diff --git a/charts/databunker-demo/templates/service.yaml b/charts/databunker-demo/templates/service.yaml
index 9a90467..51be288 100644
--- a/charts/databunker-demo/templates/service.yaml
+++ b/charts/databunker-demo/templates/service.yaml
@@ -11,8 +11,8 @@ spec:
       targetPort: http
       protocol: TCP
       name: http
-{{- if contains "NodePort" .Values.service.type }}
-      nodePort: 30300
-{{- end }}
+      {{- if and (or (eq .Values.service.type "NodePort") (eq .Values.service.type "LoadBalancer")) (not (empty .Values.service.nodePort)) }}
+      nodePort: {{ .Values.service.nodePort }}
+      {{- end }}
   selector:
     {{- include "databunker-demo.selectorLabels" . | nindent 4 }}
diff --git a/charts/databunker-demo/values.yaml b/charts/databunker-demo/values.yaml
index 500aaaa..e794d1a 100644
--- a/charts/databunker-demo/values.yaml
+++ b/charts/databunker-demo/values.yaml
@@ -39,6 +39,7 @@ securityContext: {}
 service:
   type: ClusterIP
   port: 3000
+  nodePort: 30300
 
 ingress:
   enabled: false