From dbc4077ba5abeaced91d99f55ef876584f55ed69 Mon Sep 17 00:00:00 2001
From: Nobuto Murata <nobuto.murata@canonical.com>
Date: Thu, 14 Oct 2021 09:54:46 +0900
Subject: [PATCH] Ease KeepAliveTimeout

Apache2's default value for KeepAliveTimeout is 5 seconds, which is okay
for general web-page serving use cases. However, connections from a web
browser to Horizon application can be terminated unnecessarily during
multiple requests in a session due to the short KeepAliveTimeout.

Let's ease KeepAliveTimeout to 75 seconds, which is fairly standard for
services behind a reverse proxy since it's the default value of nginx.

Closes-Bug: #1947010
Change-Id: Iff9357e5efb7937927a8d0a6de072d4afaa98906
---
 templates/default     | 2 ++
 templates/default-ssl | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/templates/default b/templates/default
index 1ee4966f..4a4c38a3 100644
--- a/templates/default
+++ b/templates/default
@@ -34,4 +34,6 @@
 
         CustomLog ${APACHE_LOG_DIR}/access.log combined
 
+        KeepAliveTimeout 75
+        MaxKeepAliveRequests 1000
 </VirtualHost>
diff --git a/templates/default-ssl b/templates/default-ssl
index 71c05e3d..e619b137 100644
--- a/templates/default-ssl
+++ b/templates/default-ssl
@@ -55,6 +55,8 @@ NameVirtualHost *:{{ 443 }}
 {% endif %}
     Header set X-XSS-Protection "1; mode=block"
     Header set X-Content-Type-Options "nosniff"
+    KeepAliveTimeout 75
+    MaxKeepAliveRequests 1000
     <FilesMatch "\.(cgi|shtml|phtml|php)$">
             SSLOptions +StdEnvVars
     </FilesMatch>