From 1c057edeb34b0f65830a77fe8ea7f14bf4619b24 Mon Sep 17 00:00:00 2001
From: Daan Schipper <2778477+daanschipper@users.noreply.github.com>
Date: Wed, 30 Oct 2024 10:46:23 +0100
Subject: [PATCH] fix alertmanager sts showing diff in argocd

---
 operations/helm/charts/mimir-distributed/CHANGELOG.md         | 1 +
 .../templates/alertmanager/alertmanager-statefulset.yaml      | 4 +++-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/operations/helm/charts/mimir-distributed/CHANGELOG.md b/operations/helm/charts/mimir-distributed/CHANGELOG.md
index eb75bf9a4fb..163f7dad480 100644
--- a/operations/helm/charts/mimir-distributed/CHANGELOG.md
+++ b/operations/helm/charts/mimir-distributed/CHANGELOG.md
@@ -30,6 +30,7 @@ Entries should include a reference to the Pull Request that introduced the chang
 ## main / unreleased
 
 * [ENHANCEMENT] Add support for setting type and internal traffic policy for Kubernetes service. Set `internalTrafficPolicy=Cluster` by default in all services with type `ClusterIP`. #9619
+* [BUGFIX] Helm: Fix PVC template in AlertManager to not show diff in ArgoCD. #9774
 
 ## 5.5.1
 
diff --git a/operations/helm/charts/mimir-distributed/templates/alertmanager/alertmanager-statefulset.yaml b/operations/helm/charts/mimir-distributed/templates/alertmanager/alertmanager-statefulset.yaml
index 4f4469af8f5..5437fc483db 100644
--- a/operations/helm/charts/mimir-distributed/templates/alertmanager/alertmanager-statefulset.yaml
+++ b/operations/helm/charts/mimir-distributed/templates/alertmanager/alertmanager-statefulset.yaml
@@ -33,7 +33,9 @@ spec:
   serviceName: {{ template "mimir.fullname" . }}-alertmanager
   {{- if .Values.alertmanager.persistentVolume.enabled }}
   volumeClaimTemplates:
-    - metadata:
+    - apiVersion: v1
+      kind: PersistentVolumeClaim
+      metadata:
         name: storage
         {{- if .Values.alertmanager.persistentVolume.annotations }}
         annotations: