From 841eb8584a6edda0920400d424d6ae544592dff1 Mon Sep 17 00:00:00 2001
From: Michael <michael@akvo.org>
Date: Thu, 17 Nov 2022 11:03:39 +0100
Subject: [PATCH] [#740] configure automatic scaling

https://cloud.google.com/appengine/docs/legacy/standard/java/config/appref#scaling_elements_automatic_scaling

The default max instance is really high and incurring high costs.
The default max-concurrent-requests is too low and forcing more instances to spawn.
---
 .../src/org/akvo/flow/templates/appengine-web.xml.ftl       | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Config/instanceConfigurator/src/org/akvo/flow/templates/appengine-web.xml.ftl b/Config/instanceConfigurator/src/org/akvo/flow/templates/appengine-web.xml.ftl
index 0940d5a746..567a80458c 100644
--- a/Config/instanceConfigurator/src/org/akvo/flow/templates/appengine-web.xml.ftl
+++ b/Config/instanceConfigurator/src/org/akvo/flow/templates/appengine-web.xml.ftl
@@ -6,6 +6,12 @@
     <sessions-enabled>true</sessions-enabled>
     <threadsafe>true</threadsafe>
     <auto-id-policy>legacy</auto-id-policy>
+        <automatic-scaling>
+        <!-- Default is 20 -->
+        <max-instances>5</max-instances>
+        <!-- Default is 10 -->
+        <max-concurrent-requests>50</max-concurrent-requests>
+    </automatic-scaling>
     <static-files>
         <include path="/**.png" expiration="1000d 5h" />
         <include path="/**.jpg" expiration="1000d 5h" />