etcHosts.j2

127.0.0.1 localhost
::1     ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters

{% for item in hosts_data.stdout_lines %}
{{ item }}
{% endfor %}