Add pgbouncer_exporter parameter

REFERENCE.md

@@ -393,6 +393,14 @@ Hash of 'postgres_exporter' config parameters.
 
 Default value: `undef`
 
+##### `pgbouncer_exporter`
+
+Data type: `Optional[Hash]`
+
+Hash of 'pgbouncer_exporter' config parameters.
+
+Default value: `undef`
+
 ##### `gitlab_monitor`
 
 Data type: `Optional[Hash]`

manifests/init.pp

@@ -45,6 +45,7 @@
 # @param node_exporter Hash of 'node_exporter' config parameters.
 # @param redis_exporter Hash of 'redis_exporter' config parameters.
 # @param postgres_exporter Hash of 'postgres_exporter' config parameters.
+# @param pgbouncer_exporter Hash of 'pgbouncer_exporter' config parameters.
 # @param gitlab_monitor Deprecated if using Gitlab > 12.3 and < 13.0, unsupported by gitlab omnibus using Gitlab 13+. Hash of 'gitlab_monitor' config parameters.
 # @param gitlab_exporter Hash of 'gitlab_exporter' config parameters.
 # @param pages_external_url External URL of Gitlab Pages.
@@ -144,6 +145,7 @@
   Enum['absent', 'present']      $pgpass_file_ensure              = 'absent',
   Stdlib::Absolutepath           $pgpass_file_location            = '/home/gitlab-consul/.pgpass',
   Optional[Hash]                 $postgres_exporter               = undef,
+  Optional[Hash]                 $pgbouncer_exporter              = undef,
   Optional[Hash]                 $gitlab_monitor                  = undef,
   Optional[Hash]                 $gitlab_exporter                 = undef,
   Optional[String]               $package_name                    = undef,

manifests/omnibus_config.pp

@@ -40,6 +40,7 @@
   $node_exporter = $gitlab::node_exporter
   $redis_exporter = $gitlab::redis_exporter
   $postgres_exporter = $gitlab::postgres_exporter
+  $pgbouncer_exporter = $gitlab::pgbouncer_exporter
   $gitlab_monitor = $gitlab::gitlab_monitor
   $gitlab_exporter = $gitlab::gitlab_exporter
   $pages_external_url = $gitlab::pages_external_url

spec/classes/init_spec.rb

@@ -420,6 +420,18 @@
               with_content(%r{^\s*puma\['worker_timeout'\] = 60$})
           }
         end
+        describe 'pgbouncer_exporter' do
+          let(:params) do
+            { pgbouncer_exporter: {
+              'enable' => true
+            } }
+          end
+
+          it {
+            is_expected.to contain_file('/etc/gitlab/gitlab.rb'). \
+              with_content(%r{^\s*pgbouncer_exporter\['enable'\] = true$})
+          }
+        end
       end
     end
   end

templates/gitlab.rb.erb

@@ -344,6 +344,15 @@ redis_exporter['<%= k -%>'] = <%= decorate(@redis_exporter[k]) %>
 <%- @postgres_exporter.keys.sort.each do |k| -%>
 postgres_exporter['<%= k -%>'] = <%= decorate(@postgres_exporter[k]) %>
 <%- end end -%>
+<%- if @pgbouncer_exporter -%>
+
+################################################################################
+## Prometheus PgBouncer exporter (EE only)
+##! Docs: https://docs.gitlab.com/ee/administration/monitoring/prometheus/pgbouncer_exporter.html
+
+<%- @pgbouncer_exporter.keys.sort.each do |k| -%>
+pgbouncer_exporter['<%= k -%>'] = <%= decorate(@pgbouncer_exporter[k]) %>
+<%- end end -%>
 <%- if @alertmanager -%>
 
 ################################################################################