networkd/batman: add DNS to RA

network/files/systemd/batadv.network.j2

@@ -25,6 +25,14 @@ Managed=false
 OtherInformation=true
 RouterLifetimeSec=1800
 RouterPreference=high
+EmitDNS=true
+{%- for ns in pillar['domains'][domain]['IPv6']['name_servers']|sort %}
+DNS={{ ns }}
+{%- endfor %}
+EmitDomains=true
+{%- for domain in salt['pillar.get']('domains:%s:search'|format(domain))|sort %}
+Domains={{ domain }}
+{%- endfor %}
 
 {%- for prefix,prefixval in pillar['domains'][domain]['IPv6']['subnets'].items() | sort %}
 {%- if not ('announce' in prefixval and prefixval['announce'] == False ) %}