Re: [Lmod-users] Hooking lmod methods

[<mal...@ci...>]

Hey, 
thanks for your inputs, 
I ended up using SitePackage with a sandbox table modification as you hinted. And it works like a charm. 

The goal if this SitePackage usage is to workaround some vendor generated modules that dont play well with our site's policy (it append_path in the wrong environment variable). By hooking prepend_path through SitePackage, we avoid module modification. 

Cheers, 
Etienne 

De: "Ward Poelmans" <wpo...@gm...> 
À: "lmod-users" <lmo...@li...> 
Envoyé: Jeudi 5 Février 2026 21:07:46 
Objet: Re: [Lmod-users] Hooking lmod methods 

On Thu, Feb 5, 2026 at 8:04 PM Ward Poelmans < [ mailto:wpo...@gm... | wpo...@gm... ] > wrote: 


> I'm not sure I understand what you try to achieve but the 
> SitePackage.lua is quite reliable. We put it at 
> /etc/lmod/SitePackage.lua where it gets picked up by Lmod. We've never 
> seen issue with this, no matter how creative the users are. 

I missed the crucial bit: the file /etc/lmod/lmod_config.lua is read by Lmod. There you can tell it where to look for SitePackage.lua: 
require("strict") 
local cosmic = require("Cosmic"):singleton() 
cosmic:assign("LMOD_PACKAGE_PATH", "/etc/lmod") 

This makes Lmod look into /etc/lmod for the file SitePackage.lua 

Ward 



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