Currently ray clusters can only be created in the ray operator namespace, as the operator watches only the operator namespace. There should be a configuration to start the ray operator with cluster roles and have it watch and create clusters in any namespace.

Support creating clusters in multiple namespaces

Dmitri February 14, 2021, 9:34am 3

Yeah, this should be not too bad to do.
Made a GitHub issue to remind myself

Namespaces support by Ray operator