unwind: Initial version of role

roles/unwind/templates/unwind.conf.j2

@@ -0,0 +1,10 @@
+{% if network_dns_servers is defined %}
+forwarder {
+{%   for addr in network_dns_servers %}
+    {{ addr }} port 853 authentication name "{{ lookup('community.general.dig', addr + '/PTR')[:-1] }}" DoT
+{%   endfor %}
+}
+preference { DoT }
+{% else %}
+preference { oDoT-autoconf }
+{% endif %}