---

- name: hostname
  hostname:
    name: "{{inventory_hostname}}"
  when: not root_target_directory is defined


- name: localhost ipv4 entry
  lineinfile:
    dest: "{{ root_target_directory | default('') }}/etc/hosts"
    regexp: '^127\.0\.0\.1'
    line: "127.0.0.1 localhost {{inventory_hostname}}{% if inventory_hostname != inventory_hostname_short %} {{inventory_hostname_short}}{% endif %}"

- name: localhost ipv6 entry
  lineinfile:
    dest: "{{ root_target_directory | default('') }}/etc/hosts"
    regexp: '^::1'
    line: "::1 localhost ip6-localhost ip6-loopback {{inventory_hostname}}{% if inventory_hostname != inventory_hostname_short %} {{inventory_hostname_short}}{% endif %}"