Fix HTTPRoute backendRefs service is not accept name

Author: pmint93

charts/single-deployment/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v2
 name: single-deployment
 description: A Helm chart for single deployment application
 type: application
-version: 0.4.0
+version: 0.4.1
 appVersion: "latest"
 maintainers:
   - name: pmint93

charts/single-deployment/templates/httproute.yaml

@@ -23,6 +23,6 @@ spec:
     backendRefs:
     - kind: Service
       name: {{ template "single-deployment.fullname" $ }}
-      port: http
+      port: {{ (index .Values.service.ports 0).number }}
 
 {{- end -}}