From cb9063076e4e87e50b4e3a84ebfa61d09bab5619 Mon Sep 17 00:00:00 2001
From: Dongjoon Hyun <dongjoon@apache.org>
Date: Mon, 26 Aug 2024 11:31:21 -0700
Subject: [PATCH] [SPARK-49397] Add `Clean Up` section to `README.md`

---
 README.md | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/README.md b/README.md
index a4d89f2e..e9cdee72 100644
--- a/README.md
+++ b/README.md
@@ -117,6 +117,33 @@ $ helm install spark-kubernetes-operator \
 https://nightlies.apache.org/spark/charts/spark-kubernetes-operator-0.1.0-SNAPSHOT.tgz
 ```
 
+## Clean Up
+
+Check the existing Spark applications and clusters. If exists, delete them.
+
+```
+$ kubectl get sparkapp
+No resources found in default namespace.
+
+$ kubectl get sparkcluster
+No resources found in default namespace.
+```
+
+Remove HelmChart and CRDs.
+
+```
+$ helm uninstall spark-kubernetes-operator
+
+$ kubectl delete crd sparkapplications.spark.apache.org
+
+$ kubectl delete crd sparkclusters.spark.apache.org
+```
+
+In case of nightly builds, remove the snapshot image.
+```
+$ docker rmi apache/spark-kubernetes-operator:main-snapshot
+```
+
 ## Contributing
 
 Please review the [Contribution to Spark guide](https://spark.apache.org/contributing.html)