GUI extension Yeoman generator

Change-Id: If6b3fae44e4ee8a7bde36600cdc71d54d49fbf6e
diff --git a/generator-xos-gui-extension/generators/templates/conf/proxy.js b/generator-xos-gui-extension/generators/templates/conf/proxy.js
new file mode 100644
index 0000000..ab11963
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+++ b/generator-xos-gui-extension/generators/templates/conf/proxy.js
@@ -0,0 +1,36 @@
+
+/*
+ * 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.
+ */
+
+
+const httpProxy = require('http-proxy');
+
+const target = process.env.PROXY || '192.168.46.100';
+
+const apiProxy = httpProxy.createProxyServer({
+  target: `http://${target}`
+});
+
+apiProxy.on('error', (error, req, res) => {
+  res.writeHead(500, {
+    'Content-Type': 'text/plain'
+  });
+  console.error('[Proxy]', error);
+});
+
+module.exports = {
+  api: apiProxy
+};