August 17, 2013
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Below is a brief write up of some personal views. Let me know your thoughts.
Windows Azure is the premier cloud offering from Microsoft. It has a comprehensive set of platform services ranging from IaaS to Paas to SaaS. This is a great value proposition for many enterprises looking to migrate to cloud in a phased manner; first move as-is with IaaS and then evolve to PaaS. In addition, Azure has deep integration across Microsoft products –including SharePoint, SQL Server, Dynamics CRM, TFS, etc. This translates to aligned cloud roadmap, committed product support and license portability. Though .NET is the primary development environment for Azure platform, most of the Azure services are exposed as REST APIs. There are JAVA, Ruby and other SDKs available which allows variety of developers to easily leverage Azure platform. Azure also allows customers to spawn Linux VMs, though that’s limited to IaaS offerings.
Force.com allows enterprises to extend Salesforce.com – the CRM from SalesForce. Instead of just providing SDKs and APIs, Salesforce has created force.com as a PaaS platform – so that you focus only on building extensions; rest is managed by Salesforce. Salesforce also provides a marketplace ‘AppExchange’ where companies can sell these extensions to potential customers. Though force.com offers an accelerated development platform (abstracting many programming aspects), programmers still need to learn APEX programming language and related constructs. Some enterprises are considering force.com as their de-facto programming platform – taking it beyond the world of CRM. It’s important to understand the applicability of force.com for such scenarios would typically be limited to transactional business applications. So, where should enterprises go when they need to develop custom applications with different programming stacks and custom frameworks? Salesforce answer is Heroku. Heroku supports all the major programming platforms including Ruby, Node.js, JAVA, etc. with exception of .NET. Heroku uses Debian and Ubuntu as the base operating system.
Many enterprises today are contemplating their move to PaaS cloud citing vendor lock-in. For instance, if they move to Azure PaaS platform their applications would run only on Azure, and they would have to remediate them to port to AWS. It would definitely be great to have a PaaS platform agnostic of a vendor. This is the idea behind open source PaaS platform Cloud Foundry. It’s an effort co-funded by VMware and EMC. VMware offers a Cloud Foundry hosted solution, with the underlying infrastructure being vCloud. Cloud Foundry supports various programming languages like Java, Ruby, Node.js, etc. and frameworks like MySQL, MongoDB, RabbitMQ among others. VMware also offers vFabric, a PaaS platform focused on JAVA spring framework. vFabric is an integrated product with VMWare infrastructure, providing a suite of offerings around Runtime, Data Management and Operations. I feel future of vFabric is likely to depend on the industry adoption of Cloud Foundry (there is also another open source PaaS effort being carried out by Red Hat called OpenShift).