lib/ddtrace/contrib/rails/patcher.rb in ddtrace-0.17.2 vs lib/ddtrace/contrib/rails/patcher.rb in ddtrace-0.17.3

@@ -30,14 +30,16 @@
             Datadog::Contrib::Rails::Patcher.before_intialize(self)
           end
         end
 
         def before_intialize(app)
-          # Middleware must be added before the application is initialized.
-          # Otherwise the middleware stack will be frozen.
-          # Sometimes we don't want to activate middleware e.g. OpenTracing, etc.
-          add_middleware(app) if Datadog.configuration[:rails][:middleware]
+          do_once(:rails_before_initialize, for: app) do
+            # Middleware must be added before the application is initialized.
+            # Otherwise the middleware stack will be frozen.
+            # Sometimes we don't want to activate middleware e.g. OpenTracing, etc.
+            add_middleware(app) if Datadog.configuration[:rails][:middleware]
+          end
         end
 
         def add_middleware(app)
           # Add trace middleware
           app.middleware.insert_before(0, Datadog::Contrib::Rack::TraceMiddleware)
@@ -57,13 +59,15 @@
             Datadog::Contrib::Rails::Patcher.after_intialize(self)
           end
         end
 
         def after_intialize(app)
-          # Finish configuring the tracer after the application is initialized.
-          # We need to wait for some things, like application name, middleware stack, etc.
-          setup_tracer
-          instrument_rails
+          do_once(:rails_after_initialize, for: app) do
+            # Finish configuring the tracer after the application is initialized.
+            # We need to wait for some things, like application name, middleware stack, etc.
+            setup_tracer
+            instrument_rails
+          end
         end
 
         # Configure Rails tracing with settings
         def setup_tracer
           Datadog::Contrib::Rails::Framework.setup