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These materials are the copyright of John Wiley & Sons, Inc. and any dissemination, distribution, or unauthorized use is strictly prohibited. 20 Platform as a Service For Dummies, Special Edition PaaS tied to an operating environment When you tie a PaaS to an operating environment, you can perform certain actions easier. This approach makes sense if the customer is certain to use only a specific IaaS provider to run its applications and doesn’t require the depth of a dedicated PaaS provider. Companies like Microsoft with its Azure platform and Amazon with Beanstalk are offering their APIs and abstractions so developers can build or deploy applications with this support. For example, the Windows Azure platform is based on Windows and SQL abstractions. Microsoft has abstracted a set of development tools, management, and services. For customers with deep expertise with .NET, the movement to the Azure based PaaS is straightforward. The developer, in essence, ties the development and deployment to the Microsoft infrastructure. Amazon.com offers its own PaaS platform focused on deployment. The PaaS environment, AWS Elastic Beanstalk, is intended to help customers who’ve built applications on Amazon’s cloud to more easily deploy and manage applications within the Amazon AWS cloud. Open platform-based PaaS environments Open platform-based PaaS is intended to promote an open process and environment that isn’t tied to a single cloud implementation. Several open platform initiatives are underway: ✓ Cloud Foundry is a VMware-led project that’s a PaaS environment for building, deploying, and operating cloud applications. ✓ OpenShift is a Red Hat initiative. ✓ CloudBees is a Java PaaS platform that’s independent of the underlying platform and is intended to allow developers to cover the full application “build, test, run, manage” lifecycle, either on a public or hybrid cloud.
These materials are the copyright of John Wiley & Sons, Inc. and any dissemination, distribution, or unauthorized use is strictly prohibited. Chapter 2: Getting into Platform as a Service 21 Seeing the Business Value of Using a PaaS You can enjoy a number of business benefits from using a PaaS. This section includes those perks. Reducing costs PaaS can certainly reduce costs. And in order to evaluate the economic impact of PaaS, take a look at the costs that are directly and indirectly related to the application or type of workload you want to move to the cloud. These costs may include ✓ Server and storage overhead: Unused computing capacity requires power and cooling to run as well as demanding floor space that’s often a huge expense for companies. ✓ Network: Network bandwidth in data centers isn’t unlimited. Many companies find moving commodity services to cloud-based services more cost effective. This practice frees up expensive network capacity, floor space, and energy consumption. ✓ Software maintenance: The cost of managing software updates and changes is often a burden to development and operational organizations and a huge expense both in terms of time and money. While a platform requires a per-user, per-month charge, the cost is typically offset by the cost of software license costs and yearly maintenance fees. ✓ Support personnel: These costs include staff responsible for everything from storage and archiving to patch management, networks and security, and help desk. Improving speed, flexibility, and agility Continuous delivery, if adopted, is the ultimate goal to get products to market faster and to align with agile development practices. PaaS can help
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