[ZEPPELIN-2152] Added documentation

docs/_includes/themes/zeppelin/_navigation.html

@@ -116,6 +116,7 @@
                 <li><a href="{{BASE_PATH}}/security/shiroauthentication.html">Shiro Authentication</a></li>
                 <li><a href="{{BASE_PATH}}/security/notebook_authorization.html">Notebook Authorization</a></li>
                 <li><a href="{{BASE_PATH}}/security/datasource_authorization.html">Data Source Authorization</a></li>
+                <li><a href="{{BASE_PATH}}/security/helium_authorization.html">Helium Authorization</a></li>
                 <li role="separator" class="divider"></li>
                 <li class="title"><span><b>Helium Framework (Experimental)</b></span></li>
                 <li><a href="{{BASE_PATH}}/development/writingzeppelinapplication.html">Writing Zeppelin Application</a></li>

docs/index.md

@@ -172,6 +172,7 @@ Join to our [Mailing list](https://zeppelin.apache.org/community.html) and repor
   * [Shiro Authentication](./security/shiroauthentication.html)
   * [Notebook Authorization](./security/notebook_authorization.html)
   * [Data Source Authorization](./security/datasource_authorization.html)
+  * [Helium Authorization](./security/helium_authorization.html)
 * Helium Framework (Experimental)
   * [Writing Zeppelin Application](./development/writingzeppelinapplication.html)
   * [Writing Zeppelin Spell](./development/writingzeppelinspell.html)

docs/security/helium_authorization.md

@@ -0,0 +1,28 @@
+---
+layout: page
+title: "Helium Authorization in Apache Zeppelin"
+description: "Apache Zeppelin supports Helium plugins which fetch required installer packages from remote registry/repositories"
+group: security
+---
+<!--
+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.
+-->
+{% include JB/setup %}
+
+# Helium Authorization in Apache Zeppelin
+
+<div id="toc"></div>
+
+## How to configure proxies?
+
+Set **http_proxy** and **https_proxy** env variables to allow connection to npm registry behind a corporate firewall.