# localhost
127.0.0.1   localhost
::1         localhost

# IPv6
fe00::0     ip6-localnet
ff00::0     ip6-multicast
ff02::1     ip6-allnodes
ff02::2     ip6-allrouters
ff02::3     ip6-allhosts

# {{ ansible_hostname }}
{% if ansible_default_ipv4.address is defined %}
{{ ansible_default_ipv4.address }}     {{ ansible_fqdn }} {{ ansible_hostname }}
{% endif %}
{% if ansible_default_ipv6.address is defined %}
{{ ansible_default_ipv6.address }}     {{ ansible_fqdn }} {{ ansible_hostname }}
{% endif %}