Update documentation

Add more documentation for the Web application.

Issue-ID: OAM-18
Signed-off-by: demx8as6 <martin.skorupski@highstreet-technologies.com>
Change-Id: I928ab076b3144c6b01647fedaaf8b23a551173f5
diff --git a/docs/sdnr_Docker_Image_configuration.rst b/docs/sdnr_Docker_Image_configuration.rst
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+.. contents::
+   :depth: 3
+..
+
+SDN-R Docker Image configuration
+================================
+
+Introduction
+~~~~~~~~~~~~
+
+ONAP SDN-R is running in a docker container using ONAP/SDN-C image
+"onap/sdnc".
+
+The container is available as Alpine and Ubuntu version. The description
+uses examples for the Alpine version.
+
+The alpine based sdnc docker imanges are stored in \ `ONAP Nexus sdnc
+image <https://nexus3.onap.org:10001/v2/onap/sdnc-image/tags/list>`__.
+
+The docker image contains a Opendaylight distribution in a standard
+configuration and ONAP/SDN-R specific microservices.
+
+The Root location of ODL Karaf directory structure
+is \ *ODL\_HOME=/opt/opendaylight.*
+
+During container provisioning the installation of the feature is done,
+according to the provided configuration setting.
+
+The docker image configuration is done by
+
+-  Specific Environment variables settings
+
+-  Files that are provided
+
+Container startup parameters
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The SDN-R specific configurations are provided during container start. 
+
+Different SDN-R services are using different parameter to be installed.
+
++------------------+---------------------+-------------------------------------------------------------------------------------------------------------------------+
+| **Parameter**    | **Content**         | **Description**                                                                                                         |
++==================+=====================+=========================================================================================================================+
+| SDNRWT           | true\|\ **false**   | Set true to activate sdnr wt featureset. Set this during container start.                                               |
+|                  |                     |                                                                                                                         |
+|                  |                     | Devicemanager configuration is provided via *$ODL\_HOME/etc/devicemanager.properties*                                   |
+|                  |                     |                                                                                                                         |
+|                  |                     | See  `SDN-R WT Service Configuration parameters <sdnr_WT_Service_Configuration_parameters.html>`__			   |
++------------------+---------------------+-------------------------------------------------------------------------------------------------------------------------+
+| SDNRNORTHBOUND   | true\|\ **false**   | Set true to activate sdnr oofpci service.                                                                               |
++------------------+---------------------+-------------------------------------------------------------------------------------------------------------------------+