stackabletech · razvan · May 27, 2025 · May 26, 2025 · May 26, 2025 · May 26, 2025
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -26,10 +26,13 @@ All notable changes to this project will be documented in this file.
 - Document that Spark Connect doesn't integrate with the history server ([#559])
 - test: Bump to Vector `0.46.1` ([#565]).
 - Use versioned common structs ([#572]).
+- BREAKING: Change the label `app.kubernetes.io/name` for Spark history and connect objects to use `spark-history` and `spark-connect` instead of `spark-k8s` ([#573]).
+- BREAKING: The history Pods now have their own ClusterRole named `spark-history-clusterrole` ([#573]).
 
 ### Fixed
 
 - Use `json` file extension for log files ([#553]).
+- The Spark connect controller now watches StatefulSets instead of Deployments (again) ([#573]).
 
 ### Removed
 
@@ -46,6 +49,7 @@ All notable changes to this project will be documented in this file.
 [#565]: https://github.com/stackabletech/spark-k8s-operator/pull/565
 [#570]: https://github.com/stackabletech/spark-k8s-operator/pull/570
 [#572]: https://github.com/stackabletech/spark-k8s-operator/pull/572
+[#573]: https://github.com/stackabletech/spark-k8s-operator/pull/573
 
 ## [25.3.0] - 2025-03-21
 

diff --git a/deploy/helm/spark-k8s-operator/templates/roles.yaml b/deploy/helm/spark-k8s-operator/templates/roles.yaml
@@ -18,7 +18,14 @@ rules:
     resources:
       - persistentvolumeclaims
     verbs:
+      - create
+      - delete
+      - deletecollection
+      - get
       - list
+      - patch
+      - update
+      - watch
   - apiGroups:
       - ""
     resources:

diff --git a/deploy/helm/spark-k8s-operator/templates/spark-connect-clusterrole.yaml b/deploy/helm/spark-k8s-operator/templates/spark-connect-clusterrole.yaml
@@ -0,0 +1,42 @@
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: spark-connect-clusterrole
+  labels:
+  {{- include "operator.labels" . | nindent 4 }}
+rules:
+  - apiGroups:
+      - ""
+    resources:
+      - configmaps
+      - persistentvolumeclaims
+      - pods
+      - secrets
+      - serviceaccounts
+      - services
+    verbs:
+      - create
+      - delete
+      - deletecollection
+      - get
+      - list
+      - patch
+      - update
+      - watch
+  - apiGroups:
+      - events.k8s.io
+    resources:
+      - events
+    verbs:
+      - create
+{{ if .Capabilities.APIVersions.Has "security.openshift.io/v1" }}
+  - apiGroups:
+      - security.openshift.io
+    resources:
+      - securitycontextconstraints
+    resourceNames:
+      - nonroot-v2
+    verbs:
+      - use
+{{ end }}
diff --git a/deploy/helm/spark-k8s-operator/templates/spark-history-clusterrole.yaml b/deploy/helm/spark-k8s-operator/templates/spark-history-clusterrole.yaml
@@ -0,0 +1,42 @@
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: spark-history-clusterrole
+  labels:
+  {{- include "operator.labels" . | nindent 4 }}
+rules:
+  - apiGroups:
+      - ""
+    resources:
+      - configmaps
+      - persistentvolumeclaims
+      - pods
+      - secrets
+      - serviceaccounts
+      - services
+    verbs:
+      - create
+      - delete
+      - deletecollection
+      - get
+      - list
+      - patch
+      - update
+      - watch
+  - apiGroups:
+      - events.k8s.io
+    resources:
+      - events
+    verbs:
+      - create
+{{ if .Capabilities.APIVersions.Has "security.openshift.io/v1" }}
+  - apiGroups:
+      - security.openshift.io
+    resources:
+      - securitycontextconstraints
+    resourceNames:
+      - nonroot-v2
+    verbs:
+      - use
+{{ end }}
diff --git a/rust/operator-binary/src/connect/common.rs b/rust/operator-binary/src/connect/common.rs
@@ -11,9 +11,10 @@ use strum::Display;
 use super::crd::CONNECT_EXECUTOR_ROLE_NAME;
 use crate::{
     connect::crd::{
-        CONNECT_CONTROLLER_NAME, CONNECT_SERVER_ROLE_NAME, DUMMY_SPARK_CONNECT_GROUP_NAME,
+        CONNECT_APP_NAME, CONNECT_CONTROLLER_NAME, CONNECT_SERVER_ROLE_NAME,
+        DUMMY_SPARK_CONNECT_GROUP_NAME,
     },
-    crd::constants::{APP_NAME, OPERATOR_NAME},
+    crd::constants::OPERATOR_NAME,
 };
 
 #[derive(Snafu, Debug)]
@@ -42,7 +43,7 @@ pub(crate) fn labels<'a, T>(
 ) -> ObjectLabels<'a, T> {
     ObjectLabels {
         owner: scs,
-        app_name: APP_NAME,
+        app_name: CONNECT_APP_NAME,
         app_version: app_version_label,
         operator_name: OPERATOR_NAME,
         controller_name: CONNECT_CONTROLLER_NAME,

diff --git a/rust/operator-binary/src/connect/controller.rs b/rust/operator-binary/src/connect/controller.rs
@@ -18,11 +18,11 @@ use stackable_operator::{
 };
 use strum::{EnumDiscriminants, IntoStaticStr};
 
-use super::crd::{CONNECT_CONTROLLER_NAME, v1alpha1};
+use super::crd::{CONNECT_APP_NAME, CONNECT_CONTROLLER_NAME, v1alpha1};
 use crate::{
     Ctx,
     connect::{common, crd::SparkConnectServerStatus, executor, server},
-    crd::constants::{APP_NAME, OPERATOR_NAME, SPARK_IMAGE_BASE_NAME},
+    crd::constants::{OPERATOR_NAME, SPARK_IMAGE_BASE_NAME},
 };
 
 #[derive(Snafu, Debug, EnumDiscriminants)]
@@ -168,7 +168,7 @@ pub async fn reconcile(
     let client = &ctx.client;
 
     let mut cluster_resources = ClusterResources::new(
-        APP_NAME,
+        CONNECT_APP_NAME,
         OPERATOR_NAME,
         CONNECT_CONTROLLER_NAME,
         &scs.object_ref(&()),
@@ -184,7 +184,7 @@ pub async fn reconcile(
     // Use a dedicated service account for connect server pods.
     let (service_account, role_binding) = build_rbac_resources(
         scs,
-        APP_NAME,
+        CONNECT_APP_NAME,
         cluster_resources
             .get_required_labels()
             .context(GetRequiredLabelsSnafu)?,

diff --git a/rust/operator-binary/src/connect/crd.rs b/rust/operator-binary/src/connect/crd.rs
@@ -33,7 +33,6 @@ use stackable_operator::{
 use strum::{Display, EnumIter};
 
 use super::common::SparkConnectRole;
-use crate::crd::constants::APP_NAME;
 
 pub const CONNECT_CONTROLLER_NAME: &str = "connect";
 pub const CONNECT_FULL_CONTROLLER_NAME: &str = concatcp!(
@@ -48,6 +47,8 @@ pub const CONNECT_UI_PORT: i32 = 4040;
 
 pub const DUMMY_SPARK_CONNECT_GROUP_NAME: &str = "default";
 
+pub const CONNECT_APP_NAME: &str = "spark-connect";
+
 #[derive(Snafu, Debug)]
 pub enum Error {
     #[snafu(display("fragment validation failure"))]
@@ -346,7 +347,7 @@ impl v1alpha1::ExecutorConfig {
 
     fn affinity(cluster_name: &str) -> StackableAffinityFragment {
         let affinity_between_role_pods = affinity_between_role_pods(
-            APP_NAME,
+            CONNECT_APP_NAME,
             cluster_name,
             &SparkConnectRole::Executor.to_string(),
             70,

diff --git a/rust/operator-binary/src/connect/server.rs b/rust/operator-binary/src/connect/server.rs
@@ -35,6 +35,7 @@ use stackable_operator::{
     role_utils::RoleGroupRef,
 };
 
+use super::crd::CONNECT_APP_NAME;
 use crate::{
     connect::{
         common::{self, SparkConnectRole, object_name},
@@ -45,7 +46,7 @@ use crate::{
     },
     crd::{
         constants::{
-            APP_NAME, JVM_SECURITY_PROPERTIES_FILE, LISTENER_VOLUME_DIR, LISTENER_VOLUME_NAME,
+            JVM_SECURITY_PROPERTIES_FILE, LISTENER_VOLUME_DIR, LISTENER_VOLUME_NAME,
             LOG4J2_CONFIG_FILE, MAX_SPARK_LOG_FILES_SIZE, METRICS_PROPERTIES_FILE,
             POD_TEMPLATE_FILE, SPARK_DEFAULTS_FILE_NAME, SPARK_UID, VOLUME_MOUNT_NAME_CONFIG,
             VOLUME_MOUNT_NAME_LOG, VOLUME_MOUNT_NAME_LOG_CONFIG, VOLUME_MOUNT_PATH_CONFIG,
@@ -370,7 +371,7 @@ pub(crate) fn build_stateful_set(
                 match_labels: Some(
                     Labels::role_group_selector(
                         scs,
-                        APP_NAME,
+                        CONNECT_APP_NAME,
                         &SparkConnectRole::Server.to_string(),
                         DUMMY_SPARK_CONNECT_GROUP_NAME,
                     )
@@ -393,9 +394,10 @@ pub(crate) fn build_internal_service(
 ) -> Result<Service, Error> {
     let service_name = object_name(&scs.name_any(), SparkConnectRole::Server);
 
-    let selector = Labels::role_selector(scs, APP_NAME, &SparkConnectRole::Server.to_string())
-        .context(LabelBuildSnafu)?
-        .into();
+    let selector =
+        Labels::role_selector(scs, CONNECT_APP_NAME, &SparkConnectRole::Server.to_string())
+            .context(LabelBuildSnafu)?
+            .into();
 
     Ok(Service {
         metadata: ObjectMetaBuilder::new()

diff --git a/rust/operator-binary/src/crd/constants.rs b/rust/operator-binary/src/crd/constants.rs
@@ -77,7 +77,7 @@ pub const POD_DRIVER_FULL_CONTROLLER_NAME: &str =
 pub const HISTORY_CONTROLLER_NAME: &str = "history";
 pub const HISTORY_FULL_CONTROLLER_NAME: &str =
     concatcp!(HISTORY_CONTROLLER_NAME, '.', OPERATOR_NAME);
-
+pub const HISTORY_APP_NAME: &str = "spark-history";
 pub const HISTORY_ROLE_NAME: &str = "node";
 
 pub const SPARK_IMAGE_BASE_NAME: &str = "spark-k8s";

diff --git a/rust/operator-binary/src/history/history_controller.rs b/rust/operator-binary/src/history/history_controller.rs
@@ -54,13 +54,13 @@ use crate::{
     Ctx,
     crd::{
         constants::{
-            ACCESS_KEY_ID, APP_NAME, HISTORY_CONTROLLER_NAME, HISTORY_ROLE_NAME, HISTORY_UI_PORT,
-            JVM_SECURITY_PROPERTIES_FILE, LISTENER_VOLUME_DIR, LISTENER_VOLUME_NAME,
-            MAX_SPARK_LOG_FILES_SIZE, METRICS_PORT, OPERATOR_NAME, SECRET_ACCESS_KEY,
-            SPARK_DEFAULTS_FILE_NAME, SPARK_ENV_SH_FILE_NAME, SPARK_IMAGE_BASE_NAME, SPARK_UID,
-            STACKABLE_TRUST_STORE, VOLUME_MOUNT_NAME_CONFIG, VOLUME_MOUNT_NAME_LOG,
-            VOLUME_MOUNT_NAME_LOG_CONFIG, VOLUME_MOUNT_PATH_CONFIG, VOLUME_MOUNT_PATH_LOG,
-            VOLUME_MOUNT_PATH_LOG_CONFIG,
+            ACCESS_KEY_ID, HISTORY_APP_NAME, HISTORY_CONTROLLER_NAME, HISTORY_ROLE_NAME,
+            HISTORY_UI_PORT, JVM_SECURITY_PROPERTIES_FILE, LISTENER_VOLUME_DIR,
+            LISTENER_VOLUME_NAME, MAX_SPARK_LOG_FILES_SIZE, METRICS_PORT, OPERATOR_NAME,
+            SECRET_ACCESS_KEY, SPARK_DEFAULTS_FILE_NAME, SPARK_ENV_SH_FILE_NAME,
+            SPARK_IMAGE_BASE_NAME, SPARK_UID, STACKABLE_TRUST_STORE, VOLUME_MOUNT_NAME_CONFIG,
+            VOLUME_MOUNT_NAME_LOG, VOLUME_MOUNT_NAME_LOG_CONFIG, VOLUME_MOUNT_PATH_CONFIG,
+            VOLUME_MOUNT_PATH_LOG, VOLUME_MOUNT_PATH_LOG_CONFIG,
         },
         history::{self, HistoryConfig, SparkHistoryServerContainer, v1alpha1},
         listener_ext,
@@ -248,7 +248,7 @@ pub async fn reconcile(
     let client = &ctx.client;
 
     let mut cluster_resources = ClusterResources::new(
-        APP_NAME,
+        HISTORY_APP_NAME,
         OPERATOR_NAME,
         HISTORY_CONTROLLER_NAME,
         &shs.object_ref(&()),
@@ -271,7 +271,7 @@ pub async fn reconcile(
     // Use a dedicated service account for history server pods.
     let (service_account, role_binding) = build_rbac_resources(
         shs,
-        APP_NAME,
+        HISTORY_APP_NAME,
         cluster_resources
             .get_required_labels()
             .context(GetRequiredLabelsSnafu)?,
@@ -659,7 +659,7 @@ fn build_stateful_set(
                 match_labels: Some(
                     Labels::role_group_selector(
                         shs,
-                        APP_NAME,
+                        HISTORY_APP_NAME,
                         &rolegroupref.role,
                         &rolegroupref.role_group,
                     )
@@ -726,7 +726,7 @@ fn labels<'a, T>(
 ) -> ObjectLabels<'a, T> {
     ObjectLabels {
         owner: shs,
-        app_name: APP_NAME,
+        app_name: HISTORY_APP_NAME,
         app_version: app_version_label,
         operator_name: OPERATOR_NAME,
         controller_name: HISTORY_CONTROLLER_NAME,

diff --git a/rust/operator-binary/src/history/operations/pdb.rs b/rust/operator-binary/src/history/operations/pdb.rs
@@ -5,7 +5,7 @@ use stackable_operator::{
 };
 
 use crate::crd::{
-    constants::{APP_NAME, HISTORY_CONTROLLER_NAME, HISTORY_ROLE_NAME, OPERATOR_NAME},
+    constants::{HISTORY_APP_NAME, HISTORY_CONTROLLER_NAME, HISTORY_ROLE_NAME, OPERATOR_NAME},
     history::v1alpha1,
 };
 
@@ -37,7 +37,7 @@ pub async fn add_pdbs(
         .unwrap_or(max_unavailable_history_servers());
     let pdb = PodDisruptionBudgetBuilder::new_with_role(
         history,
-        APP_NAME,
+        HISTORY_APP_NAME,
         HISTORY_ROLE_NAME,
         OPERATOR_NAME,
         HISTORY_CONTROLLER_NAME,

diff --git a/rust/operator-binary/src/main.rs b/rust/operator-binary/src/main.rs
@@ -9,7 +9,7 @@ use stackable_operator::{
     YamlSchema,
     cli::{Command, ProductOperatorRun},
     k8s_openapi::api::{
-        apps::v1::{Deployment, StatefulSet},
+        apps::v1::StatefulSet,
         core::v1::{ConfigMap, Pod, Service},
     },
     kube::{
@@ -273,7 +273,7 @@ async fn main() -> anyhow::Result<()> {
                 watcher::Config::default(),
             )
             .owns(
-                watch_namespace.get_api::<DeserializeGuard<Deployment>>(&client),
+                watch_namespace.get_api::<DeserializeGuard<StatefulSet>>(&client),
                 watcher::Config::default(),
             )
             .owns(