Pass SSH port as an integer

profile/manifests/sshd.pp

 # SSH service
 class profile::sshd (
-  String  $ssh_port          = '22',
+  Integer $ssh_port          = 22,
   Boolean $permit_root_login = false,
 ) {
 
   firewall { '100 allow SSH access':
-    dport  => $ssh_port,
+    dport  => String($ssh_port),
     proto  => 'tcp',
     action => 'accept',
   }
@@ -16,7 +16,7 @@ class profile::sshd (
     options => {
       'PasswordAuthentication' => 'no',
       'PermitRootLogin'        => $permit_root_login_str,
-      'Port'                   => [ $ssh_port ],
+      'Port'                   => [ String($ssh_port) ],
       'X11Forwarding'          => 'no',
     },
   }
@@ -24,7 +24,7 @@ class profile::sshd (
   include tor
 
   tor::daemon::onion_service { 'ssh':
-    ports => [ $ssh_port ],
+    ports => [ String($ssh_port) ],
   }
 
 }