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-openolt/templates/_helpers.tpl b/voltha-adapter-openolt/templates/_helpers.tpl
new file mode 100644
index 0000000..bf89b45
--- /dev/null
+++ b/voltha-adapter-openolt/templates/_helpers.tpl
@@ -0,0 +1,23 @@
+# 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 -}}
+{{- $fullname := default (printf "%s-%s" .Release.Name $name) .Values.fullNameOverride -}}
+{{- $fullname | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
diff --git a/voltha-adapter-openolt/templates/openolt-deploy.yaml b/voltha-adapter-openolt/templates/openolt-deploy.yaml
index 9173980..ab37ca3 100644
--- a/voltha-adapter-openolt/templates/openolt-deploy.yaml
+++ b/voltha-adapter-openolt/templates/openolt-deploy.yaml
@@ -16,7 +16,7 @@
 apiVersion: apps/v1
 kind: Deployment
 metadata:
-  name: adapter-open-olt
+  name: "{{ template "fullname" . }}"
   namespace: {{ .Release.Namespace }}
   {{- if or (hasKey .Values "extra_deployment_labels") (hasKey .Values "openolt_deployment_labels") }}
   labels:
@@ -90,6 +90,10 @@
             - "--current_replica={{ .Values.replicas.current_replica }}"
             - "--total_replica={{ .Values.replicas.total_replica }}"
             - "--probe_port=8080"
+          {{- if .Values.securityContext.enabled }}
+          securityContext:
+            allowPrivilegeEscalation: false
+          {{- end }}
           livenessProbe:
             httpGet:
               path: /healthz
diff --git a/voltha-adapter-openolt/templates/openolt-profile-svc.yaml b/voltha-adapter-openolt/templates/openolt-profile-svc.yaml
index f04e9fb..dd3edfb 100644
--- a/voltha-adapter-openolt/templates/openolt-profile-svc.yaml
+++ b/voltha-adapter-openolt/templates/openolt-profile-svc.yaml
@@ -17,7 +17,7 @@
 apiVersion: v1
 kind: Service
 metadata:
-  name: adapter-open-olt-profiler
+  name: "{{ template "fullname" . }}-profiler
   namespace: {{ .Release.Namespace }}
 spec:
   clusterIP: None