[Feature]: Inventory - Be able to request only on attribute on a relationship

[BeArchiTek]

Infrahub version

v0.14.2

Feature type

Change to existing Plugin

Proposed functionality

As a user i would like to be able to fine-tuned the host_vars, for that, I would like to have a finer approach in the Inventory to avoid getting all the attributes of a given related_node if I a interested in only one

Use case

Be able to request only one attribute of a relationship instead of the full object to keep the host_vars cleaner

Example: if you want to get only the ansible_network_os attribute in platform you could do

plugin: opsmill.infrahub.inventory
api_endpoint: "http://localhost:8000"
token: "{{ lookup('ansible.builtin.env', 'INFRAHUB_API_TOKEN') }}"
timeout: 30

strict: false

nodes:
  InfraDevice:
    include:
      - id
      - name
      - platform.ansible_network_os

instead of

plugin: opsmill.infrahub.inventory
api_endpoint: "http://localhost:8000"
token: "{{ lookup('ansible.builtin.env', 'INFRAHUB_API_TOKEN') }}"
timeout: 30

strict: false

nodes:
 InfraDevice:
   include:
     - id
     - name
     - platform

compose:
 platform: platform.ansible_network_os

External dependencies

none