How from sls file to custom modules present under _module folder gets called

[Baitanik Talukder]

Hello, 
i am new to salt stack. we are using metalk8s onprem which uses salt stack. https://github.com/scality/metalk8s 

There we have one sls file e.g -> 

#! metalk8s_kubernetes

kind: Namespace

apiVersion: v1

metadata:

  name: metalk8s-ui

  labels:

    app.kubernetes.io/managed-by: salt

    app.kubernetes.io/part-of: metalk8s

    heritage: metalk8s

and they have salt/_renderers/metalk8s_kubernetes.py ... 
and also one module salt/_modules/metalk8s_kubernetes.py ...

from sls file first it gets called to renderer, but after that how the module gets called.. Not understanding that... 

so could anyone please help and tell how from normal sls file to custom renderer and custom module file are connected ?

[Vaarlion]

i don't know what you are using, but as a general information, modules are peice of code that YOU can call individually when needed, but are mostly used by other part of salt like state, or renderer.

You can see those as library of function (IMO)

It's likely than your rendered call some of the module function on it's own