hub_ee_registries

The infra.aap_configuration collection expects the vaules in the variable: hub_ee_registries. As we intend to configure everything just once, we spit the set of vars into the environments and join the lists in the main.yml, before calling the collection. If there are no ee_registries defined, do not add this file. If you do, ensure the file is present in all branches, with the correct content, described below.

group_vars/all/hub_ee_registries.yml

As we do not configure extra ee_registries, this file could be an empty set. For educational purposes, we added the removal of a custom registry entry.

---
hub_ee_registries_all:
   - name: my_registry
     state: absent
...

But you can already see that the variable name used here has the "_all" extension, so the variable will not be overridden as this is not quite a inventory.
Why we do this, will become clear in a moment.

group_vars/dev/hub_ee_registries.yml

As we do not configure extra ee registries in automation hub, this file is an empty set.

---
hub_ee_registries_dev: []
  # No extra config exists
...

Here the variable has the "_dev" extension, so the variable will not be overridden.

group_vars/prod/hub_ee_registries.yml

As we do not configure extra ee_registries in automation hub, this file is an empty set.

---
hub_ee_registries_prod: []
  # No extra config exists
...

Here the variable has the "_prod" extension, so the variable will not be overridden.

When we run a pipeline for a certain environment, the inventory structure will provide us with 2 variables: - hub_ee_registries_all
- hub_ee_registries_

We will merge these 2 variables into 1: hub_ee_registries and feed this to the infra.aap_configuration.hub_ee_registries role.
In main.yml the merge of the variables is done by this piece of code:

    - name: Set the gateway vars
      ansible.builtin.set_fact:
        hub_ee_registries: >
          {{ hub_ee_registries_all |
          community.general.lists_mergeby(vars['hub_ee_registries_' + branch_name],
          'name', recursive=true, list_merge='append') }}

This results in the hub_ee_registries variable the collection needs.

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