chore: set default nameservers (#240)

- if no nameservers are returned from puppetdb query, use default

Reviewed-on: https://git.query.consul/unkinben/puppet-prod/pulls/240

site/profiles/manifests/dns/base.pp

@@ -2,7 +2,7 @@
 class profiles::dns::base (
   String $ns_role = undef,
   Array  $search  = [],
-  Array  $nameservers = ['8.8.8.8', '1.1.1.1'],
+  Array  $nameservers = ['198.18.13.12', '198.18.13.13'],
   Enum[
     'all',
     'region',
@@ -23,6 +23,12 @@ class profiles::dns::base (
     }
   }
 
+  # if nameservers not returned from puppetdb, use default
+  $use_nameservers = empty($nameserver_array) ? {
+    true  => $nameservers,
+    false => $nameserver_array,
+  }
+
   # if search is undef, fallback to domainname from facts
   if $search == [] {
     $search_array = [$::facts['networking']['domain']]
@@ -32,7 +38,7 @@ class profiles::dns::base (
 
   # include resolvconf class
   class { 'profiles::dns::resolvconf':
-    nameservers    => sort($nameserver_array),
+    nameservers    => sort($use_nameservers),
     search_domains => sort($search_array),
   }