Allow templateRef for Entrypoint without requiring name

[christophenoel]

Summary

I would like to propose a feature request for Argo Workflows. Currently, when a WorkflowStep needs to reference a template in a WorkflowTemplate, it must specify the template name explicitly using templateRef. This request is to allow a WorkflowStep to call the entrypoint of a WorkflowTemplate directly without needing to specify the template name.

Motivation

In many use cases, it is beneficial to call the entrypoint of a WorkflowTemplate from a WorkflowStep, especially in scenarios where the WorkflowTemplate is designed with a primary entrypoint that is commonly used. Having to specify the template name explicitly in each WorkflowStep can be redundant and less flexible, particularly if the WorkflowTemplate's entrypoint changes over time.

Suggested Implementation

An approach could be making template property optional, or introducing a new field or a special syntax used in combination of templateRef field that, which would automatically refer to the entrypoint of the specified WorkflowTemplate.