[PLAT-15101] Add runtime config to turn on/off rollN for k8s

Summary: Added separate config entry for roll N nodes in k8s

Test Plan:
1) Create k8s universe - see rollMaxBatchSize is null in universeResp
2) Enable k8s conf - see rollMaxBatchSize is present

Reviewers: cwang

Reviewed By: cwang

Subscribers: yugaware

Differential Revision: https://phorge.dev.yugabyte.com/D37900

managed/src/main/java/com/yugabyte/yw/common/config/UniverseConfKeys.java

@@ -1202,7 +1202,15 @@ public class UniverseConfKeys extends RuntimeConfigKeysModule {
           "yb.task.upgrade.batch_roll_enabled",
           ScopeType.UNIVERSE,
           "Stop multiple nodes in az simultaneously during upgrade",
-          "Stop multiple nodes simultaneously in az during upgrade",
+          "Stop multiple nodes in az simultaneously during upgrade",
+          ConfDataType.BooleanType,
+          ImmutableList.of(ConfKeyTags.INTERNAL));
+  public static final ConfKeyInfo<Boolean> upgradeBatchRollK8sEnabled =
+      new ConfKeyInfo<>(
+          "yb.task.upgrade.batch_roll_enabled_k8s",
+          ScopeType.UNIVERSE,
+          "Stop multiple nodes in az simultaneously during upgrade (in k8s)",
+          "Stop multiple nodes in az simultaneously during upgrade (in k8s)",
           ConfDataType.BooleanType,
           ImmutableList.of(ConfKeyTags.INTERNAL));
   public static final ConfKeyInfo<Integer> upgradeBatchRollAutoPercent =

managed/src/main/java/com/yugabyte/yw/forms/UniverseResp.java

@@ -63,7 +63,14 @@ public static UniverseResp create(
     Map<UUID, AllowedTasks> allowedTasks =
         getAllowedTasksOnFailure(Collections.singletonList(universe));
     RollMaxBatchSize rollMaxBatchSize = null;
-    if (confGetter.getConfForScope(universe, UniverseConfKeys.upgradeBatchRollEnabled)) {
+    boolean isK8s =
+        universe.getUniverseDetails().getPrimaryCluster().userIntent.providerType
+            == Common.CloudType.kubernetes;
+    boolean batchRollEnabled =
+        isK8s
+            ? confGetter.getConfForScope(universe, UniverseConfKeys.upgradeBatchRollK8sEnabled)
+            : confGetter.getConfForScope(universe, UniverseConfKeys.upgradeBatchRollEnabled);
+    if (batchRollEnabled) {
       rollMaxBatchSize = UpgradeTaskBase.getMaxNodesToRoll(universe);
     }
     return new UniverseResp(

managed/src/main/resources/reference.conf

@@ -440,6 +440,7 @@ yb {
 
     upgrade {
         batch_roll_enabled = false
+        batch_roll_enabled_k8s = false
         batch_roll_auto_percent = 0
         batch_roll_auto_number = 0
     }