diff --git a/charts/kubezero/templates/argoless.yaml b/charts/kubezero/templates/argoless.yaml
index 6fb2f25..b6796fa 100644
--- a/charts/kubezero/templates/argoless.yaml
+++ b/charts/kubezero/templates/argoless.yaml
@@ -1,6 +1,6 @@
 {{- if not .Values.argo }}
 
-{{- $artifacts := list "calico" "cert-manager" "kiam" "aws-node-termination-handler" "aws-ebs-csi-driver" "aws-efs-csi-driver" "local-volume-provisioner" "local-path-provisioner" "istio" "istio-ingress" "metrics" "logging" "argocd" "timecapsule" "nats" }}
+{{- $artifacts := list "calico" "cert-manager" "kiam" "aws-node-termination-handler" "aws-ebs-csi-driver" "aws-efs-csi-driver" "local-volume-provisioner" "local-path-provisioner" "istio" "istio-ingress" "metrics" "logging" "argocd" "timecapsule" }}
 
 {{- if .Values.global }}
 global:
diff --git a/charts/kubezero/templates/istio.yaml b/charts/kubezero/templates/istio.yaml
index f07e0df..021a36a 100644
--- a/charts/kubezero/templates/istio.yaml
+++ b/charts/kubezero/templates/istio.yaml
@@ -1,22 +1,18 @@
 {{- define "istio-values" }}
-
 istio-discovery:
   telemetry:
     enabled: {{ .Values.metrics.enabled }}
 {{- if .Values.HighAvailableControlplane }}
   pilot:
     replicaCount: 2
-
 global:
   defaultPodDisruptionBudget:
     enabled: true
 {{- end }}
-
 {{- end }}
 
 
 {{- define "istio-argo" }}
-
   ignoreDifferences:
   - group: apiextensions.k8s.io
     kind: CustomResourceDefinition
diff --git a/charts/kubezero/templates/metrics.yaml b/charts/kubezero/templates/metrics.yaml
index 906bad9..02c3409 100644
--- a/charts/kubezero/templates/metrics.yaml
+++ b/charts/kubezero/templates/metrics.yaml
@@ -2,7 +2,7 @@
 
 {{- with .Values.metrics.istio }}
 istio:
- {{- toYaml . | nindent 2 }}
+{{- toYaml . | nindent 2 }}
 {{- end }}
 {{- if index .Values "metrics" "kube-prometheus-stack" }}
 kube-prometheus-stack:
diff --git a/charts/kubezero/templates/nats.yaml b/charts/kubezero/templates/nats.yaml
deleted file mode 100644
index 9d1bc42..0000000
--- a/charts/kubezero/templates/nats.yaml
+++ /dev/null
@@ -1,8 +0,0 @@
-{{- define "nats-values" }}
-{{- end }}
-
-
-{{- define "nats-argo" }}
-{{- end }}
-
-{{ include "kubezero-app.app" . }}
diff --git a/charts/kubezero/values.yaml b/charts/kubezero/values.yaml
index eb266c6..826642b 100644
--- a/charts/kubezero/values.yaml
+++ b/charts/kubezero/values.yaml
@@ -69,7 +69,3 @@ argocd:
     enabled: false
 
 argo: {}
-
-nats:
-  enabled: false
-  namespace: nats