---

- name: Node name, hostname and ip to global variable
  set_fact: 
    all_instances_hostnames: "{{ all_instances_hostnames | default([]) + [{'node_name' : item.key, 'hostname' : item.value.ansible_hostname, 'ip' : item.value.ansible_default_ipv4.address}]  }}"
  loop: "{{ hostvars | dict2items }}"
  no_log: true

- name: Check if IPs were already added to /etc/hosts
  lineinfile:
    name: "/etc/hosts"
    regexp: "^{{ item.ip }} {{ item.hostname }}.{{ GLOBAL_DNS_ZONE_NAME }} {{ item.hostname }}"
    state: absent
  check_mode: yes
  changed_when: false
  register: line_is_present
  with_items: "{{ all_instances_hostnames }}"

- name: Add found IPs and hostname to /etc/hosts
  lineinfile:
    name: "/etc/hosts"
    line: "{{ item.item.ip }} {{ item.item.hostname }}.{{ GLOBAL_DNS_ZONE_NAME }} {{ item.item.hostname }}"
    state: present
    insertafter: EOF
  when: not item.found
  with_items: "{{ line_is_present.results }}"