From 3c92a06268667bac890c255b4963156402d7b341 Mon Sep 17 00:00:00 2001
From: freeze <1615081+Vicente-Cheng@users.noreply.github.com>
Date: Wed, 23 Sep 2026 12:14:48 +0800
Subject: [PATCH] feat: drop striped LVM volume group type from v1.9.1 (#1167)

The LVM add-on reaches GA in v1.9.1 and only supports dm-thin.
    Gate the striped option behind a v1.9.1 feature flag, default new
    LVM storage classes to dm-thin, and reset a cloned striped type so
    older clusters keep the current behaviour.

    Related issue: harvester/harvester#11731

Signed-off-by: Vicente Cheng <vicente.cheng@suse.com>
---
 pkg/harvester/config/feature-flags.js             |  4 +++-
 .../provisioners/lvm.driver.harvesterhci.io.vue   | 15 ++++++++++++++-
 2 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/pkg/harvester/config/feature-flags.js b/pkg/harvester/config/feature-flags.js
index 898365e2..5f0f182a 100644
--- a/pkg/harvester/config/feature-flags.js
+++ b/pkg/harvester/config/feature-flags.js
@@ -77,7 +77,9 @@ const FEATURE_FLAGS = {
     'staticIPForVM',
     'fsFreezeDeadline',
   ],
-  'v1.9.1':  [],
+  'v1.9.1': [
+    'lvmDmThinOnly',
+  ],
   'v1.10.0': [],
 };
 
diff --git a/pkg/harvester/edit/harvesterhci.io.storage/provisioners/lvm.driver.harvesterhci.io.vue b/pkg/harvester/edit/harvesterhci.io.storage/provisioners/lvm.driver.harvesterhci.io.vue
index 7b7b925c..7c8a0403 100644
--- a/pkg/harvester/edit/harvesterhci.io.storage/provisioners/lvm.driver.harvesterhci.io.vue
+++ b/pkg/harvester/edit/harvesterhci.io.storage/provisioners/lvm.driver.harvesterhci.io.vue
@@ -7,8 +7,12 @@ import { allHash } from '@shell/utils/promise';
 import { clone } from '@shell/utils/object';
 import { HCI } from '../../../types';
 import { NODE } from '@shell/config/types';
+import { _CREATE, _CLONE } from '@shell/config/query-params';
 import { LVM_TOPOLOGY_LABEL } from '../index.vue';
 
+const STRIPED_TYPE = 'striped';
+const DM_THIN_TYPE = 'dm-thin';
+
 const DEFAULT_PARAMETERS = [
   'type',
   'vgName'
@@ -54,8 +58,17 @@ export default {
   data() {
     const node = (this.value.allowedTopologies?.[0]?.matchLabelExpressions || []).find((t) => t.key === LVM_TOPOLOGY_LABEL)?.values[0];
 
+    // striped is dropped once the LVM add-on reaches GA (v1.9.1); dm-thin is the only supported type.
+    const dmThinOnly = this.$store.getters['harvester-common/getFeatureEnabled']('lvmDmThinOnly');
+    const volumeGroupTypes = dmThinOnly ? [DM_THIN_TYPE] : [STRIPED_TYPE, DM_THIN_TYPE];
+
+    // Default new storage classes to dm-thin, and reset a cloned striped type that is no longer selectable.
+    if (dmThinOnly && [_CREATE, _CLONE].includes(this.realMode) && !volumeGroupTypes.includes(this.value.parameters.type)) {
+      this.value.parameters.type = DM_THIN_TYPE;
+    }
+
     return {
-      volumeGroupTypes: ['striped', 'dm-thin'],
+      volumeGroupTypes,
       node,
     };
   },