An additional (possibly dumb) question - does Dagit/dagster support mode alteration un the UI/CLI? For instance if I wanted to run a pipeline under a specific mode, but with one resource changed? Or do I have to create a new mode to support that use-case?

currently you have to make a new

Mode

Thanks, Alex 👍

@Ben Torvaney - out of curiosity, what's a situation where it would be helpful to be able to do this in Dagit?

Well at the moment we have some pipelines for local development and testing which use local/mocked resources. Although occasionally it can be useful to pull in “real” data for one resource. Creating a new mode temporarily is fine, I was just wondering if there was another way

That makes sense. If you want to be able to vary that behavior from Dagit / CLI, one approach would be to make a "composite" resource that does mock vs. real stuff depending on what config option you give it. E.g.

@resource(config_schema={"environment": str}):
def my_resource(init_context):
    if init_context.resource_config["environment"] == "prod":
        return MyProdResource()
    else:
        return MyDevResource()