SAM to deploy Image-Based Lambda

My Question: Can you create an ECR repository and an Image-backed lambda from a Dockerfile from my local via SAM without the need to build the image and upload it first outside of SAM? I was hoping I could define my Dockerfile, the relative file paths, and SAM would handle the rest.

Context: I want to use SAM to manage an ECR repository and the Docker image that will back a lambda function. I have attempted a combination of configurations in the SAM template including:

• defining the ECR repository
• using the Metadata to point to the Dockerfile that sits alongside the Lambda function (python)
• Specifying the ImageURI
• Specifying CodeURI

The error appears to be related to the fact that the image is not being added to ECR. Naturally, SAM rolls back the deploy, so I am trying to figure out where things are falling over.