Custom AWX Execution Environment: NetBox support

This folder contains a minimal Dockerfile and helper to create an AWX Execution
Environment that includes the NetBox Ansible collection and pynetbox.

Files:
- Dockerfile - derived from quay.io/ansible/awx-ee:latest, installs pynetbox and netbox.netbox
- build-and-load-ee.sh - builds the image and loads it into Minikube

Usage:
1. Build and load into minikube:

   IMAGE_NAME=local/awx-ee-netbox:latest ./awx-local-setup/ee/build-and-load-ee.sh

2. Register this Execution Environment in AWX (UI or awx-cli / API). Use the image
   name you built (local/awx-ee-netbox:latest) as the Execution Environment image.

3. Commit an inventory plugin file (example: inventory/netbox_inventory.yml) to
   your project repository that uses the netbox.netbox.inventory plugin and
   references the NetBox token and URL.

4. Create an AWX inventory source of type `scm` pointing to the project and set
   `source_path` to the plugin file created in step 3. Ensure the inventory
   source uses the custom Execution Environment.

Notes:
- If your Minikube cluster uses a remote container runtime you may need to push
  the built image to a registry reachable by the cluster and set IMAGE_NAME
  accordingly.
- For production, build and push to a private registry and configure AWX to
  pull the image using pull secrets.