ansible/playbooks/sync_all_test.yaml

---
- name: import a task
  hosts: containers
  gather_facts: false
  vars:
    listjojocomma: "{{ selected_containers | split(',') }}"
    #listjojocomma: "{{ selected_containers | from_json }}"
  tasks:
    - debug:
        msg: "{{ listjojocomma }}"
      when: inventory_hostname in groups['morefine-server']
    - debug:
        msg: "{{ item }}"
      loop: "{{ listjojocomma }}"
      when: inventory_hostname in groups['morefine-server']
    
    - debug:
        msg: "{{ item }}"
      loop: "{{ selected_host }}"
      when: inventory_hostname in groups['morefine-server']