okd/roles/lib_openshift/tasks/main.yml

---
- name: lib_openshift detect ostree
  stat:
    path: /run/ostree-booted
  register: ostree_booted

- name: lib_openshift ensure python-ruamel-yaml package is on target
  package:
    name: python-ruamel-yaml
    state: present
  when: not ostree_booted.stat.exists