From ee9b64b92d268acf45ad905789d4643255c49b23 Mon Sep 17 00:00:00 2001
From: Ashleigh Brennan <abrennan@redhat.com>
Date: Wed, 1 Sep 2021 08:34:19 -0500
Subject: [PATCH] SRVKS-805: Add emptyDir config

---
 modules/serverless-config-emptydir.adoc          | 16 ++++++++++++++++
 .../admin_guide/knative-serving-CR-config.adoc   |  1 +
 2 files changed, 17 insertions(+)
 create mode 100644 modules/serverless-config-emptydir.adoc

diff --git a/modules/serverless-config-emptydir.adoc b/modules/serverless-config-emptydir.adoc
new file mode 100644
index 000000000000..ad297506f297
--- /dev/null
+++ b/modules/serverless-config-emptydir.adoc
@@ -0,0 +1,16 @@
+[id="serverless-config-emptydir_{context}"]
+= Configuring the EmptyDir extension
+
+This extension controls whether `emptyDir` volumes can be specified.
+
+To enable using `emptyDir` volumes, you must modify the `KnativeServing` custom resource (CR) to include the following YAML:
+
+[source,yaml]
+----
+...
+spec:
+  config:
+    features:
+      "kubernetes.podspec-volumes-emptydir": enabled
+...
+----
diff --git a/serverless/admin_guide/knative-serving-CR-config.adoc b/serverless/admin_guide/knative-serving-CR-config.adoc
index ad2abb7b8fd6..c8a75909cfb7 100644
--- a/serverless/admin_guide/knative-serving-CR-config.adoc
+++ b/serverless/admin_guide/knative-serving-CR-config.adoc
@@ -10,6 +10,7 @@ This guide describes how cluster administrators can manage settings for develope
 
 // config options
 include::modules/knative-serving-CR-system-deployments.adoc[leveloffset=+1]
+include::modules/serverless-config-emptydir.adoc[leveloffset=+1]
 
 [id="additional-resources_knative-serving-CR-config"]
 == Additional resources