today I came about what I see as a possible violation of GPLv3 license in openstack/os-faults project.

As all other openstack/* projects, openstack/os-faults and all of its code is licensed under Apache v2 license.

But the code in os_faults/ansible/executor.py module explicitly imports multiple modules [0] from Ansible, which in turn are licensed under GPLv3 license (example of the first imported module [1]).

IANAL, but as far as I understand Apache v2 and GPLv3 licenses are incompatible in this regard. 

I'd like to be proven wrong, but it seems this code in os-faults must be removed, and if needed rewritten to call out to "ansible" or "ansible-playbook" CLI scripts (and parsing their stdout) instead.

[0] http://git.openstack.org/cgit/openstack/os-faults/tree/os_faults/ansible/executor.py#n19

[1] https://github.com/ansible/ansible/blob/v2.4.1.0-1/lib/ansible/executor/task_queue_manager.py#L5-L8

Best regards,

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