Here there is a sentence:
Tip: In Ansible 1.2 or later the group_vars/ and host_vars/ directories can exist in the playbook directory OR the inventory directory. If both paths exist, variables in the playbook directory will override variables set in the inventory directory.
How can I define:
- playbook directory
- inventory directory
I'm not aware of that configuration and it seems that in my plays with Ansible I always have one dir which was in the same time playbook directory and inventory directory, but such separation could be useful.