diff --git a/docs/kata-containers.md b/docs/kata-containers.md
index 9e7d6c469745f4783346ef62ce959e4db323142b..30843fd7f74a211d4e780d2137d5dea0bd84f1cb 100644
--- a/docs/kata-containers.md
+++ b/docs/kata-containers.md
@@ -8,7 +8,7 @@ _Qemu_ is the only hypervisor supported by Kubespray.
 
 ## Installation
 
-To use Kata Containers, set the following variables:
+To enable Kata Containers, set the following variables:
 
 **k8s-cluster.yml**:
 
@@ -23,6 +23,31 @@ kata_containers_enabled: true
 etcd_deployment_type: host
 ```
 
+## Usage
+
+By default, runc is used for pods.
+Kubespray generates the runtimeClass kata-qemu, and it is necessary to specify it as
+the runtimeClassName of a pod spec to use Kata Containers:
+
+```shell
+$ kubectl get runtimeclass
+NAME        HANDLER     AGE
+kata-qemu   kata-qemu   3m34s
+$
+$ cat nginx.yaml
+apiVersion: v1
+kind: Pod
+metadata:
+  name: mypod
+spec:
+  runtimeClassName: kata-qemu
+  containers:
+  - name: nginx
+    image: nginx:1.14.2
+$
+$ kubectl apply -f nginx.yaml
+```
+
 ## Configuration
 
 ### Recommended : Pod Overhead