Currently when user creates a KogitoRuntime and other objects using a yaml file he needs to define the following

image:

  domain: <registry>

  namespace: <your_namespace>

  name: <image_name>

  tag: <tag>

The image here should also be defined in the same format as for any other Kubernetes object i.e. 

image: <registry>/<your_namespace>/<image_name>:<tag>

if need be the information can be parsed to get the individual items.