fix: exclude docker0 interfaces (#282)

- docker0 is the same on many hosts

Reviewed-on: https://git.query.consul/unkinben/puppet-prod/pulls/282

site/profiles/manifests/dns/base.pp

@@ -46,8 +46,8 @@ class profiles::dns::base (
   # export dns records for client
   $facts['networking']['interfaces'].each | $interface, $data | {
 
-    # exclude those without ipv4 address, lo and anycast addresses
-    if $data['ip'] and $interface != 'lo' and $interface !~ /^anycast[0-9]$/ {
+    # exclude those without ipv4 address, lo, docker0 and anycast addresses
+    if $data['ip'] and $interface != 'lo' and $interface != 'docker0' and $interface !~ /^anycast[0-9]$/ {
 
       # use defaults for the primary_interface
       if $interface == $primary_interface {