UW-653 controller key path

[maddenp-noaa]

Synopsis

To support coupled driver applications where subcomponents defer to a "controller" component's config block for their execution and/or rundir values, we initially implemented a single key identifying to identify the controller component's block at the top of the config. In UW YAML in general, however, config blocks can be nested arbitrarily deeply, and a key path provided to navigate to them. This PR adds the ability to locate the controller component's block via an arbitrary key path. This is a breaking change because the controller argument now requires list[str] value; but we only have a single coupled component at the moment, so it should be an easy update when this change is released in a future v2.5.0.

Type

• Enhancement (adds new functionality)

Impact

• This is a breaking change (changes existing functionality)

Checklist

• I have added myself and any co-authors to the PR's Assignees list.
• I have reviewed the documentation and have made any updates necessitated by this change.

[WeirAE]

Thats a good catch, it should be fine to set now and update for the release!