feat(mod::remoteip): use Puppet 4+ data type

manifests/mod/remoteip.pp

@@ -1,9 +1,37 @@
+# @summary Setup and load Apache `mod_remoteip`
+#
+# @see https://httpd.apache.org/docs/current/mod/mod_remoteip.html
+#
+# @param header
+#   The header field in which `mod_remoteip` will look for the useragent IP.
+#
+# @param proxy_ips
+#   A list of IP addresses, IP blocks or hostname that are trusted to set a
+#   valid value inside specified header. Unlike the `$trusted_proxy_ips`
+#   parameter, any IP address (including private addresses) presented by these
+#   proxies will trusted by `mod_remoteip`.
+#
+# @param proxies_header
+#   A header into which `mod_remoteip` will collect a list of all of the
+#   intermediate client IP addresses trusted to resolve the useragent IP of the
+#   request (e.g. `X-Forwarded-By`).
+#
+# @param trusted_proxy_ips
+#   A list of IP addresses, IP blocks or hostname that are trusted to set a
+#   valid value inside the specified header. Unlike the `$proxy_ips` parameter,
+#   any private IP presented by these proxies will be disgarded by
+#   `mod_remoteip`.
+#
+# @param apache_version
+#   A version string used to validate that your apache version supports
+#   `mod_remoteip`. If not specified, `$::apache::apache_version` is used.
+#
 class apache::mod::remoteip (
-  $header            = 'X-Forwarded-For',
-  $proxy_ips         = [ '127.0.0.1' ],
-  $proxies_header    = undef,
-  $trusted_proxy_ips = undef,
-  $apache_version    = undef,
+  String                        $header            = 'X-Forwarded-For',
+  Optional[Array[Stdlib::Host]] $proxy_ips         = [ '127.0.0.1' ],
+  Optional[String]              $proxies_header    = undef,
+  Optional[Array[Stdlib::Host]] $trusted_proxy_ips = undef,
+  Optional[String]              $apache_version    = undef,
 ) {
   include ::apache
   $_apache_version = pick($apache_version, $apache::apache_version)