tarantoolctl rocks vs luarocks?

[kevpie]

Trying to use the docker image and it seems broken.

When I connect to the console require('mysql') doesn't load the rock.

unix/:/var/run/tarantool/tarantool.sock> local mysql = require('mysql')
---
...

unix/:/var/run/tarantool/tarantool.sock> local pool = mysql.pool_create({ host = '127.0.0.1', user = 'user', password = 'password', db = 'db', size = 5 })
---
- error: '[string "local pool = mysql.pool_create({ host = ''127...."]:1: attempt
    to index global ''mysql'' (a nil value)'
...

When I logon to the container via /bin/sh

tarantoolctl rocks list shows nothing

~ # tarantoolctl rocks list

Installed rocks:
----------------

luarocks list shows all the bundled rocks

~ # luarocks list

Installed rocks:
----------------

avro-schema
   2.0.1-1 (installed) - /usr/local/lib/luarocks/rocks

connpool
   1.1.1-1 (installed) - /usr/local/lib/luarocks/rocks

expirationd
   1.0.1-1 (installed) - /usr/local/lib/luarocks/rocks

gis
   1.0.0-1 (installed) - /usr/local/lib/luarocks/rocks

gperftools
   1.0.1-1 (installed) - /usr/local/lib/luarocks/rocks

http
   1.0.1-1 (installed) - /usr/local/lib/luarocks/rocks

ldoc
   1.4.6-2 (installed) - /usr/local/lib/luarocks/rocks

lua-term
   0.7-1 (installed) - /usr/local/lib/luarocks/rocks

luafilesystem
   1.7.0-2 (installed) - /usr/local/lib/luarocks/rocks

markdown
   0.33-1 (installed) - /usr/local/lib/luarocks/rocks

memcached
   1.0.0-1 (installed) - /usr/local/lib/luarocks/rocks

mqtt
   1.2.1-1 (installed) - /usr/local/lib/luarocks/rocks

mysql
   2.0.1-1 (installed) - /usr/local/lib/luarocks/rocks

penlight
   1.5.4-1 (installed) - /usr/local/lib/luarocks/rocks

pg
   2.0.1-1 (installed) - /usr/local/lib/luarocks/rocks

prometheus
   1.0.0-1 (installed) - /usr/local/lib/luarocks/rocks

queue
   1.0.2-1 (installed) - /usr/local/lib/luarocks/rocks

shard
   scm-1 (installed) - /usr/local/lib/luarocks/rocks

tarantool-curl
   2.3.1-1 (installed) - /usr/local/lib/luarocks/rocks

Trying to move forward with testing. Please advise.

[kevpie]

Since I'm brand new to lua, I learned this as one does, the hard way.

Found my answer here...
http://lua-users.org/wiki/ScopeTutorial

Why are local variables difficult in the interactive interpreter
Because it runs each line in a new scope:

> local a=5; print(a)
5
> print(a) -- a is out of scope now, so global a is used
nil

If I don't assign to local scope everything is working.