Creating OpenStack Images

The official documentation for creating OpenStack images from an ISO can be found here. In this article we will discuss how to create an image from a running instance and how to upload an existing image file to an OpenStack instance. To create a new VM image from a running VM instance we first need to install client tools. Install Client Tools for Nova, Glance & Swift: Execute the below command to install nova-client, glance-client and swift on an Ubuntu host. »

Apache Stratos in a Nutshell

[Based on Apache Stratos 3.0.0] Apache Stratos is an open source, enterprise grade Platform as a Service (PaaS) cloud platform built with open standards. Stratos was originally developed by WSO2 and very recently donated to Apache Software Foundation (ASF) with the vision of making it the most open PaaS framework in the market by involving a wide range of organizations and individuals to design and implement it’s features at their best [1]. »

NTFS Write Support on Mountain Lion

One of the first things that you would notice if you plug-in a portable hard drive formatted in NTFS format to a Mac with Mountain Lion is that the drive is read only. Sometimes you may have not even notice it if you did not try to execute any write operations. Out of the box Mountain Lion does not support write access to Windows based file system NTFS. However FAT32 is read/write supported. »

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Running Monoscape on OpenStack

Since it’s inception Monoscape was built on top of OpenStack IaaS. This was around early 2011. During this time OpenStack had only a minimal set of features and components like Nova - Compute, Swift - Object Storage, Glance - Image Service and a very basic web interface. It even didn’t had a proper installation process, most people used Stackops distributions. In contrast today OpenStack is a very matured product. Now it has many componenets (Ceilometer - Billing, Cinder - Block Storage, Glance - Image Service, Heat - AWS CloudFormation, Horizon - Dashboard, Keystone - Identity Management, Nova - Compute, Quantum and Swift) including a rich set of features and a well defined installation process. »

Android Automated Unit Testing

I did some experiments with Android Unit Testing features to implement a custom automated unit testing framework recently. Android itself has a unit testing framework built in. This has been written using JUnit and has implemented new functionality to test Android specific features such as Activities, Services and Content Providers. The basic concept behind Android Unit Test framework is to implement an Android test application similar to a standard Android application and define required meta data to identify the application to be tested and test steps. »