stats_exporter: Move data from hiera to puppet class

This enables puppet-strings to pick up the data. There is no
OS-specific data in hiera:

```
$ git grep statsd data/
$
```

REFERENCE.md

@@ -13492,6 +13492,8 @@ Data type: `String`
 
 Extension for the release binary archive
 
+Default value: `'tar.gz'`
+
 ##### <a name="-prometheus--statsd_exporter--download_url"></a>`download_url`
 
 Data type: `Optional[Prometheus::Uri]`
@@ -13506,12 +13508,16 @@ Data type: `Prometheus::Uri`
 
 Base URL for the binary archive
 
+Default value: `'https://github.com/prometheus/statsd_exporter/releases'`
+
 ##### <a name="-prometheus--statsd_exporter--extra_groups"></a>`extra_groups`
 
 Data type: `Array`
 
 Extra groups to add the binary user to
 
+Default value: `[]`
+
 ##### <a name="-prometheus--statsd_exporter--extra_options"></a>`extra_options`
 
 Data type: `Optional[String[1]]`
@@ -13526,6 +13532,8 @@ Data type: `String[1]`
 
 Group under which the binary is running
 
+Default value: `'statsd-exporter'`
+
 ##### <a name="-prometheus--statsd_exporter--init_style"></a>`init_style`
 
 Data type: `Prometheus::Initstyle`
@@ -13580,12 +13588,16 @@ Data type: `String[1]`
 
 If package, then use this for package ensure default 'latest'
 
+Default value: `'latest'`
+
 ##### <a name="-prometheus--statsd_exporter--package_name"></a>`package_name`
 
 Data type: `String[1]`
 
 The binary package name - not available yet
 
+Default value: `'statsd_exporter'`
+
 ##### <a name="-prometheus--statsd_exporter--purge_config_dir"></a>`purge_config_dir`
 
 Data type: `Boolean`
@@ -13624,6 +13636,8 @@ Data type: `String[1]`
 
 Name of the statsd exporter service (default 'statsd_exporter')
 
+Default value: `'statsd_exporter'`
+
 ##### <a name="-prometheus--statsd_exporter--mappings"></a>`mappings`
 
 Data type: `Array[Hash]`
@@ -13635,12 +13649,16 @@ The hiera array for mappings:
       processor: '$2'
       action: '$1'
 
+Default value: `[]`
+
 ##### <a name="-prometheus--statsd_exporter--user"></a>`user`
 
 Data type: `String[1]`
 
 User which runs the service
 
+Default value: `'statsd-exporter'`
+
 ##### <a name="-prometheus--statsd_exporter--version"></a>`version`
 
 Data type: `String[1]`
@@ -13671,6 +13689,8 @@ Data type: `Stdlib::Absolutepath`
 
 
 
+Default value: `'/etc/statsd-exporter-mapping.yaml'`
+
 ##### <a name="-prometheus--statsd_exporter--export_scrape_job"></a>`export_scrape_job`
 
 Data type: `Boolean`

data/defaults.yaml

@@ -178,13 +178,3 @@ prometheus::snmp_exporter::package_ensure: 'latest'
 prometheus::snmp_exporter::package_name: 'snmp_exporter'
 prometheus::snmp_exporter::service_name: 'snmp_exporter'
 prometheus::snmp_exporter::user: 'snmp-exporter'
-prometheus::statsd_exporter::download_extension: 'tar.gz'
-prometheus::statsd_exporter::download_url_base: 'https://github.com/prometheus/statsd_exporter/releases'
-prometheus::statsd_exporter::extra_groups: []
-prometheus::statsd_exporter::group: 'statsd-exporter'
-prometheus::statsd_exporter::mapping_config_path: '/etc/statsd-exporter-mapping.yaml'
-prometheus::statsd_exporter::mappings: []
-prometheus::statsd_exporter::package_ensure: 'latest'
-prometheus::statsd_exporter::package_name: 'statsd_exporter'
-prometheus::statsd_exporter::service_name: 'statsd_exporter'
-prometheus::statsd_exporter::user: 'statsd-exporter'

manifests/statsd_exporter.pp

@@ -59,16 +59,16 @@
 # @param proxy_type
 #  Optional proxy server type (none|http|https|ftp)
 class prometheus::statsd_exporter (
-  String $download_extension,
-  Prometheus::Uri $download_url_base,
-  Array $extra_groups,
-  String[1] $group,
-  Stdlib::Absolutepath $mapping_config_path,
-  String[1] $package_ensure,
-  String[1] $package_name,
-  String[1] $service_name,
-  Array[Hash] $mappings,
-  String[1] $user,
+  String $download_extension = 'tar.gz',
+  Prometheus::Uri $download_url_base = 'https://github.com/prometheus/statsd_exporter/releases',
+  Array $extra_groups = [],
+  String[1] $group = 'statsd-exporter',
+  Stdlib::Absolutepath $mapping_config_path = '/etc/statsd-exporter-mapping.yaml',
+  String[1] $package_ensure = 'latest',
+  String[1] $package_name = 'statsd_exporter',
+  String[1] $service_name = 'statsd_exporter',
+  Array[Hash] $mappings = [],
+  String[1] $user = 'statsd-exporter',
   # renovate: depName=prometheus/statsd_exporter
   String[1] $version                                         = '0.26.1',
   String[1] $arch                                            = $prometheus::real_arch,