127.0.0.1       localhost
{% if network.loopback_in_hosts | default(True) %}
127.0.1.1       {{ inventory_hostname }}  {{ short_hostname }}
{% else %}
{{ "%-15s" | format(ansible_facts['default_ipv4'].address) }} {{ inventory_hostname }}  {{ short_hostname }}
{% endif %}

# The following lines are desirable for IPv6 capable hosts
::1     localhost ip6-localhost ip6-loopback
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters