1 files changed, 30 insertions, 0 deletions
diff --git a/lib/gitlab/metrics/sidekiq_middleware.rb b/lib/gitlab/metrics/sidekiq_middleware.rb
new file mode 100644
index 00000000000..ec10707d1fb
--- /dev/null
+++ b/lib/gitlab/metrics/sidekiq_middleware.rb
@@ -0,0 +1,30 @@
+module Gitlab
+  module Metrics
+    # Sidekiq middleware for tracking jobs.
+    #
+    # This middleware is intended to be used as a server-side middleware.
+    class SidekiqMiddleware
+      def call(worker, message, queue)
+        # We don't want to track the MetricsWorker itself as otherwise we'll end
+        # up in an infinite loop.
+        if worker.class == MetricsWorker
+          yield
+          return
+        end
+
+        trans = Transaction.new
+
+        begin
+          trans.run { yield }
+        ensure
+          tag_worker(trans, worker)
+          trans.finish
+        end
+      end
+
+      def tag_worker(trans, worker)
+        trans.add_tag(:action, "#{worker.class.name}#perform")
+      end
+    end
+  end
+end