Feature request: PipelineRun.Spec.CustomRunSpecs

[lbernick]

Feature request

Right now, some fields from pipelineRun.spec.taskRunSpecs are passed to custom runs created by the PipelineRun. Not all fields in taskRunSpecs make sense for Runs, so it might be worth creating a field pipelineRun.spec.customRunSpecs (and potentially pipelineRun.spec.customRunTemplate) to pass configuration to child customRuns. We can use this issue to discuss whether this makes sense, and if so, what fields should be present.

Use case

No concrete use cases right now-- the main one is serviceAccountName (since podTemplate will be removed from custom run spec).