feat: add haproxy2 role (#322)

- add basic haproxy2 role
- add peers and resolvers
- add haproxy2+ metrics frontend

Reviewed-on: https://git.query.consul/unkinben/puppet-prod/pulls/322

site/profiles/manifests/haproxy/dns.pp

@@ -1,7 +1,6 @@
 # profiles::haproxy::dns
 class profiles::haproxy::dns (
-  Stdlib::IP::Address $vrrp_ipaddr,
-  Boolean             $vrrp_master = false,
+  Stdlib::IP::Address $ipaddr,
   Array[Stdlib::Fqdn] $vrrp_cnames = [],
   Array[Stdlib::Fqdn] $cnames = [],
   Integer             $order  = 10,
@@ -28,24 +27,37 @@ class profiles::haproxy::dns (
     }
   }
 
-  # export a/cnames for haproxy applications
-  if $vrrp_master {
-    profiles::dns::record { "${facts['networking']['fqdn']}_vrrp_${location_environment}-halb-vrrp":
-      value  => $vrrp_ipaddr,
-      type   => 'A',
-      record => "${location_environment}-halb-vrrp",
-      zone   => $::facts['networking']['domain'],
-      order  => $order,
-    }
+  # if it is, find hosts, sort them so they dont cause changes every run
+  $servers_array = sort(query_nodes(
+    "enc_role='${facts['enc_role']}' and
+      country='${facts['country']}' and
+      region='${facts['region']}' and
+      environment='${facts['environment']}'",
+    'networking.fqdn'
+  ))
 
-    $vrrp_cnames.each |$cname| {
-      profiles::dns::record { "${::facts['networking']['fqdn']}_${cname}_CNAME":
-        value  => "${location_environment}-halb-vrrp",
-        type   => 'CNAME',
-        record => "${cname}.",
+  # give enough time for a few hosts to be provisioned
+  if length($servers_array) >= 3 {
+
+    # if this is the first host in the returned filter, export a/cnames for haproxy applications
+    if $servers_array[0] == $trusted['certname'] {
+      profiles::dns::record { "${facts['networking']['fqdn']}_vrrp_${location_environment}-halb-vrrp":
+        value  => $ipaddr,
+        type   => 'A',
+        record => "${location_environment}-halb-vrrp",
         zone   => $::facts['networking']['domain'],
         order  => $order,
       }
+
+      $vrrp_cnames.each |$cname| {
+        profiles::dns::record { "${::facts['networking']['fqdn']}_${cname}_CNAME":
+          value  => "${location_environment}-halb-vrrp",
+          type   => 'CNAME',
+          record => "${cname}.",
+          zone   => $::facts['networking']['domain'],
+          order  => $order,
+        }
+      }
     }
   }
 }