Add parameter "tag" to concat

allow a user defined tag or list of tags for fragments to build the
concat_file out of

Author: Lightning-

manifests/init.pp

@@ -82,6 +82,9 @@
 # @param create_empty_file
 #   Specifies whether to create an empty file if no fragments are defined. Defaults to true.
 #
+# @param tag
+#   Specifies a custom tag or list of custom tags for gatherinng the fragments to combine.
+#
 define concat (
   Enum['present', 'absent']          $ensure                  = 'present',
   Stdlib::Absolutepath               $path                    = $name,
@@ -103,6 +106,7 @@
   Boolean                            $force                   = false,
   Boolean                            $create_empty_file       = true,
   Enum['plain', 'yaml', 'json', 'json-array', 'json-pretty', 'json-array-pretty'] $format = 'plain',
+  Optional[Variant[String[1], Array[String[1], 1]]]                               $tag    = undef,
 ) {
   $safe_name            = regsubst($name, '[\\\\/:~\n\s\+\*\(\)@]', '_', 'G')
   $default_warn_message = "# This file is managed by Puppet. DO NOT EDIT.\n"
@@ -122,9 +126,15 @@
     }
   }
 
+  if $tag =~ Undef {
+    $safe_names = $safe_name
+  } else {
+    $safe_names = flatten($safe_name, $tag)
+  }
+
   if $ensure == 'present' {
     concat_file { $name:
-      tag                     => $safe_name,
+      tag                     => $safe_names,
       path                    => $path,
       owner                   => $owner,
       group                   => $group,
@@ -156,7 +166,7 @@
   } else {
     concat_file { $name:
       ensure => $ensure,
-      tag    => $safe_name,
+      tag    => $safe_names,
       path   => $path,
       backup => $backup,
     }