Thursday, September 25, 2014

What can help Public/Hybrid Clouds become mainstream?

I think its network. If the network offers such speeds over WAN that you can't differentiate between a local and WAN, you can host anything anywhere including partitioning apps. Apps can retain databases on-premises and move business/presentation to the Cloud. What possibilities do you think are possible?

Wednesday, August 20, 2014

Setting up mobile development

How to configure Ionic on Windows

1. Download and install nodejs
This install an utility called 'npm'. 'npm' is Nodejs Package Manager. Make sure 'npm' directory is in available in PATH
2. Install Apache Cordova. Run "npm install -g cordova"
Apache Cordova is open source version of Adobe PhoneGap. 
3. Install Ionic. Run "npm install -g ionic"
Make sure both Cordova and Ionic package directories are available in PATH. In my case, 'npm' install this in 'C:\Users\<<User>>\AppData\Roaming\npm' directory

To create a sample Ionic Application (called 'todo'), execute following commands:
ionic start todo blank
cd todo
ionic platform android
ionic emulate android

The last command should start an Android emulator. However, there are sometimes teething issues that need to be handled. Emulator is chronically slow and appears to be not working without the execution of steps below.

1. Intel's virtualization technology should be enabled in BIOS
2. Make sure "Intel x86 Emulator Accelerator (HAXM Emulator)" is installed through Android SDK manager. The package setup needs to be executed separately as installing it through SDK manager doesn't install it.
3. While creating AVD through AVD manager, enable "Use Host GPU".

In next blog, we will hook an Ionic app to Google Cloud based app.

Thursday, May 1, 2014

AWS (Amazon Cloud) OpsWorks

Just executed a standard tutorial on running PHP applications using OpsWorks. Amazing interface and ease of use. However it lacks, ability to assign resource tags. When the stack is being created, the resource tagging should happen in a seamless way.

Sunday, April 6, 2014

Compare AWS and Azure


Amazon Web Services

Microsoft Windows Azure

Computing power

Virtual machinesElastic Compute CloudRole Instances
High Performance ComputingCluster Compute InstancesHPC Scheduler
MapReduceElastic Map ReduceHadoop on Azure
Dynamic scalingAuto ScalingAuto Scaling Application Block


Unstructured storageSimple Storage ServiceAzure Blob
Flexible entitiesSimpleDBAzure Tables
Block Level StorageElastic Block StoreAzure Drive
ArchivingAmazon Glacier
Storage GatewayAWS Storage Gateway


RDBMSRelational Database ServiceSQL Azure
NoSQLDynamoDBAzure Tables




Load BalancerElastic Load BalancerFabric Controller / Traffic Manager
Hybrid CloudVirtual Private CloudAzure Connect
PeeringDirect Connect
DNSRoute 53

Messaging & Applications

Async MessagingSimple Queue ServiceAzure Queues
Push NotificationsSimple Notification ServiceService Bus
Bulk EmailSimple Email Service
WorkflowsAmazon Simple Workflow Service
SearchAmazon CloudSearch


Resource monitoringCloudWatchSystem Center


Identity ManagementIdentity Access ManagementAzure Active Directory


Resource creationCloudFormation
Web Application ContainerElastic BeanstalkWeb Role

Wednesday, March 12, 2014

Sample Cloud Tester Profile

  Cloud Tester
Role Definition Technical member of Cloud testing team
Pre-Requisites Past experience of performing functional testing of applications with one or more specialized areas such as performance, load/ stress and security etc.
Experience testing RESTful and SOAP based web services
Solid understanding of HTTP/S; Knowledge of JSON, XML and queue based messaging
No prior understanding of Cloud is required
Mandatory Skills Basic understanding of Cloud deployment models
Basic Understanding of Cloud provided infrastructure and services
Basic understanding of security related aspects, impact of Cloud on security and ability to create secure test data for Cloud based testing
Ability to provision hardware/ software and setup test environment in the Cloud
Working knowledge of relational databases and applicable Operating System (OS)
Ability to understand metrics such as page load times, network latency, response times etc., correlate it with requirements and report bugs wherever there are gaps
Ability to inject (large scale) data and traffic from multiple locations spread across the world (whenever required)
Optional Skills Basic understanding of Cloud Provider's costing model
Basic understanding of NoSQL databases
Knowledge of multi-tenancy architectures
Knowledge of testing for mobile enviornments and devices

- Visual Studio based load test service
Certification (Optional) None
Supervision Close supervision required
Line reporting Reports to Test Manager
Interactions With Whom: Testing and development teams; No customer interaction

Thursday, March 6, 2014

AWS issues

- Low quality support on forums. Folks on support do not show the kind of expertise expected
- Increasing complexity will add to need to get more front line architects at greater expense
- Where do developers test without incurring significant expenses? More importantly organizations won't like unpredictability in their cost. Even free tier limits may be breached. Where are simulators? That's a big plus for Azure. May be Amazon should offer sandbox environment to large enterprises on per user basis. CloudFormation doesn't have a sandbox or simulator. What a pity!
- Some of services are launched without free tier offering. What do we do with that?
- Edicational institutions are not churning cloud developers. Amazon needs to find a way to promote cloud as a subject and get ready programmers.

Sunday, March 2, 2014

.NET AWS Cloud Development Profiles

Cloud Developer Senior Cloud Developer Technical Lead - Cloud
Role Definition Technical member of Azure development team, writes code, unit test and perform bug fixes on Azure platform Technical member of Azure development team, contributes towards high level design of relatively less complex modules using Object oriented and Cloud design patterns; Writes code and performs unit testing and reviews work of Cloud Developers Technical leader of a team responsible for a Azure based sub-system/ module. Interacts with customer during design phases (after architecture phase) and beyond.
Pre-Requsities Good understanding of .NET platform
Knowledge of EntityFramework and Enterprise library
No prior understanding of Cloud is required
Good understanding of .NET platform
Ability to design relatively less complex modules
No prior understanding of Cloud is required
Excellent understanding of .NET platform; Minimum 6 years of experience on .NET
Ability to independently design complex sub-systems/ modules
No prior understanding of Cloud is required
Mandatory Skills Good understanding of Cloud environment and deployment models
Basic understanding of key Azure services *
Ability to program using Azure SDK for .NET
Knowledge of Management Portal; Windows OS and System Manager
Knowledge of Cross-Platform Command-Line Interface (xplat-cli) and Azure Emulators
Ability to program using OData services
Understanding of RESTful and SOAP based Web Services
In addition to Cloud Developer skills, following additional skills are required:
Deep understanding of key Azure services including aspects such as security, performance, availability etc.
Understanding of Azure design patterns and ability to apply those to the design
Understanding of monitoring capabilities available on Azure, ability to derive actions from the reports and implement them
Ability to design and program using Enterprise Library Transient Fault Handling Block
In addition to Senior Cloud Developer skills, following additional skills are required:
Ability to understand architecture documents defined by Architect(s) and follow during implementation
Ability to design complex sub-systems and technically supervise and own implementation, testing and deployment
Deep understanding of Azure security best practices and ability to design secure sub-systems **
Deep understanding of Cloud deployment models
Deep understanding of applicable OS
Ability to drive successful implementation of Continuous Integration; Derive/Take actions based on reported code quality metrics
Good understanding of integration patterns (especially between Public and On-premises applications)
Optional Skills Basic understanding of features offered by all Azure services
Ability to write Powershell scripts
Basic understanding of deployment tools such as Octopus Deploy
Use of "Visual Studio Online" service
In addition to Cloud Developer, following additional skills are required:
Basic understanding of Virtualization enviornments/  Hyper-V hypervisor and its impact on performance and security
Basic understanding of NoSQL databases
Good understanding of security related coding best practices and features offered by .NET platform; Top ten issues from OWASP; Basic understanding of OWASP .NET Cheat Sheet (
Basic understanding of Azure reference architectures
In addition to skills outlined for Senior Cloud Developer, following additional skills are required:
Basic understanding of various possible use-cases in Cloud in-general and Azure in-specific
Deep understanding of Azure reference architectures
Drive to explore feasibility of using new technologies to solve specific customer problems
Basic understanding of multi-tenancy architectures
Ability to design and program using NoSQL databases
Understanding of any one Cloud agnostic library and ability to leverage similar design principles in own sub-systems
Certification (Optional) None Developing Windows Azure and Web Services Developing Windows Azure and Web Services
Supervision Close supervision required Works with average supervision Works with minimal supervision
Line reporting Reports to Project Manager Reports to Project Manager Reports to Project Manager
Interactions With Whom: Technical team; No customer interaction With Whom: Technical team; No customer interaction With Whom: Technical team; Project Manager; Customers from design phase onwards (Architects manage customer interactions during DD, Requirements and Architecture definition phases)