Set database locale to C.UTF-8

* EN_us.UTF-8 choice breaks install if the locale is not installed on the system, revert default DB locale to C.UTF-8
* Introduce database_locale to change it

Kudos @JGodin-C2C @saimonn

References
puppetlabs/puppetlabs-puppetdb#412
puppetlabs/puppetlabs-puppetdb#421
puppetlabs/puppetlabs-puppetdb#422

Author: d1nuc0m

REFERENCE.md

@@ -919,6 +919,7 @@ The following parameters are available in the `puppetdb::database::postgresql` c
 * [`listen_addresses`](#-puppetdb--database--postgresql--listen_addresses)
 * [`puppetdb_server`](#-puppetdb--database--postgresql--puppetdb_server)
 * [`database_name`](#-puppetdb--database--postgresql--database_name)
+* [`database_locale`](#-puppetdb--database--postgresql--database_locale)
 * [`database_username`](#-puppetdb--database--postgresql--database_username)
 * [`database_password`](#-puppetdb--database--postgresql--database_password)
 * [`database_port`](#-puppetdb--database--postgresql--database_port)
@@ -963,6 +964,14 @@ Sets the name of the database. Defaults to `puppetdb`.
 
 Default value: `$puppetdb::params::database_name`
 
+##### <a name="-puppetdb--database--postgresql--database_locale"></a>`database_locale`
+
+Data type: `Any`
+
+Sets the locale of the database. Defaults to `C.UTF-8`.
+
+Default value: `$puppetdb::params::database_locale`
+
 ##### <a name="-puppetdb--database--postgresql--database_username"></a>`database_username`
 
 Data type: `Any`

manifests/database/postgresql.pp

@@ -12,6 +12,9 @@
 # @param database_name
 #   Sets the name of the database. Defaults to `puppetdb`.
 #
+# @param database_locale
+#   Sets the locale of the database. Defaults to `C.UTF-8`.
+#
 # @param database_username
 #   Creates a user for access the database. Defaults to `puppetdb`.
 #
@@ -74,6 +77,7 @@
   $listen_addresses            = $puppetdb::params::database_host,
   $puppetdb_server             = $puppetdb::params::puppetdb_server,
   $database_name               = $puppetdb::params::database_name,
+  $database_locale = $puppetdb::params::database_locale,
   $database_username           = $puppetdb::params::database_username,
   Variant[String[1], Sensitive[String[1]]] $database_password = $puppetdb::params::database_password,
   $database_port               = $puppetdb::params::database_port,
@@ -150,7 +154,7 @@
       user     => $database_username,
       password => $database_password,
       encoding => 'UTF8',
-      locale   => 'en_US.UTF-8',
+      locale   => $database_locale,
       grant    => 'all',
       port     => $port,
     }

manifests/params.pp

@@ -35,6 +35,7 @@
   $database_host          = 'localhost'
   $database_port          = '5432'
   $database_name          = 'puppetdb'
+  $database_locale        = 'C.UTF-8'
   $database_username      = 'puppetdb'
   $database_password      = 'puppetdb'
   $manage_db_password     = true