Image Streams


An image stream is a single pointer to a set of related images.

One image stream can contain many different tags (latest, develop, 1.0, etc), each of which points to an image in a registry.

Whenever you want to deploy an application in a project, instead of having to hardcode the registry URL and tag, you can just refer to the image stream tag.

If the source image changes location in future, you just need to update the image stream definition, instead of updating all your deployments individually!

This is how the Red Hat images work in OpenShift. The Red Hat images are installed as image streams in the openshift project. You can reference them from any other project in the cluster.



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