feat: add new cobbler master

- change cobbler.main.unkin.net to 2098
- change to networkd
- add anycast address for pxeserver
- update dhcp::server hiera with pxeserver address
- frr for el8 cannot set nice
- replace ipxebins class with rpm

modules/frrouting/manifests/init.pp

@@ -59,6 +59,17 @@ class frrouting (
     }
   }
 
+  if $facts['os']['release']['major'] == '8' {
+    systemd::manage_dropin { 'default_nice_level.conf':
+      ensure        => present,
+      unit          => 'frr.service',
+      service_entry => {
+        'Nice' => 0,
+      },
+      notify        => Service['frr'],
+    }
+  }
+
   if $manage_service {
     service { $service_name:
       ensure     => running,