feat: add vrrp to halb

- update keepalived module to 5.1.0
- add keepalived::vrrp::* to be deep merged in hiera
- add vrrp dns configuration
- add vrrp instance/script to halb in syd1

site/profiles/manifests/haproxy/dns.pp

@@ -1,5 +1,8 @@
 # profiles::haproxy::dns
 class profiles::haproxy::dns (
+  Stdlib::IP::Address $vrrp_ipaddr,
+  Boolean             $vrrp_master = false,
+  Array[Stdlib::Fqdn] $vrrp_cnames = [],
   Array[Stdlib::Fqdn] $cnames = [],
   Integer             $order  = 10,
 ){
@@ -24,4 +27,25 @@ class profiles::haproxy::dns (
       order  => $order,
     }
   }
+
+  # 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,
+    }
+
+    $vrrp_cnames.each |$cname| {
+      profiles::dns::record { "${::facts['networking']['fqdn']}_${cname}_CNAME":
+        value  => "${location_environment}-halb-vrrp",
+        type   => 'CNAME',
+        record => "${cname}.",
+        zone   => $::facts['networking']['domain'],
+        order  => $order,
+      }
+    }
+  }
 }