Hello everyone!, is there a way to push a Docker image to a newly created ECR Repository using Pulumi, similar to what crosswalk does but in Python?.

yep! see here: https://github.com/pulumi/examples/blob/258d3bad0a00020704743e37911c51be63c06bb4/aws-django-voting-app/__main__.py#L217-L231

Coool that helps, thanks @billowy-army-68599!