okd/roles/etcd_common/tasks/main.yml

---
- name: Fail if invalid r_etcd_common_action provided
  fail:
    msg: "etcd_common role can only be called with 'noop' or 'backup' or 'drop_etcdctl'"
  when: r_etcd_common_action not in ['noop', 'backup', 'drop_etcdctl']

- name: Include main action task file
  include: "{{ r_etcd_common_action }}.yml"
  when: r_etcd_common_action != "noop"