[VOL-4285] Helm charts for grpc migration

Change-Id: Ifa3423b43b236bab6c9de437b1dd7045069fe5de
diff --git a/voltha-adapter-openolt/templates/openolt-svc.yaml b/voltha-adapter-openolt/templates/openolt-svc.yaml
new file mode 100644
index 0000000..49fe71e
--- /dev/null
+++ b/voltha-adapter-openolt/templates/openolt-svc.yaml
@@ -0,0 +1,28 @@
+# Copyright 2020-present Open Networking Foundation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: "{{ tpl .Values.adapter_open_olt.endpoints.address . }}"
+  namespace: {{ .Release.Namespace }}
+spec:
+  clusterIP: None
+  ports:
+    - name: grpc
+      port: {{ .Values.adapter_open_olt.endpoints.port }}
+      targetPort: {{ .Values.adapter_open_olt.endpoints.port }}
+  selector:
+    app: adapter-open-olt
+    release: {{ .Release.Name }}