From 602cb148994ffecc3fd6c9e84505144a70aa8e19 Mon Sep 17 00:00:00 2001
From: acekingke <aceking.ke@gmail.com>
Date: Wed, 24 Nov 2021 10:15:54 +0800
Subject: [PATCH] mysqlcluster: support replica is 0, but data need to be
 reserverd #304

---
 mysqlcluster/syncer/statefulset.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/mysqlcluster/syncer/statefulset.go b/mysqlcluster/syncer/statefulset.go
index 31c8d385..e41ea4ee 100644
--- a/mysqlcluster/syncer/statefulset.go
+++ b/mysqlcluster/syncer/statefulset.go
@@ -536,6 +536,10 @@ func (s *StatefulSetSyncer) ensurePodSpec() corev1.PodSpec {
 
 // updatePVC used to update the pvc, check and remove the extra pvc.
 func (s *StatefulSetSyncer) updatePVC(ctx context.Context) error {
+	if *s.Spec.Replicas == 0 {
+		log.Info("skip update pvc because replicas is 0")
+		return nil
+	}
 	pvcs := corev1.PersistentVolumeClaimList{}
 	if err := s.cli.List(ctx,
 		&pvcs,