Cloud Foundry: Design and Architecture
Derek Collison discusses the goals, the design premises and patterns employed in creating the architecture of Cloud Foundry, VMware’s open source PaaS, unveiling internal architectural details.
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Posted by Jean-Jacques Dubray on Aug 03, 2011
WSO2 announced last week the launch of Stratos 1.5, a Cloud Middleware Platform, and the StratosLive PaaS. Together, they enable the development and deployment of SOA and composite applications in the Cloud. StratosLive PaaS is a new hosted service powered by WSO2 Stratos. Stratos and StratosLive enable developers to migrate their applications and services between on-premise servers, a private PaaS, a public PaaS, and hybrid cloud environments.
Sanjiva Weerawarana, WSO2 founder and CEO explained:
The cloud is a compelling platform for enabling enterprises to combine the agility they’ve gained by employing SOAs and composite applications with an extended reach and greater cost efficiencies. At WSO2, we’re delivering on this promise by providing [an] open and complete PaaS
WSO2 StratosLive and WSO2 Stratos include the ten offerings first launched with WSO2 Stratos 1.0:
WSO2 also added four new offerings:
Central cloud features such as multi-tenancy, automatic metering and monitoring, auto-scaling, centralized governance and identity management, and single sign-on are built directly into the core platform which is built on an integration layer that allows it to install onto any existing cloud infrastructure such as Eucalyptus, Ubuntu Enterprise Cloud, Amazon Elastic Computing Cloud (EC2), and VMware ESX.
Stratos added several new core enhancements. It allows, for instance, developers to build their own SaaS Web applications and use the multi-tenant WSO2 as a service to manage tenant identities. It integrates readily with Google Apps user directories, enabling OpenID SSO into WSO2 Statos using an authorized Google Apps user name and password. Stratos also supports metering and throttling to manage tenant's capacity levels. WSO2 also added a billing module that lets companies generate monthly invoices and send email notifications.
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