Cannot find KONG executable in bin dir

I have had a problem with KONG executable when instaling from the source. The installation finished without any errors; however, I cannot find the KONG bin dir even though I have set the LUA_PATH, LUA_CPATH.

The command I’ve used to install to install KONG into ~/software/kong123 dir:

luarocks install --tree ~/software/kong123 kong 1.0.3 OPENSSL_DIR=$OPENSSL_HOME OPENSSL_LIBDIR=$OPENSSL_HOME/lib CRYPTO_DIR=$OPENSSL_HOME

The output:

kong-prometheus-plugin 0.3.4-2 is now installed in /home/mpe/software/kong123 (license: Apache 2.0)

Cloning into ‘kong’…
remote: Enumerating objects: 704, done.
remote: Counting objects: 100% (704/704), done.
remote: Compressing objects: 100% (596/596), done.
remote: Total 704 (delta 152), reused 281 (delta 83), pack-reused 0
Receiving objects: 100% (704/704), 765.92 KiB | 0 bytes/s, done.
Resolving deltas: 100% (152/152), done.
Note: checking out ‘e7e2fa3a6e8e325d1eded180438f2ea81aaa28ee’.

You are in ‘detached HEAD’ state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by performing another checkout.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -b with the checkout command again. Example:

git checkout -b new_branch_name

kong 1.0.3-0 is now installed in /home/mpe/software/kong123 (license: Apache 2.0)

Check bin dir inside kong123 dir but there’s no any kong executable:

$ ll ~/software/kong123/bin/
total 12
-rwxr-xr-x 1 mpe mpe 584 Apr 29 23:53 json2lua
-rwxr-xr-x 1 mpe mpe 583 Apr 29 23:52 lapis
-rwxr-xr-x 1 mpe mpe 584 Apr 29 23:53 lua2json

Also, I see that luarocks automatically clones the KONG source code from git but I cannot find where is the location from which the source code was cloned? Perhaps, the KONG bin dir is in that location?

Cloning into ‘kong’…
remote: Enumerating objects: 704, done.
remote: Counting objects: 100% (704/704), done.
remote: Compressing objects: 100% (596/596), done.
remote: Total 704 (delta 152), reused 281 (delta 83), pack-reused 0
Receiving objects: 100% (704/704), 765.92 KiB | 0 bytes/s, done.
Resolving deltas: 100% (152/152), done.

Could you give me some ideas to find a workaround?

Thanks.