ffdo-ansible/roles/common-net/templates/hosts.j2

127.0.0.1   localhost
127.0.1.1   {{ inventory_hostname }} {{ inventory_hostname_short }}

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