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Nornir Transform Function

Nornir includes a function that allows for the transformation of inventory data, a feature integrated within the Nornir platform itself. The documentation for Nornir 3.0 is somewhat sparse regarding the usage of Transform functions, so I often refer to the more comprehensive 2.5 documentation. According to the Nornir documentation:

A transform function is a plugin that manipulates the inventory independently from the inventory plugin used. Useful to extend data using the environment, a secret store or similar.

Automation Inventory

This is a topic that I'm fairly opinionated on as of late is looking at what should be maintained within an inventory and the strategy of how to set up the inventory.

For the case of this blog post, I am going to use the term playbook to represent the automation being run. This is yes an Ansible term, but also apply this as your automation run that is using Nornir or any other automation framework.