Add Hetzner Cloud Inventory source

[tomsiewert]

SUMMARY

This PR adds support for the dynamic inventory source "Hetzner Cloud" (hetzner.hcloud.hcloud).

ISSUE TYPE

• New or Enhanced Feature

COMPONENT NAME

• API
• UI
• Collection
• CLI
• Docs

AWX VERSION

awx: 23.3.2.dev19+g4a46f258c0

ADDITIONAL INFORMATION

This PR requires ansible/awx-ee#219 to be merged

[AlanCoding]

AWX allows custom credential types, allows SCM inventory sources, and allows customizing the default execution environment. Why do you want this in the built-in list of inventory sources as opposed to using these custom tools?

[tomsiewert]

Thanks for your feedback @AlanCoding!

Why do you want this in the built-in list of inventory sources as opposed to using these custom tools?

A valid point and unfortunately, it was not directly obvious for me when I started to implement HC as Inventory Source. I looked in the docs before but obviously I couldn't find anything about "please use a custom credential type for custom inventory sources". I just looked into it more deeper and saw that it is "hidden" as a step in the "Sourced from a Project" section without any reference in the inventory sources part. Maybe this should be made more clear?

On the other side, I could also ask why we have vCenter or OpenStack as native inventory source? If I see this right, those inventory sources do nothing else than my current implementation (except for the compatibility layer).

[tomsiewert]

Hey @AlanCoding @gundalow,

Is this still in review or do you say it's unnecessary to implement HC as inventory source and rather improve the documentation about how to use a custom inventory?