- name: perform linux SAT
  hosts: sat_test_linux_group
  gather_facts: False

  pre_tasks:

  - name: set ansible_play_hosts start fact
    set_fact:
      start_ansible_play_hosts: "{{ ansible_play_hosts }}"
    delegate_to: localhost
    run_once: true

  tasks:

  - name: gather facts
    setup:

  - name: set ansible_play_hosts end fact
    set_fact:
      end_ansible_play_hosts: "{{ ansible_play_hosts }}"

  post_tasks:

  - name: set failed hosts fact
    set_fact:
      failed_hosts: "{{ start_ansible_play_hosts | difference(end_ansible_play_hosts) }}"
    delegate_to: localhost
    run_once: true

  - name: debug start_ansible_play_hosts
    debug:
      var: start_ansible_play_hosts
    delegate_to: localhost
    run_once: true

  - name: debug end_ansible_play_hosts
    debug:
      var: end_ansible_play_hosts
    delegate_to: localhost
    run_once: true

  - name: debug failed_hosts
    debug:
      var: failed_hosts
    delegate_to: localhost
    run_once: true

  - name: dummy exit_status
    set_fact:
      exit_status: { testing: '123' }

  - name: "check if host is available"
    set_fact:
      check_fail_hosts: "{{ check_fail_hosts|default([]) + [ { item : 'HOST FATAL ERROR' } ] }}"
      check_tasks: "{{ check_tasks|default([]) + [ exit_status | combine( { 'task': 'no task selected' } ) ] }}"
    with_items:
     - "{{ failed_hosts  }}"
    run_once: yes

  - name: debug check_fail_hosts
    debug:
      var: check_fail_hosts
    delegate_to: localhost
    run_once: true

  - name: debug check_tasks
    debug:
      var: check_tasks
    delegate_to: localhost
    run_once: true