AETHER-487 Add UPF CNI with the latest multus support

Change-Id: I6c8160817d8c429e9db2db27ad6fae07ba4e0dd7
diff --git a/omec/omec-upf-cni/templates/_helpers.tpl b/omec/omec-upf-cni/templates/_helpers.tpl
new file mode 100644
index 0000000..dcf8fc6
--- /dev/null
+++ b/omec/omec-upf-cni/templates/_helpers.tpl
@@ -0,0 +1,18 @@
+{{- /*
+
+# Copyright 2019-present Open Networking Foundation
+#
+# SPDX-License-Identifier: LicenseRef-ONF-Member-Only-1.0
+
+*/ -}}
+
+{{/*
+Renders a set of standardised labels.
+*/}}
+{{- define "omec-upf-cni.metadata_labels" -}}
+{{- $application := index . 0 -}}
+{{- $context := index . 1 -}}
+tier: node
+release: {{ $context.Release.Name }}
+app: {{ $application }}
+{{- end -}}