Add elasticsearch exporter. Drop Puppet 3 support.

manifests/elasticsearch_exporter.pp

@@ -0,0 +1,136 @@
+# Class: prometheus::elasticsearch_exporter
+#
+# This module manages prometheus node elasticsearch_exporter
+#
+# Parameters:
+#  [*arch*]
+#  Architecture (amd64 or i386)
+#
+#  [*bin_dir*]
+#  Directory where binaries are located
+#
+#  [*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
+#
+#  [*listen_address*]
+#  Address to listen on for web interface and telemetry. (default ":9108")
+#
+#  [*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')
+#
+#  [*uri*]
+#  HTTP API address of an Elasticsearch node. (default "http://localhost:9200")
+#
+#  [*user*]
+#  User which runs the service
+#
+#  [*version*]
+#  The binary release version
+class prometheus::elasticsearch_exporter (
+  $arch                         = $::prometheus::params::arch,
+  $bin_dir                      = $::prometheus::params::bin_dir,
+  $download_extension           = $::prometheus::params::elasticsearch_exporter_download_extension,
+  $download_url                 = undef,
+  $download_url_base            = $::prometheus::params::elasticsearch_exporter_download_url_base,
+  $extra_groups                 = $::prometheus::params::elasticsearch_exporter_extra_groups,
+  $extra_options                = '',
+  $group                        = $::prometheus::params::elasticsearch_exporter_group,
+  $init_style                   = $::prometheus::params::init_style,
+  $install_method               = $::prometheus::params::install_method,
+  $listen_address               = $::prometheus::params::elasticsearch_exporter_listen_address,
+  Boolean $manage_group         = true,
+  Boolean $manage_service       = true,
+  Boolean $manage_user          = true,
+  $os                           = $::prometheus::params::os,
+  $package_ensure               = $::prometheus::params::elasticsearch_exporter_package_ensure,
+  $package_name                 = $::prometheus::params::elasticsearch_exporter_package_name,
+  Boolean $purge_config_dir     = true,
+  Boolean $restart_on_change    = true,
+  Boolean $service_enable       = true,
+  $service_ensure               = 'running',
+  $service_name                 = 'elasticsearch_exporter',
+  $uri                          = $::prometheus::params::elasticsearch_exporter_uri,
+  $user                         = $::prometheus::params::elasticsearch_exporter_user,
+  $version                      = $::prometheus::params::elasticsearch_exporter_version,
+) inherits prometheus::params {
+  $real_download_url    = pick($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,
+  }
+
+  $options = "-es.uri ${uri} -web.listen-address ${listen_address} ${extra_options}"
+
+  prometheus::daemon { 'elasticsearch_exporter':
+    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            => $options,
+    init_style         => $init_style,
+    service_ensure     => $service_ensure,
+    service_enable     => $service_enable,
+    manage_service     => $manage_service,
+  }
+}

manifests/params.pp

@@ -26,6 +26,16 @@
   $config_template = 'prometheus/prometheus.yaml.erb'
   $download_extension = 'tar.gz'
   $download_url_base = 'https://github.com/prometheus/prometheus/releases'
+  $elasticsearch_exporter_download_extension = 'tar.gz'
+  $elasticsearch_exporter_download_url_base = 'https://github.com/justwatchcom/elasticsearch_exporter/releases'
+  $elasticsearch_exporter_extra_groups = []
+  $elasticsearch_exporter_group = 'elasticsearch-exporter'
+  $elasticsearch_exporter_listen_address = ':9108'
+  $elasticsearch_exporter_package_ensure = 'latest'
+  $elasticsearch_exporter_package_name = 'elasticsearch_exporter'
+  $elasticsearch_exporter_uri = 'http://localhost:9200'
+  $elasticsearch_exporter_user = 'elasticsearch-exporter'
+  $elasticsearch_exporter_version = '1.0.1'
   $extra_groups = []
   $global_config = { 'scrape_interval'=> '15s', 'evaluation_interval'=> '15s', 'external_labels'=> { 'monitor'=>'master'}}
   $group = 'prometheus'