/acme/openssl.lua:8: in main chunk
|  |   [C]: in function 'require'
|  |   /usr/local/lib/resty/acme/util.lua:4: in main chunk
|  |   [C]: in function 'require'
|  |   /usr/local/lib/resty/acme/client.lua:3: in main chunk
|  |   [C]: in function 'require'
|  |   /usr/local/lib/resty/acme/autossl.lua:2: in main chunk
|  |   [C]: in function 'require'
|  |   init_by_lua(nginx.conf:9):4: in main chunk

[fffonion]

In lua_package_path you would want both path/?.lua and path/?/init.lua pattern.
You can consult the default lua_package_path from luajit or openresty for example.