postfix exporter support

data/defaults.yaml

@@ -314,3 +314,11 @@ prometheus::apache_exporter::package_ensure: 'latest'
 prometheus::apache_exporter::package_name: 'apache_exporter'
 prometheus::apache_exporter::user: 'apache-exporter'
 prometheus::apache_exporter::version: '0.5.0'
+prometheus::postfix_exporter::download_extension: 'tar.gz'
+prometheus::postfix_exporter::download_url_base: 'https://github.com/kumina/postfix_exporter/releases'
+prometheus::postfix_exporter::extra_groups: []
+prometheus::postfix_exporter::group: 'postfix-exporter'
+prometheus::postfix_exporter::package_ensure: 'latest'
+prometheus::postfix_exporter::package_name: 'postfix_exporter'
+prometheus::postfix_exporter::user: 'postfix-exporter'
+prometheus::postfix_exporter::version: '0.2.0'

manifests/postfix_exporter.pp

@@ -0,0 +1,140 @@
+# Class: prometheus::postfix_exporter
+#
+# This module manages prometheus postfix_exporter
+#
+# Parameters:
+#  [*arch*]
+#  Architecture (amd64 or i386)
+#
+#  [*bin_dir*]
+#  Directory where binaries are located
+#
+#  [*config_mode*]
+#  The permissions of the configuration files
+#
+#  [*download_extension*]
+#  Extension for the release binary archive
+#
+#  [*download_url*]
+#  Complete URL corresponding to the where the release binary archive can be downloaded
+#
+#  [*download_url_base*]
+#  Base URL for the binary archive
+#
+#  [*extra_groups*]
+#  Extra groups to add the binary user to
+#
+#  [*extra_options*]
+#  Extra options added to the startup command
+#
+#  [*group*]
+#  Group under which the binary is running
+#
+#  [*init_style*]
+#  Service startup scripts style (e.g. rc, upstart or systemd)
+#
+#  [*install_method*]
+#  Installation method: url or package (only url is supported currently)
+#
+#  [*manage_group*]
+#  Whether to create a group for or rely on external code for that
+#
+#  [*manage_service*]
+#  Should puppet manage the service? (default true)
+#
+#  [*manage_user*]
+#  Whether to create user or rely on external code for that
+#
+#  [*os*]
+#  Operating system (linux is the only one supported)
+#
+#  [*package_ensure*]
+#  If package, then use this for package ensure default 'latest'
+#
+#  [*package_name*]
+#  The binary package name - not available yet
+#
+#  [*purge_config_dir*]
+#  Purge config files no longer generated by Puppet
+#
+#  [*restart_on_change*]
+#  Should puppet restart the service on configuration change? (default true)
+#
+#  [*service_enable*]
+#  Whether to enable the service from puppet (default true)
+#
+#  [*service_ensure*]
+#  State ensured for the service (default 'running')
+#
+#  [*user*]
+#  User which runs the service
+#
+#  [*version*]
+#  The binary release version
+
+class prometheus::postfix_exporter (
+  String[1] $download_extension,
+  Variant[Stdlib::HTTPSUrl, Stdlib::HTTPUrl] $download_url_base,
+  Array[String[1]] $extra_groups,
+  String[1] $group,
+  String[1] $package_ensure,
+  String[1] $package_name,
+  String[1] $user,
+  String[1] $version,
+  Boolean $purge_config_dir                                          = true,
+  Boolean $restart_on_change                                         = true,
+  Boolean $service_enable                                            = true,
+  String[1] $service_ensure                                          = 'running',
+  String $service_name                                               = 'postfix_exporter',
+  String[1] $init_style                                              = $prometheus::init_style,
+  String[1] $install_method                                          = $prometheus::install_method,
+  Boolean $manage_group                                              = true,
+  Boolean $manage_service                                            = true,
+  Boolean $manage_user                                               = true,
+  String[1] $os                                                      = $prometheus::os,
+  String $extra_options                                              = '',
+  Hash[String, Scalar] $env_vars                                     = {},
+  Optional[Variant[Stdlib::HTTPSUrl, Stdlib::HTTPUrl]] $download_url = undef,
+  String[1] $config_mode                                             = $prometheus::config_mode,
+  String[1] $arch                                                    = $prometheus::real_arch,
+  Stdlib::Absolutepath $bin_dir                                      = $prometheus::bin_dir,
+  Boolean $export_scrape_job                                         = false,
+  Stdlib::Port $scrape_port                                          = 9154,
+  String[1] $scrape_job_name                                         = 'postfix',
+) inherits prometheus {
+
+  #Please provide the download_url for versions < 0.9.0
+  $real_download_url    = pick($download_url,"${download_url_base}/download/v${version}/${package_name}-${version}.${os}-${arch}.${download_extension}")
+  $notify_service = $restart_on_change ? {
+    true    => Service[$service_name],
+    default => undef,
+  }
+
+  prometheus::daemon { $service_name:
+    install_method     => $install_method,
+    version            => $version,
+    download_extension => $download_extension,
+    os                 => $os,
+    arch               => $arch,
+    real_download_url  => $real_download_url,
+    bin_dir            => $bin_dir,
+    notify_service     => $notify_service,
+    package_name       => $package_name,
+    package_ensure     => $package_ensure,
+    manage_user        => $manage_user,
+    user               => $user,
+    extra_groups       => $extra_groups,
+    group              => $group,
+    manage_group       => $manage_group,
+    purge              => $purge_config_dir,
+    options            => $extra_options,
+    env_vars           => $env_vars,
+    init_style         => $init_style,
+    service_ensure     => $service_ensure,
+    service_enable     => $service_enable,
+    manage_service     => $manage_service,
+    export_scrape_job  => $export_scrape_job,
+    scrape_port        => $scrape_port,
+    scrape_job_name    => $scrape_job_name,
+  }
+}