Metric function helm chart changes

Change-Id: I0122c765e4bc664ae4c68f796ed6cf4d6db84b4a
diff --git a/5g-control-plane/templates/service-metrics.yaml b/5g-control-plane/templates/service-metrics.yaml
new file mode 100644
index 0000000..7d8ec89
--- /dev/null
+++ b/5g-control-plane/templates/service-metrics.yaml
@@ -0,0 +1,28 @@
+{{/*
+# Copyright 2022-present Open Networking Foundation
+
+# SPDX-License-Identifier: Apache-2.0
+*/}}
+
+{{- if .Values.config.metrics.deploy }}
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: metrics
+  labels:
+{{ tuple "metrics" . | include "5g-control-plane.metadata_labels" | indent 4 }}
+spec:
+  type: {{ .Values.config.metrics.serviceType }}
+  selector:
+{{ tuple "metrics" . | include "5g-control-plane.metadata_labels" | indent 4 }}
+  ports:
+  - name: prometheus-exporter
+    port: {{ .Values.config.metrics.prometheus.port }}
+    protocol: TCP
+{{- if eq .Values.config.metrics.serviceType "NodePort" }}
+{{- if .Values.config.metrics.prometheus.nodePort }}
+    nodePort: {{ .Values.config.metrics.prometheus.nodePort }}
+{{- end }}
+{{- end }}
+{{- end }}