mbalassi commented on code in PR #20779:
URL: https://github.com/apache/flink/pull/20779#discussion_r1413932510


##########
flink-kubernetes/src/main/java/org/apache/flink/kubernetes/configuration/KubernetesConfigOptions.java:
##########
@@ -485,6 +486,19 @@ public class KubernetesConfigOptions {
                     .withDescription(
                             "The user agent to be used for contacting with 
Kubernetes APIServer.");
 
+    public static final ConfigOption<Boolean> 
KUBERNETES_USER_ARTIFACTS_EMPTYDIR_ENABLE =
+            ConfigOptions.key("kubernetes.user.artifacts.emptyDir.enable")
+                    .booleanType()
+                    .defaultValue(true)

Review Comment:
   What is a good use case for disabling this by the way? I would keep it 
default in all cases that come to mind.



##########
flink-kubernetes/src/test/java/org/apache/flink/kubernetes/kubeclient/factory/KubernetesJobManagerFactoryTest.java:
##########
@@ -468,4 +470,47 @@ void testSetJobManagerDeploymentReplicas() throws 
Exception {
         
assertThat(kubernetesJobManagerSpecification.getDeployment().getSpec().getReplicas())
                 .isEqualTo(JOBMANAGER_REPLICAS);
     }
+
+    @Test
+    public void testArtifactsEmptyDirVolume() throws IOException {
+        flinkConfig.set(ArtifactFetchOptions.USER_ARTIFACTS_BASE_DIR, 
"/opt/artifacts");

Review Comment:
   `/opt/artifacts` is reused in the next test, please refactor it to a const.



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