feat: add mpls ldp to frrouting module

- update frr templates (add ldp/mpls)
- add params to frr class to manage mpls ldp
- add sysctl settings to hieradata for mpls
- load kernel modules for mpls
- add selinux module for frr

modules/frrouting/manifests/init.pp

@@ -10,12 +10,17 @@ class frrouting (
   Array[String] $ospfd_redistribute = [],
   Array[String] $ospfd_networks     = [],
   Boolean $ospfd_default_originate_always = false,
+  Boolean $mpls_te_enabled                   = false,
+  Optional[String] $mpls_ldp_router_id       = undef,
+  Optional[String] $mpls_ldp_transport_addr  = undef,
+  Array[String] $mpls_ldp_interfaces         = [],
 ) {
 
   $daemons_defaults = {
     'bgpd'    => false,
     'ospfd'   => true,
     'ospf6d'  => false,
+    'ldpd'    => false,
     'ripd'    => false,
     'ripngd'  => false,
     'isisd'   => false,
@@ -32,7 +37,7 @@ class frrouting (
     'staticd' => false,
   }
 
-  $daemons_merged = merge($daemons, $daemons_defaults)
+  $daemons_merged = merge($daemons_defaults, $daemons)
 
   if $manage_package {
     package { $package_name:
@@ -62,4 +67,23 @@ class frrouting (
       hasrestart => true,
     }
   }
+
+  if $mpls_ldp_router_id and $mpls_ldp_transport_addr and !empty($mpls_ldp_interfaces) {
+    file { '/etc/modules-load.d/mpls_ldp_modules.conf':
+      ensure  => file,
+      content => @(EOT/L),
+        # Load MPLS Kernel Modules
+        mpls_router
+        mpls_iptunnel
+        | EOT
+    }
+
+    ['mpls_router', 'mpls_iptunnel'].each |$mod| {
+      exec { "load_${mod}":
+        command => "/sbin/modprobe ${mod}",
+        unless  => "/sbin/lsmod | /bin/grep -q ^${mod}",
+        path    => ['/sbin', '/bin', '/usr/sbin', '/usr/bin'],
+      }
+    }
+  }
 }