[CORD-3003] Make XOS GUI optional (enabled by default)

Change-Id: I2b70ac628d7b5bf105de68895bb6cb0a22f93492
diff --git a/xos-gui/templates/_helpers.tpl b/xos-gui/templates/_helpers.tpl
new file mode 100644
index 0000000..37909bc
--- /dev/null
+++ b/xos-gui/templates/_helpers.tpl
@@ -0,0 +1,57 @@
+{{- /*
+Copyright 2017-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.
+*/ -}}
+
+{{- define "xos-gui.release_labels" }}
+app: {{ printf "%s-%s" .Release.Name .Chart.Name | trunc 63 }}
+chart: {{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}
+release: {{ .Release.Name }}
+heritage: {{ .Release.Service }}
+version: {{ .Chart.Version }}
+{{- end }}
+
+{{- define "xos-gui.app_config" }}
+angular.module('app')
+.constant('AppConfig', {
+  apiEndpoint: '/xosapi/v1',
+  websocketClient: '/'
+});
+{{- end }}
+
+{{- define "xos-gui.style_config" }}
+angular.module('app')
+.constant('StyleConfig', {
+  projectName: 'R-CORD',
+  favicon: 'cord-favicon.png',
+  background: 'cord-bg.jpg',
+  payoff: 'Your VNF orchestrator',
+  logo: 'cord-logo.png',
+  routes: [
+      {
+          label: 'Slices',
+          state: 'xos.core.slice',
+      },
+      {
+          label: 'Nodes',
+          state: 'xos.core.node',
+      },
+      {
+          label: 'Instances',
+          state: 'xos.core.instance',
+      },
+  ]
+});
+{{- end }}
+