Cloud Foundry Core is the industry’s first standard for writing cloud portable applications. It provides a baseline of common capabilities and an open mechanism to instantly validate application portability.

Anyone providing a Cloud Foundry instance can become “Cloud Foundry Core compatible” by providing a baseline of common runtimes and services as defined on core.cloudfoundry.org/definition.

Anyone can go to core.cloudfoundry.org and instantly validate that their Cloud Foundry instance is Cloud Foundry Core compatible using a simple automated test.

The current versions of Core compatible runtimes and services can always be found at core.cloudfoundry.org/definition

The Cloud Foundry Core definition will be periodically updated based on market demand and the evolution of the various open technologies involved. For the current Cloud Foundry Core definition visit core.cloudfoundry.org/definition.

Cloud Foundry Core is a community program that is part of the CloudFoundry.org open source project. As such it does not include any licensing requirements for use of the CloudFoundry.com service. Guidelines for usage of the Cloud Foundry Core logo can be found here.

All technical questions about Cloud Foundry Core can be directed to the Cloud Foundry Core providers or by visiting support.cloudfoundry.com.

A green checkmark next to a service or runtime in the Cloud Foundry Core test results confirms and validates a Core compatible version of that service or runtime is present on the instance being tested. Absence of the checkmark indicates that either the service or runtime is not present or is not compatible with the version in the Cloud Foundry Core definition.

The Cloud Foundry Core badge indicates that provider offering the given Cloud Foundry instance is compatible with the current Cloud Foundry Core definition available at core.cloudfoundry.org/definition.

Cloud Foundry is committed to preserving cloud portability, now and in the future. Ultimately Cloud Foundry Core is the focal point for a network of compatible Cloud Foundry instances and distributions to take shape and grow, preserving choice for the developers and consumers of applications.

The Cloud Foundry Core program is the best way to reach the hundreds of thousands of developers using the Cloud Foundry open PaaS technology. This developer community demands application portability. Joining the Cloud Foundry Core program and displaying the Cloud Foundry Core logo is proof of your commitment to cloud portable applications and an open approach to validation. To learn about the Cloud Foundry Core program and how to become a member, visit core.cloudfoundry.org/program

According to Wikipedia, “Open Core is a business model where an open source product is also made available commercially with non-open-source additions”. Cloud Foundry Core is the industry’s first standard for writing cloud portable applications. It provides a baseline of common capabilities and an open mechanism to instantly validate application portability.

Private instances of Cloud Foundry, such as ActiveState Stackato, can be tested for Cloud Foundry Core compatibility using the instant validation tool at core.cloudfoundry.org as long as they have a publicly accessible Cloud Foundry API endpoint.