VOL-3139 - add name helper template

- includes the {{ .Release.Name }} be default
- can be overriden with
  - nameOverride: override the {{ .Release.Name }}-{{ .Chart.Name }}
    porition
  - fullNameOverride: override everything

Change-Id: I0e1dbccba8f1e484e13e6f9ae43ea35ce97aac4f
diff --git a/voltha-adapter-simulated/Chart.yaml b/voltha-adapter-simulated/Chart.yaml
index a47dd97..cc81f3c 100644
--- a/voltha-adapter-simulated/Chart.yaml
+++ b/voltha-adapter-simulated/Chart.yaml
@@ -14,7 +14,7 @@
 ---
 apiVersion: "v1"
 name: "voltha-adapter-simulated"
-version: 2.2.5
+version: 2.2.6
 description: "A Helm chart for Voltha Simulated Adapter"
 keywords:
   - "onf"
diff --git a/voltha-adapter-simulated/templates/_helpers.tpl b/voltha-adapter-simulated/templates/_helpers.tpl
new file mode 100644
index 0000000..b0d4716
--- /dev/null
+++ b/voltha-adapter-simulated/templates/_helpers.tpl
@@ -0,0 +1,22 @@
+# 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.
+{{/* Expand the name of the chart. */}}
+{{- define "name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+{{/* Create a default fully qualified app name. We truncate at 63 chars because . . . */}}
+{{- define "fullname" -}}
+{{- $name := default .Chart.Name .Values.nameOverride -}}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
diff --git a/voltha-adapter-simulated/templates/olt-adapter-deploy.yaml b/voltha-adapter-simulated/templates/olt-adapter-deploy.yaml
index 2129123..5cf7b01 100644
--- a/voltha-adapter-simulated/templates/olt-adapter-deploy.yaml
+++ b/voltha-adapter-simulated/templates/olt-adapter-deploy.yaml
@@ -15,7 +15,7 @@
 apiVersion: apps/v1
 kind: Deployment
 metadata:
-  name: adapter-simulated-olt
+  name: "{{ template "fullname" . }}-olt"
   namespace: {{ .Release.Namespace }}
   {{- if or (hasKey .Values "extra_deployment_labels") (hasKey .Values "simolt_deployment_labels") }}
   labels:
diff --git a/voltha-adapter-simulated/templates/onu-adapter-deploy.yaml b/voltha-adapter-simulated/templates/onu-adapter-deploy.yaml
index 7a271c6..3fc8cb4 100644
--- a/voltha-adapter-simulated/templates/onu-adapter-deploy.yaml
+++ b/voltha-adapter-simulated/templates/onu-adapter-deploy.yaml
@@ -15,7 +15,7 @@
 apiVersion: apps/v1
 kind: Deployment
 metadata:
-  name: adapter-simulated-onu
+  name: "{{ template "fullname" . }}-onu"
   namespace: {{ .Release.Namespace }}
   {{- if or (hasKey .Values "extra_deployment_labels") (hasKey .Values "simonu_deployment_labels") }}
   labels:
diff --git a/voltha-adapter-simulated/values.yaml b/voltha-adapter-simulated/values.yaml
index d5a913f..21a90fc 100644
--- a/voltha-adapter-simulated/values.yaml
+++ b/voltha-adapter-simulated/values.yaml
@@ -12,6 +12,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 ---
+nameOverride: ~
+fullNameOverride: ~
 
 # Default overrides
 defaults: