Unable to remove requirements.yml from a remote.

[djdanielsson]

Discussed in https://github.com/ansible/galaxy_collection/discussions/412

^{Originally posted by @smatterchew June 26, 2024}
Hello.

I am trying to remove a requirements.yml from a remote in Private Automation Hub v4.9.1 using infra.ah_configuration.collection_remote. I've tried setting the requirements: [] to an empty list and the task succeeded, but the remote still had a collection list. Then I tried to set requirements_file: empty_requirements_file.yml and the empty file wasn't found in the files directory off the root of the role directory. I also tried to specify the path to the file as requirements_file: ./files/empty_requirements_file.yml and that also failed.

1. How come the first process of defining an empty list did not remove the requirements file? It didn't even end up as an empty list. The existing collection was still there.
2. Where in the role can I store the empty requirements file so the task module can find it? I don't want to host it on the execution node outside the Execution Environment.
3. Can we just provide a state (default: present) switch for the requirements file to have the module delete the requirements file?

Thank you in advance for your help.