1 files changed, 18 insertions, 0 deletions
diff --git a/config/initializers/7_prometheus_metrics.rb b/config/initializers/7_prometheus_metrics.rb
new file mode 100644
index 00000000000..54c797e0714
--- /dev/null
+++ b/config/initializers/7_prometheus_metrics.rb
@@ -0,0 +1,18 @@
+require 'prometheus/client'
+
+Prometheus::Client.configure do |config|
+  config.logger = Rails.logger
+
+  config.initial_mmap_file_size = 4 * 1024
+  config.multiprocess_files_dir = ENV['prometheus_multiproc_dir']
+
+  if Rails.env.development? || Rails.env.test?
+    config.multiprocess_files_dir ||= Rails.root.join('tmp/prometheus_multiproc_dir')
+  end
+end
+
+Sidekiq.configure_server do |config|
+  config.on(:startup) do
+    Gitlab::Metrics::SidekiqMetricsExporter.instance.start
+  end
+end