From 7117b830c7c0069ff9591147f52ce15c1bf2c79a Mon Sep 17 00:00:00 2001
From: Grant Slater <git@firefishy.com>
Date: Wed, 1 Jun 2016 23:59:55 +0100
Subject: [PATCH] imagery: sysctl to enable TFO on socket listen

---
 roles/imagery.rb | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/roles/imagery.rb b/roles/imagery.rb
index ba3009852..16195af6f 100644
--- a/roles/imagery.rb
+++ b/roles/imagery.rb
@@ -27,6 +27,12 @@ default_attributes(
         "kernel.sched_min_granularity_ns" => 10000000,
         "kernel.sched_wakeup_granularity_ns" => 15000000
       }
+    },
+    :kernel_tfo_listen_enable => {
+      :comment => "Enable TCP Fast Open for listening sockets",
+      :parameters => {
+        "net.ipv4.tcp_fastopen" => 3
+      }
     }
   },
   :nginx => {
-- 
2.43.2