The rotate-keys.yaml formerly lived in tripleo-common, but was later
refactored into tripleo-ansible, which makes sense because it's an
ansible playbook. When that happened, tripleo-common was updated to
point to the location of the new playbook [0].
However, it appears that the playbooks are installed into
/usr/share/ansible/tripleo-playbooks/ and not
/usr/share/tripleo-ansible/playbooks. This will cause errors invoking
key rotation since mistral can't find the playbook to execute:
ERROR! A playbook must be a list of plays, got a <class
'ansible.parsing.yaml.objects.AnsibleUnicode'> instead
This commit fixes the issue by updating the path to point to the
installed location of rotate-keys.yaml. This fix is only applicable to
stable/train since mistral was removed from master.
[0] 50e464c6f4
Change-Id: I74b64476b74344eb7d4cf1c0635f07a5fc128d3c
5eaf3dbb05