= require and ubuntu path problem

[Sergey Korobanov]

Hello!

We use tarantool with ubuntu server.

I deploy application into folder

/opt/application/views/server.lua

and make symlink to /etc/tarantool/instances.enabled/server.lua

service start all o.k., but when i create lib folder and lib

/opt/application/views/lib/lib.lua

and try to use it in application via

local lib = require 'lib/lib'

server don`t start with error in logs:

Sep 25 11:04:21 tarantool1-1.ssel2 tarantoolctl[21012]: Starting instance server...
Sep 25 11:04:21 tarantool1-1.ssel2 tarantoolctl[21012]: Start failed: /etc/tarantool/instances.enabled/server.lua:16: module 'lib/lib' not found:
Sep 25 11:04:21 tarantool1-1.ssel2 tarantoolctl[21012]:         no field package.preload['lib/lib']
Sep 25 11:04:21 tarantool1-1.ssel2 tarantoolctl[21012]:         no file './lib/lib.lua'
Sep 25 11:04:21 tarantool1-1.ssel2 tarantoolctl[21012]:         no file './lib/lib/init.lua'
Sep 25 11:04:21 tarantool1-1.ssel2 tarantoolctl[21012]:         no file './lib/lib.so'
Sep 25 11:04:21 tarantool1-1.ssel2 tarantoolctl[21012]:         no file '//.rocks/share/tarantool/lib/lib.lua'
Sep 25 11:04:21 tarantool1-1.ssel2 tarantoolctl[21012]:         no file '//.rocks/share/tarantool/lib/lib/init.lua'
Sep 25 11:04:21 tarantool1-1.ssel2 tarantoolctl[21012]:         no file '/.rocks/share/tarantool/lib/lib.lua'
Sep 25 11:04:21 tarantool1-1.ssel2 tarantoolctl[21012]:         no file '/.rocks/share/tarantool/lib/lib/init.lua'
Sep 25 11:04:21 tarantool1-1.ssel2 tarantoolctl[21012]:         no file '//.rocks/lib/tarantool/lib/lib.so'
Sep 25 11:04:21 tarantool1-1.ssel2 tarantoolctl[21012]:         no file '/.rocks/lib/tarantool/lib/lib.so'
Sep 25 11:04:21 tarantool1-1.ssel2 tarantoolctl[21012]:         no file '/var/spool/tarantool/.luarocks/share/lua/5.1/lib/lib.lua'
Sep 25 11:04:21 tarantool1-1.ssel2 tarantoolctl[21012]:         no file '/var/spool/tarantool/.luarocks/share/lua/5.1/lib/lib/init.lua'
Sep 25 11:04:21 tarantool1-1.ssel2 tarantoolctl[21012]:         no file '/var/spool/tarantool/.luarocks/share/lua/lib/lib.lua'
Sep 25 11:04:21 tarantool1-1.ssel2 tarantoolctl[21012]:         no file '/var/spool/tarantool/.luarocks/share/lua/lib/lib/init.lua'
Sep 25 11:04:21 tarantool1-1.ssel2 tarantoolctl[21012]:         no file '/usr/local/share/tarantool/lib/lib.lua'
Sep 25 11:04:21 tarantool1-1.ssel2 tarantoolctl[21012]:         no file '/usr/local/share/tarantool/lib/lib/init.lua'
Sep 25 11:04:21 tarantool1-1.ssel2 tarantoolctl[21012]:         no file '/usr/share/tarantool/lib/lib.lua'
Sep 25 11:04:21 tarantool1-1.ssel2 tarantoolctl[21012]:         no file '/usr/share/tarantool/lib/lib/init.lua'
Sep 25 11:04:21 tarantool1-1.ssel2 tarantoolctl[21012]:         no file '/usr/local/share/lua/5.1/lib/lib.lua'
Sep 25 11:04:21 tarantool1-1.ssel2 tarantoolctl[21012]:         no file '/usr/local/share/lua/5.1/lib/lib/init.lua'
Sep 25 11:04:21 tarantool1-1.ssel2 tarantoolctl[21012]:         no file '/usr/share/lua/5.1/lib/lib.lua'
Sep 25 11:04:21 tarantool1-1.ssel2 tarantoolctl[21012]:         no file '/usr/share/lua/5.1/lib/lib/init.lua'
Sep 25 11:04:21 tarantool1-1.ssel2 tarantoolctl[21012]:         no file '/var/spool/tarantool/.luarocks/lib/lua/5.1/lib/lib.so'
Sep 25 11:04:21 tarantool1-1.ssel2 tarantoolctl[21012]:         no file '/var/spool/tarantool/.luarocks/lib/lua/lib/lib.so'
Sep 25 11:04:21 tarantool1-1.ssel2 tarantoolctl[21012]:         no file '/usr/local/lib/x86_64-linux-gnu/tarantool/lib/lib.so'
Sep 25 11:04:21 tarantool1-1.ssel2 tarantoolctl[21012]:         no file '/usr/lib/x86_64-linux-gnu/tarantool/lib/lib.so'
Sep 25 11:04:21 tarantool1-1.ssel2 tarantoolctl[21012]:         no file '/usr/local/lib/tarantool/lib/lib.so'
Sep 25 11:04:21 tarantool1-1.ssel2 tarantoolctl[21012]:         no file '/usr/local/lib/x86_64-linux-gnu/lua/5.1/lib/lib.so'
Sep 25 11:04:21 tarantool1-1.ssel2 tarantoolctl[21012]:         no file '/usr/lib/x86_64-linux-gnu/lua/5.1/lib/lib.so'
Sep 25 11:04:21 tarantool1-1.ssel2 tarantoolctl[21012]:         no file '/usr/local/lib/lua/5.1/lib/lib.so'
Sep 25 11:04:21 tarantool1-1.ssel2 systemd[1]: tara...@server.service: Main process exited, code=exited, status=1/FAILURE

lib.lua cannot be found :( :(

So, can you help me:

1. Why tarantol don`t use path './lib/lib.lua'?

2. What is "current folder" on tarantool server? I mean ./lib 

3. What is best folder to deploy application? I mean for example for apache it`s historically /var/www/sitename but where to deploy lua code for tarantool in ubuntu?

Great Thanks!

Sergey.

[Alexander Turenko]

It was answered in the telegram channel, but I'll leave the answer here too.

Use /usr/share/tarantool/myapp or /usr/local/share/tarantool/myapp and require('myapp.lib').

More related messages:

> …cwd is only part of the story. Tarantool looks for a module in set of predefined directories (including current directory) and .rocks directories in {current, parent, parent(parent), ...} directories.

> More info: RTFS (grep for 'package.loaders').

WBR, Alexander Turenko.

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