#! /usr/bin/ansible-playbook

---

- hosts: localhost
  connection: local
  gather_facts: false

  tasks:
    - name: add hosts from extra-vars
      add_host:
        name: '{{ item }}'
        groups: building
      loop: "{{ hosts_list.split('\n') }}"
      changed_when: false

- hosts: building
  gather_facts: "{{ play_roles_gather_facts | default(false) | bool }}"
  tasks:
    - debug: msg="hosts_list={{ hosts_list | replace('\n',',') }}"
      run_once: true
      when: play_roles_debug | default(false) | bool

    - name: Include Ansible roles
      include_role:
        name: "{{ role_name }}"
      loop: "{{ play_roles }}"
      loop_control:
        loop_var: role_name
      when: play_roles is defined