Architecting the Future with Abstractions and Metadata

OpenShift extends this further by adding more abstractions, including BuildConfigs and ImageStreams. A BuildConfig is used to describe how an application should be built to include the image used to build the application, the image to be used for running the application, where the image should be stored, and when a build should be initiated. ImageStreams are an image-registry abstraction. ImageStreams can reference images stored in the OpenShift integrated registry, Docker Hub, or an internal company registry. All of these references and the related data are abstracted away from the end user, which greatly simplifies image management from an application developer's perspective.