VMware Cloud Foundry
VMware bought SpringSource in 2009. Therefore, it isn't surprising that our "legacy" application, which was already based on the Spring Framework, worked seamlessly on Cloud Foundry. Although Cloud Foundry is still beta, it was very polished and worked well.
Differentiators. A key differentiator is the native support of the Spring framework. According to VMware, Cloud Foundry was built in collaboration with the SpringSource engineering team to ensure a seamless development, deployment, and management experience for Java developers. VMware also noted that Cloud Foundry is "unique in its multicloud approach," allowing developers to deploy the same application, without code or architectural changes, to multiple infrastructures both public and private. In fact this isn't unique, as OpenShift is similar, but VMware is uniquely positioned to do it. Unlike CloudBees, Heroku, and Red Hat, VMware has built its own cloud rather than building on Amazon Web Services.
Lock-in. VMware addressed the question of lock-in to my satisfaction. Because the platform is open source and there's a broad ecosystem of compatible providers (examples include CloudFoundry.com, Micro Cloud Foundry, AppFog, and Tier3), developers can easily move applications between Cloud Foundry instances, both on public clouds or private infrastructures. VMware noted that in addition to the multicloud flexibility, this open source flexibility ensures that developers and customers aren't locked into one cloud or one platform. As proof, the company pointed me to a blog post on extracting data using the Cloud Foundry data tunneling service, which is far and above "You can dump it to CSV and port it yourself."
Security. We were unable to find any published documentation on security certifications (PCI, SAE, and so on) for Cloud Foundry. VMware pointed me to its User Authentication and Authorization service, which appears to be a single sign-on scheme based on OAuth2. This could be a helpful service for application developers, but government organizations and large companies are going to require VMware to provide documentation of security certs before migrating to its cloud.
Who's using it? Cloud Foundry is well positioned to meet the needs of companies that want a combination of public and private PaaS. Its focus on an ecosystem of Cloud Foundry providers is a strong point, especially with regards to lock-in. Cloud Foundry is clearly aimed at Ruby, Node.js, and JVM-based languages. If you have a more diverse technology base, this may not be your first choice.
How did it do? We installed the Eclipse plug-in, deployed the WAR, and changed nothing. In fact, the first time we deployed Granny, we accidentally deployed it configured with CloudBees' JDBC information. Cloud Foundry automatically detected our Spring configuration and reconfigured the database settings for our Cloud Foundry database. This kind of magic may make some people nervous, but it worked seamlessly.
Conclusions. Cloud Foundry "just worked" -- we did nothing to the application but install an Eclipse plug-in. What's not to love? For ops teams, there's also a command-line interface. Once this PaaS launches, depending on pricing and such, it will certainly be a viable choice for Java developers. We can assume that for Ruby, which Cloud Foundry is written in, you would have a similar experience. (We have also tested the Node.js interface, which was a little trickier but still very workable.)
Cloud Foundry worked great and was the most straightforward. We were so successful with the Eclipse plug-in that we didn't try the command-line interface. Of course the test wasn't perfectly "fair" in that the app was a Spring app in the first place, but the app was written to be run on a local Tomcat instance, yet it deployed seamlessly to the Cloud Foundry cloud. Considering much of the legacy that will move to the cloud is Java and most existing Java apps are written in Spring, we're excited to see Cloud Foundry launch.
This article, "Which freaking PaaS should I use?," originally appeared at InfoWorld.com. Follow the latest developments in cloud computing at InfoWorld.com. For the latest business technology news, follow InfoWorld.com on Twitter.
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