Our team is using Kubernetes Spring Cloud Dataflow version 2.01, and it appears to require an explicit docker:// URL for docker containers: https://docs.spring.io/spring-cloud-dataflow/docs/2.0.0.BUILD-SNAPSHOT/reference/htmlsingle/#getting-started-kubernetes
We have been using google registry to register docker containers, Spring Cloud Dataflow throws an exception when trying to register docker containers from the google registry: java.net.URISyntaxException: Illegal character in path at index 58: gcr.io/....
It's a legit docker container, just not hosted by docker. Is this a bug or is google registry unsupported?
I believe what you're missing is the configuration of private Docker registry in SCDF - see docs.
Once when you have that setup in SCDF/Skipper, you would be able to resolve images from any registry, as far as it is an implementation of Docker specs underneath. Google Container Registry should work.