---
- name: In mount state
  include: "{{ item.state | default('mounted', true) }}.yml"
  vars:
    mount: "{{ item }}"
  when:
    - action is undefined 
    - (mounts | default([], true) | length) > 0
  with_items: "{{ mounts }}"

- name: Update/create mount
  include: mounted.yml
  vars:
    mount: "{{ item }}"
  when:
    - action is defined 
    - action == 'mounted'
    - item.state is undefined
    - (mounts | default([], true) | length) > 0
  with_items: "{{ mounts }}"

- name: Delete mount
  include: unmounted.yml
  vars:
    mount: "{{ item }}"
  when:
    - action is defined 
    - action == 'unmounted'
    - item.state is undefined
    - (mounts | default([], true) | length) > 0
  with_items: "{{ mounts }}"
...