1 files changed, 19 insertions, 0 deletions
diff --git a/lib/gitlab/cluster/mixins/unicorn_http_server.rb b/lib/gitlab/cluster/mixins/unicorn_http_server.rb
new file mode 100644
index 00000000000..765fd0c2baa
--- /dev/null
+++ b/lib/gitlab/cluster/mixins/unicorn_http_server.rb
@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module Cluster
+    module Mixins
+      module UnicornHttpServer
+        def self.prepended(base)
+          raise 'missing method Unicorn::HttpServer#reexec' unless base.method_defined?(:reexec)
+        end
+
+        def reexec
+          Gitlab::Cluster::LifecycleEvents.do_before_phased_restart
+
+          super
+        end
+      end
+    end
+  end
+end