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new 2f3772493c49 [SPARK-55649][K8S] Promote
`Kubernetes(Driver|Executor)?FeatureConfigStep` traits to `Stable`
2f3772493c49 is described below
commit 2f3772493c490621823e10ef2db1f4f6a81fbc4c
Author: Dongjoon Hyun <[email protected]>
AuthorDate: Mon Feb 23 20:59:14 2026 -0800
[SPARK-55649][K8S] Promote `Kubernetes(Driver|Executor)?FeatureConfigStep`
traits to `Stable`
### What changes were proposed in this pull request?
This PR aims to promote the following traits to `Stable` from Apache Spark
4.2.0:
- `KubernetesFeatureConfigStep`
- `KubernetesDriverCustomFeatureConfigStep`
- `KubernetesExecutorCustomFeatureConfigStep`
### Why are the changes needed?
Since Apache Spark 3.3.0, the `Kubernetes*FeatureConfigStep` traits have
been serving stably without any modifications for 4 years. We had better
promote them to `Stable`.
- https://github.com/apache/spark/pull/35345
### Does this PR introduce _any_ user-facing change?
No.
### How was this patch tested?
Pass the CIs.
### Was this patch authored or co-authored using generative AI tooling?
Generated-by: `Gemini 3.1 Pro (High)` on `Antigravity`
Closes #54439 from dongjoon-hyun/SPARK-55649.
Authored-by: Dongjoon Hyun <[email protected]>
Signed-off-by: Dongjoon Hyun <[email protected]>
---
docs/running-on-kubernetes.md | 4 ++--
.../k8s/features/KubernetesDriverCustomFeatureConfigStep.scala | 5 +++--
.../k8s/features/KubernetesExecutorCustomFeatureConfigStep.scala | 5 +++--
.../spark/deploy/k8s/features/KubernetesFeatureConfigStep.scala | 5 +++--
4 files changed, 11 insertions(+), 8 deletions(-)
diff --git a/docs/running-on-kubernetes.md b/docs/running-on-kubernetes.md
index 46efb479a2fe..c1d50f3ecfb3 100644
--- a/docs/running-on-kubernetes.md
+++ b/docs/running-on-kubernetes.md
@@ -1611,7 +1611,7 @@ See the [configuration page](configuration.html) for
information on Spark config
<td>(none)</td>
<td>
Class names of an extra driver pod feature step implementing
- `KubernetesFeatureConfigStep`. This is a developer API. Comma separated.
+ `KubernetesFeatureConfigStep`. This is a stable developer API. Comma
separated.
Runs after all of Spark internal feature steps. Since 3.3.0, your driver
feature step
can implement `KubernetesDriverCustomFeatureConfigStep` where the driver
config
is also available.
@@ -1632,7 +1632,7 @@ See the [configuration page](configuration.html) for
information on Spark config
<td>(none)</td>
<td>
Class names of an extra executor pod feature step implementing
- `KubernetesFeatureConfigStep`. This is a developer API. Comma separated.
+ `KubernetesFeatureConfigStep`. This is a stable developer API. Comma
separated.
Runs after all of Spark internal feature steps. Since 3.3.0, your executor
feature step
can implement `KubernetesExecutorCustomFeatureConfigStep` where the
executor config
is also available.
diff --git
a/resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/features/KubernetesDriverCustomFeatureConfigStep.scala
b/resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/features/KubernetesDriverCustomFeatureConfigStep.scala
index 0edd94d3370a..84392f897ae3 100644
---
a/resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/features/KubernetesDriverCustomFeatureConfigStep.scala
+++
b/resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/features/KubernetesDriverCustomFeatureConfigStep.scala
@@ -16,7 +16,7 @@
*/
package org.apache.spark.deploy.k8s.features
-import org.apache.spark.annotation.{DeveloperApi, Unstable}
+import org.apache.spark.annotation.{DeveloperApi, Since, Stable}
import org.apache.spark.deploy.k8s.KubernetesDriverConf
/**
@@ -65,8 +65,9 @@ import org.apache.spark.deploy.k8s.KubernetesDriverConf
* }
* }}}
*/
-@Unstable
+@Stable
@DeveloperApi
+@Since("3.3.0")
trait KubernetesDriverCustomFeatureConfigStep extends
KubernetesFeatureConfigStep {
/**
* Initialize the configuration for driver user feature step, this only
applicable when user
diff --git
a/resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/features/KubernetesExecutorCustomFeatureConfigStep.scala
b/resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/features/KubernetesExecutorCustomFeatureConfigStep.scala
index dfb1c768c990..6a1505ce7813 100644
---
a/resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/features/KubernetesExecutorCustomFeatureConfigStep.scala
+++
b/resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/features/KubernetesExecutorCustomFeatureConfigStep.scala
@@ -16,7 +16,7 @@
*/
package org.apache.spark.deploy.k8s.features
-import org.apache.spark.annotation.{DeveloperApi, Unstable}
+import org.apache.spark.annotation.{DeveloperApi, Since, Stable}
import org.apache.spark.deploy.k8s.KubernetesExecutorConf
/**
@@ -65,8 +65,9 @@ import org.apache.spark.deploy.k8s.KubernetesExecutorConf
* }
* }}}
*/
-@Unstable
+@Stable
@DeveloperApi
+@Since("3.3.0")
trait KubernetesExecutorCustomFeatureConfigStep extends
KubernetesFeatureConfigStep {
/**
* Initialize the configuration for executor user feature step, this only
applicable when user
diff --git
a/resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/features/KubernetesFeatureConfigStep.scala
b/resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/features/KubernetesFeatureConfigStep.scala
index fcb789f4ae7f..1f5776dd26dc 100644
---
a/resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/features/KubernetesFeatureConfigStep.scala
+++
b/resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/features/KubernetesFeatureConfigStep.scala
@@ -18,7 +18,7 @@ package org.apache.spark.deploy.k8s.features
import io.fabric8.kubernetes.api.model.HasMetadata
-import org.apache.spark.annotation.{DeveloperApi, Unstable}
+import org.apache.spark.annotation.{DeveloperApi, Since, Stable}
import org.apache.spark.deploy.k8s.SparkPod
/**
@@ -27,8 +27,9 @@ import org.apache.spark.deploy.k8s.SparkPod
* A collection of functions that together represent a "feature" in pods that
are launched for
* Spark drivers and executors.
*/
-@Unstable
+@Stable
@DeveloperApi
+@Since("3.3.0")
trait KubernetesFeatureConfigStep {
/**
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