# IPv4 localhost configuration
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4

# IPv6 localhost configuration
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6

# IPv6 Local addresses (desirable for IPv6 capable hosts)
::1         ip6-localhost ip6-loopback
fe00::0     ip6-localnet
ff00::0     ip6-mcastprefix
ff02::1     ip6-allnodes
ff02::2     ip6-allrouters

{{ ansible_default_ipv4.address }} {{ inventory_hostname }}

{% if enable_all_hosts_update is defined and enable_all_hosts_update %}
  {% for item in groups['all'] %}
    {{ hostvars[item]['ansible_host'] }} {{ item }}
  {% endfor %}
{% endif %}

{% if extra_domain is defined %}
{% for ip, domain_name in extra_domain.items() %}
{{ ip }}  {{ domain_name }}
{% endfor %}
{% endif %}